Lung-Wen Chen

Dr. Lung-Wen Chen

Affiliate Associate Research Professor

E-Mail

Lung-Wen.Chen@dri.edu

Division

Atmospheric Sciences

Professional Interests

Dr. Chen is now an Associate Research Professor and leader of the Aerosol Applications Laboratory at DRI’s DAS and has 12 years of experience in atmospheric aerosol research. His research focuses on: 1) characteristics of trace gas pollutants and particulate matter (PM) from combustion sources (e.g., fossil fuel and biomass burning) and in ambient air; 2) source apportionment by receptor or hybrid models; 3) optical modeling; 4) novel techniques for quantifying aerosol light absorption; and 5) environmental and climate effects of PM. Dr. Chen is a known expert in the field of carbon analysis and PM source apportionment, with more than 20 peer-reviewed publications in these areas, which have been cited more than 400 times. He has participated in several federally and state-funded projects, including biomass burning studies sponsored by the U.S. Forest Service through the Joint Fire Science Program (JFSP) and Southern Nevada Public Land Management Act (SNPLMA). From 1999 to 2002, Dr. Chen conducted the Maryland Aerosol Regional Characterization (MARCH-Atlantic) study to analyze regional haze, and develop a source apportionment technique coupling factor and ensemble air parcel back trajectory analyses. From 2008 to 2009, he organized the El Paso Air Toxics Study, using an In-Plume system to assess cross-border transport of pollutants between the U.S. and Mexico. Dr. Chen has worked on visibility, PM, and volatile organic compound (VOC) source apportionment projects in the California central valley (California Regional PM Air Quality Study [CRPAQS]), as well as Minnesota, Hong Kong, and China. He was also co-PI for an EPA Science to Achieve Results (STAR) project to evaluate large-scale receptor models. He has assisted in the QA/QC process for carbon analysis as part of the Interagency Monitoring of Protected Visual Environments (IMPROVE) network since 2005. Dr. Chen has hands-on experience in modeling, field and laboratory measurement, method development, and instrumentation. His research interests include studying sources, evolution, and environmental impacts of atmospheric trace gases and aerosols, through field/laboratory experiments and receptor modeling. The focus of his research is on improving techniques for the quantification of light-absorbing carbonaceous aerosol, and on investigating various thermal evolution methods, and in-situ or time-integrated optical measurements which provide insights into the current emission inventories and radiative forcing estimates.

Research Areas

Characteristics of trace gas and particle emissions from combustion sources with a focus on carbonaceous material
Evolution of pollutants in the atmosphere and associated environmental/radiative impacts
Novel techniques for quantifying light-absorbing carbonaceous aerosol.

Education

Degree	Year	Institution	Area
Ph.D.	2002	University of Maryland at College Park	Chemical Physics
M.S.	1998	National Taiwan University, Taipei, Taiwan	Physics
B.S.	1994	National Taiwan University, Taipei, Taiwan	Physics

Keywords

air quality, black carbon, biomass burning, receptor modeling, aerosol

Publications

2024

Haiwei, L., Men, Q., Ho, S.S.H., Cui, L., Lu, Y., Wang, Z., Li, J., Zhang, Y., Wang, J., Chen, L.-W.A., Liao, H., Chow, J. C., Watson, J. G., Cao, J., S.C., L., Ge, X., Huang, Y. (2024). Exploring manganese-catalyzed heterogeneous oxidation of isoprene: An extended insight into atmospheric free-radical chemistry, Science Advances, submitted

Wang, X.L., Abbasi, B., Elahifard, M., Osho, B. O., Chen, L.-W.A., Chow, J. C., Watson, J. G. (2024). Coal Mine Dust Size Distributions, Chemical Compositions, and Source Apportionment, Minerals, 14, https://doi.org/10.3390/min14111122

2023

Wang, X., Gronstal, S. B., Lopez, B., Jung, H., Chen, L.-W.A., Wu, G., Ho, S.S.H., Chow, J. C., Watson, J. G., Yao, Q., Yoon, S. (2023). Evidence of non-tailpipe emission contributions to PM 2.5 and PM 10 near southern California highways, Environmental Pollution, 120691, 10.1016/j.envpol.2022.120691

Roy, P., Chen, L.-W.A., Gebreselassie, A., Li, Y., Chow, J. C., Watson, J. G., Chen, Y. (2023). High time-resolution fenceline air quality sensing and dispersion modeling for environmental justice-centered source attribution, Atmospheric Environment, 119778, 10.1016/j.atmosenv.2023.119778

Lopez, B., Wang, X., Chen, L.-W.A., Ma, T., Mendez-Jimenez, D., Cobb, L., Frederickson, C., Fang, T., Hwang, B., Shiraiwa, M., Park, M., Park, K., Yao, Q., Yoon, S., Jung, H. (2023). Metal contents and size distributions of brake and tire wear particles dispersed in the near-road environment, Science of The Total Environment, 883, 163561, https://doi.org/10.1016/j.scitotenv.2023.163561

Chen, L.-W.A., Wang, X., Lopez, B., Wu, G. Y., Ho, S.S.H., Chow, J. C., Watson, J. G., Yao, Q., Yoon, S. J. (2023). Contributions of non-tailpipe emissions to near-road PM2.5 and PM10: A chemical mass balance study, Environmental Pollution, 122283, 10.1016/j.envpol.2023.122283

2022

Mendes-Emygdio, A., Andrade, M., Teixeira-Goncalvesa, F., Chen, L.-W.A., Engling, G., Watson, J. G., Chow, J. C. (2022). Source apportionment of particulate organic and inorganic matter in the metropolitan area of São Paulo, Brazil, Environmental Pollution, submitted

Jung, H., Wu, G., Chen, L.-W.A., Wang, X., Zhang, K., Lopez, B. (2022). Real-world tire and brake wear emissions. California Air Resources Board: Sacramento, California
https://ww2.arb.ca.gov/sites/default/files/2022-06/18RD017%20-%20Final%20Report.pdf

Wang, X., Chen, L.-W.A., Lu, M., Ho, K., Lee, S., Ho, S.S.H., Chow, J. C., Watson, J. G. (2022). Apportionment of Vehicle Fleet Emissions by Linear Regression, Positive Matrix Factorization, and Emission Modeling, Atmosphere, 13 (7), 1066
https://www.mdpi.com/2073-4433/13/7/1066

2021

Chen, L.-W.A., Chow, J. C., Wang, X., Cao, J., Mao, J., Watson, J. G. (2021). Brownness of organic aerosol over the U.S.: Evidence for seasonal photobleaching activities, Environmental Science and Technology, 55 (13), 8561-8572, 10.1021/acs.est.0c08706

Chow, J. C., Chen, L.-W.A., X. Wang, Green, M. C., Watson, J. G. (2021). Improved estimation of PM2.5 brown carbon contributions to filter light attenuation, Particuology, 56, 1-9, 10.1016/j.partic.2021.01.001
https://www.sciencedirect.com/science/article/pii/S1674200121000158

X. Wang, Chen, L.-W.A., Ho, K. F., Chan, C. S., Zhang, Z., Lee, Shuncheng, Chow, J. C., Watson, J. G. (2021). Comparison of Vehicle Emissions by EMFAC-HK Model and Tunnel Measurement in Hong Kong, Atmospheric Environment, 256, Article No. 118452. 10.1016/j.atmosenv.2021.118452

Jung, H., Wu, G., Chen, L.-W.A., Wang, X., Zhang, K. M., Lopez, B. (2021). Real-world tire and brake wear emissions – Draft Final Report, Submitted to California Air Resources Board, Sacramento, CA.

2020

Cao, J., Wang, Q. Y., Li, L., Zhang, Y., Tian, J., Chen, L.-W.A., Ho, S.S.H., Wang, X., Chow, J. C., Watson, J. G. (2020). Evaluation of the oxidation flow reactor for particulate matter emission limit certification, Atmospheric Environment, 224 (117086), 1-10, 10.1016/j.atmosenv.2019.117086

June, N., Wang, X., Chen, L.-W.A., Chow, J. C., Watson, J. G., Wang, X., Henderson, B., Zheng, Y., Mao, J. (2020). Observational constraints on ambient brown carbon with IMPROVE network observations, Environmental Science and Technology, 47 (23), 10.1029/2020GL090332

Shen, J., Zhao, Q., Cheng, Z., Huo, J., Zhu, W., Zhang, Y., Duan, Y., Wang, X., Chen, L.-W.A., Fu, Q. (2020). Evolution of source contributions during heavy fine particulate matter (PM2.5) pollution episodes in eastern China through online measurements, Atmospheric Environment, 232, Article No. 117569

Mills, G., Harris, S., Brown, T. J., Chen, L.-W.A. (2020). Climatology of wind changes and elevated fire danger over Victoria, Australia, Journal Southern Hemisphere Earth Systems Science, 10.1071/ES19043

2019

Liu, T., Chen, L.-W.A., Zhang, M., Watson, J. G., Chow, J. C., Cao, J., Chen, H., Wang, W., Zhang, J., Zhan, C., Liu, H., Zhen, J., Chen, N., Yao, R., Xiao, W. (2019). Bioaerosol concentrations and size distributions during the autumn and winter seasons in an industrial city of central China, Aerosol and Air Quality Research, 19, 1095-1104

Chen, L.-W.A., Zhang, M., Liu, T., Fortier, K., Chow, J. C., Kolberg, R., Cao, J., Lin, G., Patel, T., Cruz, P., Buttner, M., Watson, J. G. (2019). Evaluation of epifluorescence methods for quantifying bioaerosols in fine and coarse particulate air pollution, Atmospheric Environment, 213, 620-628

X. Wang, Khlystov, A. Y., Ho, K., Campbell, D. E., Chow, J. C., Kohl, S. D., Watson, J. G., Lee, Shuncheng, Chen, L.-W.A., Lu, M., Ho, S.S.H. (2019). Real-world vehicle emission characterization for the Shing Mun tunnel in Hong Kong and Ft. McHenry tunnel in the U.S.. Health Effects Insitute: Boston, MA
https://www.healtheffects.org/publication/real-world-vehicle-emissions-characterization-shing-mun-tunnel-hong-kong-and-fort

Watson, J. G., Cao, J., Chen, L.-W.A., Wang, Q. Y., Tian, J., Wang, X., Gronstal, S. B., Ho, S.S.H., Watts, A. C., Chow, J. C. (2019). Gaseous, PM2.5 mass, and speciated emission factors from laboratory chamber peat combustion, Atmos. Chem. Phys., 19, 14173-14193, 10.5194/acp-19-14173-2019

2018

Chow, J. C., Watson, J. G., Green, M. C., Wang, X., Chen, L.-W.A., Trimble, D. L., Cropper, P. M., Kohl, S. D., Gronstal, S. B. (2018). Separation of brown carbon from black carbon for IMPROVE and Chemical Speciation Network PM2.5 samples, Journal of the Air & Waste Management Association, 68 (5), 494-510, 10.1080/10962247.2018.1426653

Cui, L., X. Wang, Ho, K. F., Gao, Y., Liu, C., Ho, S.S.H., Li, H. W., Lee, S. C., Wang, X. M., Jiang, B., Huang, Y., Chow, J. C., Watson, J. G., Chen, L.-W.A. (2018). Decrease of VOC Emissions from Vehicular Emissions in Hong Kong from 2003 to 2015: Results from a Tunnel Study, Atmospheric Environment, 177, 64-74, 10.1016/j.atmosenv.2018.01.020

X. Wang, Ho, K., Chow, J. C., Kohl, S. D., Chan, C., Cui, L., Lee, Shuncheng, Chen, L.-W.A., Ho, S.S.H., Cheng, Y., Watson, J. G. (2018). Hong Kong vehicle emission changes from 2003 to 2015 in the Shing Mun Tunnel, Aerosol Science and Technology, 52, 1085-1098, 10.1080/02786826.2018.1456650

Chow, J. C., Riggio, G. M., X. Wang, Chen, L.-W.A., Watson, J. G. (2018). Measuring the organic carbon to organic matter multiplier with thermal/optical carbon mass spectrometer analysis, Aerosol Science and Engineering, 2, 165-172

X. Wang, Khlystov, A. Y., Ho, K. F., Campbell, D. E., Chow, J. C., Kohl, S. D., Watson, J. G., Lee, Shuncheng, Chen, L.-W.A., Lu, M., Ho, S.S.H. (2018). Real-world Vehicle Emission Characterization for the Shing Mun Tunnel in Hong Kong and Ft. McHenry Tunnel in the U.S.. Health Effects Institute: Boston, MA, Draft final report.

2017

Tai, Y., Chen, L.-W.A., X. Wang, Chow, J. C., Watson, J. G. (2017). Atmospheric deposition of particles at a sensitive alpine lake: Size-segregated daily and annual fluxes from passive sampling techniques, Science of the Total Environment, 579, 1736-1744, 10.1016/j.scitotenv.2016.11.117

Yatavelli, R.L.N., Chen, L.-W.A., Knue, J. D., Samburova, V., Gyawali, M., Watts, A. C., Chakrabarty, R. K., Moosmüller, H., Hodzic, A., Wang, X., Zielinska, B. K., Chow, J. C., Watson, J. G. (2017). Emissions and partitioning of intermediate-volatility and semi-volatile polar organic compounds (I/SV-POCs) during laboratory combustion of boreal and sub-tropical peat, Aerosol Sci Eng, 1 (1), 25-32, 10.1007/s41810-017-0001-5

Ni, H., Tian, J., X. Wang, Wang, Q., Han, Y., Cao, J., Long, X., Chen, L.-W.A., Chow, J. C., Watson, J. G., Huang, R., Dusek, U. (2017). PM2.5 emissions and source profiles from open burning of crop residues, Atmospheric Environment, 169, 229-237

Watson, J. G., Chow, J. C., Tropp, R. J., Chen, L.-W.A. (2017). PMEH recommendations for the JingJinJi region of China: Emphasis on Hebei Province. Desert Research Institute: Reno, NV

Watson, J. G., Chow, J. C., Tropp, R. J., Chen, L.-W.A. (2017). PMEH recommendations for Accra, Ghana. Desert Research Institute: Reno, NV

Watson, J. G., Chow, J. C., Tropp, R. J., Chen, L.-W.A. (2017). PMEH recommendations for the National Capital Region of India. Desert Research Institute: Reno, NV

Watson, J. G., Chow, J. C., Tropp, R. J., Chen, L.-W.A. (2017). PMEH recommendations for the Hanoi Capital Region, Vietnam. Desert Research Institute: Reno, NV

Watson, J. G., Chow, J. C., Tropp, R. J., Chen, L.-W.A. (2017). PMEH recommendations for the Greater Johannesburg Area, Republic of South Africa. Desert Research Institute: Reno, NV

Watson, J. G., Chow, J. C., Tropp, R. J., Chen, L.-W.A. (2017). PMEH recommendations for Lagos, Nigeria. Desert Research Institute: Reno, NV

Watson, J. G., Chow, J. C., Tropp, R. J., Chen, L.-W.A. (2017). PMEH recommendations for the Greater Cairo Region, Egypt. Desert Research Institute: Reno, NV

X. Wang, Khlystov, A. Y., Ho, K., Campbell, D. E., Chow, J. C., Kohl, S. D., Watson, J. G., Lee, Shuncheng, Chen, L.-W.A., Lu, M., Ho, S.S.H. (2017). Real-world Vehicle Emission Characterization for the Shing Mun Tunnel in Hong Kong and Ft. McHenry Tunnel in the U.S.. Health Effects Institute: Desert Research Institute

2016

Watson, J. G., Chow, J. C., Engling, G., Chen, L.-W.A., Wang, X. (2016). Source Apportionment: Principles and MethodsChapter 3: Source apportionment: Principles and methods. In Hester, R. E., Harrison, R. M., Querol, X. (Eds.), Airborne Particulate Matter: Sources, Atmospheric Processes and Health, Book 42 (Aug. 2016), 72-125. Royal Society of Chemistry: London, UK

Xu, H., Cao, J., Chow, J. C., Huang, R., Shen, Z., Chen, L.-W.A., Ho, K., Watson, J. G. (2016). Inter-annual variability of wintertime PM2.5 chemical composition in Xi’an, China: Evidences of changing source emissions, Science of the Total Environment, 545–546, 546-555
https://www.sciencedirect.com/science/article/pii/S0048969715312237

Cheng, Y., Engling, G., Moosmüller, H., Arnott, W. P., Chen, L.-W.A., Wold, C. E., Hao, W. M., He, K. (2016). Light absorption by biomass burning source emissions, Atmos. Environ., 127, 347-354

Han, Y. M., Chen, L.-W.A., Huang, R. J., Chow, J. C., Watson, J. G., Ni, H. Y., Liu, S. X., Fung, K., Shen, Z. X., Wei, C., Wang, Q. Y., Tian, J., Zhao, Z. Z., Prevot, A. H., Cao, J. (2016). Carbonaceous aerosol in megacity Xi’an, China: Implications of thermal/optical protocol comparison, Atmos. Environ., 132 (May 2016), 58-68, 10.1016/j.atmosenv.2016.02.023

Chakrabarty, R. K., Gyawali, M., Yatavelli, R.L.N., Pandey, A., Watts, A. C., Knue, J. D., Chen, L.-W.A., Pattison, R. R., Tsibart, A. T., Samburova, V., Moosmüller, H. (2016). Brown Carbon Aerosols from Burning of Boreal Peatlands: Microphysical Properties, Emission Factors, and Implications for Direct Radiative Forcing, Atmos. Chem. Physics, 16 (5), 3033-3040, 10.5194/acp-16-3033-2016

Zhu, C., Cao, J., Xu, B., Huang, R., Wang, P., Ho, K., Shen, Z., Liu, S., Han, Y., Tie, X., Zhao, Z., Chen, L.-W.A. (2016). Black Carbon Aerosols at Mt. Muztagh Ata, a High-Altitude Location in the Western Tibetan Plateau, Aerosol and Air Quality Research, 16 (3), 752-763, 10.4209/aaqr.2015.04.0255
://WOS:000371498900024

Ho, C. C., Chan, C. C., Chio, C. P., Lai, Y. C., Chang-Chien, G. P., Chow, J. C., Watson, J. G., Chen, L.-W.A., Chen, P. C., Wu, C. F. (2016). Source Apportionment of Mass Concentration and Inhalation Risk with Long-Term Ambient PCDD/Fs Measurements in an Urban Area, Journal of Hazardous Materials, 317, 180-187, 10.1016/j.jhazmat.2016.05.059

2015

Chen, L.-W.A., Chow, J. C., X. Wang, Robles, J. A., Sumlin, B. J., Lowenthal, D. H., Zimmermann, R., Watson, J. G. (2015). Multi-wavelength optical measurement to enhance thermal/optical analysis for carbonaceous aerosol, Atmos.Meas.Tech.., 8, 451-461

Chen, L.-W.A., Robles, J. A., Chow, J. C., Hoekman, S.K. (2015). Renewable hydrogen production from bio-oil in an aerosol pyrolysis system, Procedia Engineering, 102, 1867-1876

Chow, J. C., X. Wang, Sumlin, B. J., Gronstal, S. B., Chen, L.-W.A., Trimble, D. L., Kohl, S. D., Mayorga, S. R., Riggio, G. M., Hurbain, P. R., Johnson, M. M., Zimmermann, R., Watson, J. G. (2015). Optical Calibration and Equivalence of a Multiwavelength Thermal/Optical Carbon Analyzer, Aerosol Air Qual. Res., 15, 1145-1159

Chow, J. C., Yang, X., X. Wang, Kohl, S. D., Hurbain, P. R., Chen, L.-W.A., Watson, J. G. (2015). Characterization of Ambient PM10 Bioaerosols in a California Agricultural Town, Aerosol Air Qual. Res., 15 (4), 1433-1447, 10.4209/aaqr.2014.12.0313

Diab, J., Streibel, T., Cavalli, F., Lee, S. C., Saathoff, H., Mamakos, T., Chow, J. C., Chen, L.-W.A., Watson, J. G., Sippula, O., Zimmermann, R. (2015). Hyphenation of a EC/OC thermal-optical carbon analyzer to photo ionization time-of-flight mass spectrometry: A new off-line aerosol mass spectrometric approach for characterization of primary and secondary particulate matter, Atmos. Meas. Tech., 8, 3337-3353

Chow, J. C., Lowenthal, D. H., Chen, L.-W.A., Wang, X., Watson, J. G. (2015). Mass reconstruction methods for PM2.5: A review, Air Quality, Atmosphere and Health, 8, 243-263

Tian, J., Chow, J. C., Cao, J. J., Han, Y. M., Ni, H. Y., Chen, L.-W.A., Wang, X., Huang, R. J., Moosmüller, H., Watson, J. G. (2015). A biomass combustion chamber: Design, evaluation, and a case study of wheat straw combustion emission tests, Aerosol Air Qual. Res., 15, 2104-2114

Zhu, C., Cao, J., Ho, K. F., Chen, L.-W.A., Huang, R. J., Li, H., Shen, Z. X., Chow, J. C., Watson, J. G., Su, X. L., Wang, Q. Y., Xiao, S. (2015). The optical properties of urban aerosol in northern China: A case study at Xi’an, Atmospheric Research, 160 (0), 59-67

Ni, H., Han, Y. M., Cao, J., Chen, L.-W.A., Tian, J., Wang, X., Chow, J. C., Watson, J. G., Wang, Q. Y., Want, P., Li, H., Huang, R. J. (2015). Emission characteristics of carbonaceous particles and trace gases from open burning of crop residue in China, Atmospheric Environment, 123 (Part B), 399-406

Watson, J. G., Chow, J. C., Lowenthal, D. H., Chen, L.-W.A., Shaw, S., Edgerton, E. S., Blanchard, C. L. (2015). PM2.5 source apportionment with organic markers in the Southeastern Aerosol Research and Characterization (SEARCH) Study, Journal of the Air & Waste Management Association, 65 (9), 1104-1108

Chakrabarty, R. K., Gyawali, M., Yatavelli, R.L.N., Pandey, A., Watts, A. C., Knue, J. D., Chen, L.-W.A., Pattison, R. R., Tsibart, A. T., Samburova, V., Moosmüller, H. (2015). Dominance of brown carbon in aerosol emissions from burning of boreal peatlands, Atmos. Chem. Physics, Discuss., 15, 28793-28813

Chen, L.-W.A., Tai, Y., X. Wang, Holms, H., Chow, J. C., Watson, J. G. (2015). Evaluating Atmospheric Deposition of Particulate Matter in the Lake Tahoe Basin, Prepared by Desert Research Institute, Reno,NV, for USDA Forest Service, pp. 79: December 31, 2015

2014

Cheng, Z., Wang, S., Fu, X., Watson, J. G., Jiang, J., Fu, Q., Chen, L.-W.A., Xu, B., Yu, J., Chow, J. C., Hao, J. (2014). Impact of biomass burning on haze pollution in the Yangtze River Delta, China: A case study of summer in 2011, Atmos. Chem. Phys., 4573-4585

Chen, L.-W.A., Malamakal, T., Wang, X., Green, M. C., Chow, J. C., Watson, J. G. (2014). Evaluation of prescribed burning emissions and impacts on air quality in the Lake Tahoe basin. Desert Research Institute: Reno,NV
https://www.fs.fed.us/psw/partnerships/tahoescience/documents/p076_PrescribedBurningReport_20141231.pdf

2013

Green, M. C., Chow, J. C., Chang, M. C., Chen, L.-W.A., Kuhns, H. D., Etyemezian, V. R., Watson, J. G. (2013). Source apportionment of atmospheric particulate carbon in Las Vegas, Nevada, USA, Particuology, 11, 110-118

Han, Y. M., Chen, L.-W.A., Cao, J., Fung, K. K., Ho, K. F., Yan, B. Z., Zhan, C. L., Liu, S. X., Wei, C., An, Z. S. (2013). Thermal/optical methods for elemental carbon quantification in soils and urban dusts: Equivalence of different analysis protocols, PLoS ONE, 8 (12), e83462, 10.1371/journal.pone.0083462

Malamakal, T., Chen, L.-W.A., X. Wang, Green, M. C., Gronstal, S. B., Chow, J. C., Watson, J. G. (2013). Prescribed burn smoke impact in the Lake Tahoe Basin: model simulation and field verification, Int. J. Environ. Pollu., 52 (3/4), 225-243

Wang, Q., Cao, J., Tao, J., Li, N., Su, X., Chen, L.-W.A., Wang, P., Shen, Z., Liu, S., Dai, W. (2013). Long-term trends in visibility and at Chengdu, China, PLOS ONE, 8 (7), e6889r, doi: 10.1371/journal.pone.0068894

Watson, J. G., Chow, J. C., Tropp, R. J., Wang, X., Kohl, S. D., Chen, L.-W.A. (2013). Standards and traceability for air quality measurements: Flow rates and gaseous pollutants, Mapan-J. Metrology Soc. India, 28 (3), 167-179

Zhao, Z., Cao, J., Shen, Z., Xu, B., Zhu, C., Chen, L.-W.A., Su, X., Liu, S., Han, Y., Wang, G., Ho, K. (2013). Aerosol particles at a high‐altitude site on the Southeast Tibetan Plateau, China: implications for pollution transport from South Asia, J. Geophys. Res.-Atmos., 118 (19), 11360-11375, 10.1002/jgrd.50599

Chow, J. C., Lowenthal, D. H., Watson, J. G., Chen, L.-W.A. (2013). Source apportionment of SEARCH PM2.5 measurements with organic markers. Desert Research Institute: Reno, NV

2012

Chen, L.-W.A., Chow, J. C., Watson, J. G., Schichtel, B. (2012). Consistency of long-term elemental carbon trends from thermal and optical measurements in the IMPROVE network, Atmospheric Measurement Techniques, 5, 2329-2338

X. Wang, Watson, J. G., Chow, J. C., Kohl, S. D., Chen, L.-W.A., Sodeman, D., Legge, A., Percy, K. (2012). Measurement of real-world stack emissions with a dilution sampling systemChapter 8: . In , Alberta Oil Sands: Energy, Industry, and the Environment, 171-192. Elsevier Press: Amsterdam, The Netherlands

Watson, J. G., Chow, J. C., X. Wang, Kohl, S. D., Chen, L.-W.A., Etyemezian, V. R. (2012). Overview of real-world emission characterization methodsChapter 7: Amsterdam, The Netherlands. In , Alberta Oil Sands: Energy, Industry, and the Environment, 145-170

Chen, L.-W.A., Watson, J. G., Chow, J. C., DuBois, D. W., Herschberger, L. (2012). Corrigendum to ?Chemical mass balance source apportionment for combined PM2.5 measurements from U.S. non-urban and urban long-term networks ? (vol 44, pg 4908, 2010), Atmos. Environ., 51, 335

Chen, L.-W.A., Tropp, R. J., Li, W. -., Zhu, D., Chow, J. C., Watson, J. G., Zielinska, B. K. (2012). Aerosol and Air Toxics Exposure in El Paso, Texas: A Pilot Study, Aerosol & Air Qual. Res., 12 (2), 169-179, 10.4209/aaqr.2011.10.0169

Green, M. C., Chen, L.-W.A., DuBois, D. W., Molenar, J. V. (2012). Fine particulate matter and visibility in the Lake Tahoe Basin: Chemical characterization, trends, and source Apportionment, J. Air & Waste Manage. Assoc., 62 (8), 953-965

Gyawali, M., Arnott, W. P., Zaveri, R. A., Song, C., Moosmüller, H., Liu, L., Mishchenko, M. I., Chen, L.-W.A., Green, M. C., Watson, J. G., Chow, J. C. (2012). Photoacoustic Optical Properties at UV, VIS, and Near IR Wavelengths for Laboratory Generated and Winter Time Ambient Urban Aerosols, Atmos. Chem. Phys., 12, 2587-2601, 10.5194/acp-12-2587-2012

Watson, J. G., Chow, J. C., Chen, L.-W.A., Kohl, S. D., Casuccio, G. S., Lersch, T. L., Langston, R. (2012). Elemental and morphological analyses of filter tape deposits from a beta attenuation monitor, Atmos. Res., 106, 181-189

Chen, L.-W.A., Watson, J. G., Chow, J. C., Green, M. C., Inouye, D., Dick, K. (2012). Wintertime particulate pollution episodes in an urban valley of the western U.S.: A case study, Atmos. Chem. Phys., 12, 10051-10064, 10.5194/acp-12-10051-2012
https://www.atmos-chem-phys.net/12/10051/2012/acp-12-10051-2012.pdf

Watson, J. G., Chow, J. C., Lowenthal, D. H., Chen, L.-W.A., Wang, X. (2012). Reformulation of PM 2.5 mass reconstruction assumptions for the San Joaquin Valley: Literature review. Desert Research Institute: Reno, NV

Watson, J. G., Chow, J. C., Lowenthal, D. H., Chen, L.-W.A., Wang, X. (2012). Reformulation of PM 2.5 mass reconstruction assumptions for the San Joaquin Valley. Desert Research Institute: Reno, NV
https://www.researchgate.net/publication/234113065_Reformulation_of_PM_2.5_Mass_Reconstruction_Assumptions_for_the_San_Joaquin_Valley

2011

Koracin, D. R., Vellore, R., Lowenthal, D. H., Watson, J. G., Koracin, J., McCord, T. E., DuBois, D. W., Chen, L.-W.A., Kumar, N., Knipping, E. M., Wheeler, N. J., Craig, K., Reid, S. (2011). Regional source identification using Lagrangian stochastic particle dispersion and HYSPLIT backward-trajectory models, J Air & Waste Manage Assoc, 61, 660-672, 10.3155/1047-3289.61.6.660

Watson, J. G., Chow, J. C., Chen, L.-W.A., Lowenthal, D. H., Fujita, E. M., Kuhns, H. D., Sodeman, D. A., Campbell, D. E., Moosmüller, H., Zhu, D., Motallebi, N. (2011). Particulate Emission Factors for Mobile Fossil Fuel and Biomass Combustion Sources, Sci Total Environ, 409 (12), 2384-2396, doi:10.1016/j.scitotenv.2011.02.041

Chen, L.-W.A., Watson, J. G., Chow, J. C., DuBois, D. W., Herschberger, L. (2011). PM2.5 source apportionment: Reconciling receptor models for U.S. non-urban and urban long-term networks, J.Air Waste Manage.Assoc., 1204-1217

Chow, J. C., Watson, J. G., Chen, L.-W.A., Lowenthal, D. H., Motallebi, N. (2011). PM2.5 source profiles for black and organic carbon emission inventories, Atmos.Environ., 5407-5414

Chow, J. C., Watson, J. G., Robles, J. A., Wang, X., Chen, L.-W.A., Trimble, D. L., Kohl, S. D., Tropp, R. J., Fung, K. (2011). Quality assurance and quality control for thermal/optical analysis of aerosol samples for organic and elemental carbon, Anal.Bioanal.Chem., 3141-3152

Watson, J. G., Chow, J. C., Chen, L.-W.A., Green, M. C., Kohl, S. D. (2011). Wintertime PM 2.5 source contributions in Reno, NV. Desert Research Institute: Reno, NV
https://www.researchgate.net/publication/234113065_Reformulation_of_PM_2.5_Mass_Reconstruction_Assumptions_for_the_San_Joaquin_Valley

Koracin, D. R., Vellore, R., Lowenthal, D. H., Watson, J. G., Koracin, J., McCord, T. E., DuBois, D. W., Chen, L.-W.A., Kumar, N., Knipping, E. M., Wheeler, N. J., Craig, K., Reid, S. (2011). Regional Source Identification Using Lagrangian Stochastic Particle Dispersion and HYSPLIT Backward-Trajectory Models, J. Air Waste Manage. Assoc., 61 (6), 660-672, 10.3155/1047-3289.61.6.660

2010

Chen, L.-W.A., Watson, J. G., Chow, J. C., DuBois, D. W., Herschberger, L. (2010). Chemical mass balance source apportionment for combined PM2.5 measurements from US non-urban and urban long-term networks, Atmos Environ, 44 (38), 4908-4918

Chakrabarty, R. K., Moosmüller, H., Chen, L.-W.A., Lewis, K. J., Arnott, W. P., Mazzoleni, C., Dubey, M. K., Wold, C. E., Hao, W. M., Kreidenweis, S. M. (2010). Brown Carbon in Tar Balls from Smoldering Biomass Combustion, Atmos Chem Phys, 10, 6363-6370

Chen, L.-W.A., Verburg, P.S.J., Shackelford, A., Zhu, D., Susfalk, R. B., Chow, J. C., Watson, J. G. (2010). Moisture effects on carbon and nitrogen emission from burning of wildland biomass, Atmos Chem Phys, 10 (1-9), 6617-6625, doi:10.5194/acp-10-6617-2010

Chen, L.-W.A., Tropp, R. J., Zhu, D., Chow, J. C., Zielinska, B. K., Watson, J. G. (2010). Characterizing and assessing the associations of hazardous air pollutant emissions with environmental indicators for the El Paso-Cd. Juarez Border Region. Desert Research Institute

Chen, L.-W.A., Lowenthal, D. H., Watson, J. G., Koracin, D. R., Kumar, N., Knipping, E., Wheeler, N., Craig, K., Reid, S. (2010). Toward effective source apportionment using positive matrix factorization: Experiments with simulated PM2.5 data, J.Air Waste Manage.Assoc., 43-54

Chen, L.-W.A., Watson, J. G., Chow, J. C., DuBois, D. W., Herschberger, L. (2010). Chemical mass balance source apportionment for combined PM2.5 measurements from U.S. non-urban and urban long-term networks, Atmos.Environ., 4908-4918

Chow, J. C., Watson, J. G., Chen, L.-W.A., Rice, J., Frank, N. (2010). Quantification of PM2.5 organic carbon sampling artifacts in US networks, Atmos.Chem.Phys., 5223-5239

Chow, J. C., Watson, J. G., Lowenthal, D. H., Chen, L.-W.A., Motallebi, N. (2010). Black and organic carbon emission inventories: Review and application to California, J.Air Waste Manage.Assoc., 60 (4), 497-507

Lowenthal, D. H., Watson, J. G., Koracin, D. R., Chen, L.-W.A., DuBois, D. W., Vellore, R., Kumar, N., Knipping, E., Wheeler, N., Craig, K., Reid, S. (2010). Evaluation of regional scale receptor modeling, J.Air Waste Manage.Assoc., 60 (1), 26-42

Watson, J. G., Chow, J. C., Chen, L.-W.A., Wang, X. (2010). Measurement system evaluation for fugitive dust emissions detection and quantification. Desert Research Institute: Reno, NV
https://www.researchgate.net/publication/235341860_Measurement_system_evaluation_for_fugitive_dust_emissions_detection_and_quantification?ev=prf_pub

Chen, L.-W.A., Lowenthal, D. H., Watson, J. G., Koracin, D. R., Kumar, N., Knipping, E. M., Wheeler, N., Craig, K., Reid, S. (2010). Toward Effective Source Apportionment Using Positive Matrix Factorization: Experiments with Simulated PM2.5 Data, J. Air Waste Manage. Assoc., 60 (1), 43-54, 10.3155/1047-3289.60.1.43

2009

Chow, J. C., Watson, J. G., Doraiswamy, P., Chen, L.-W.A., Sodeman, D. A., Lowenthal, D. H., Arnott, W. P., Motallebi, N. (2009). Aerosol light absorption, black carbon, and elemental carbon measurements at the Fresno Supersite, California, Atmos Res, 93 (4), 874-887

Chow, J. C., Watson, J. G., Lowenthal, D. H., Chen, L.-W.A. (2009). Climate change – Characterization of black carbon and organic carbon air pollution emissions and evaluation of measurement methods Phase II: Characterization of black carbon and organic carbon source emissions. Desert Research Institute

Watson, J. G., Chow, J. C., Chen, L.-W.A., Frank, N. (2009). Methods to assess carbonaceous aerosol sampling artifacts for IMPROVE and other long-term networks, J.Air Waste Manage.Assoc., 59 (8), 898-911

Melero, A., Parra.M., Rodriquez-Hefner, E., Chen, L.-W.A., Tropp, R. J., Zhu, D., Chow, J. C., Zielinska, B. K., Watson, J. G., Li, W. (2009). Characterizing and assessing the associations of hazardous air pollutant emissions with environmental indicators for the El Paso-Cd. Juarez border region. City of El Paso Environmental Services Department

2008

Watson, J. G., Chen, L.-W.A., Chow, J. C., Doraiswamy, P., Lowenthal, D. H. (2008). Source apportionment: findings from the U.S. Supersite Program, J. Air & Waste Manage. Assoc., 58, 256-288

Chow, J. C., Watson, J. G., Chen, L.-W.A., Trimble, D. L., Ho, S.S.H., Veropoulos, K. (2008). Methods to assess carbonaceous aerosol sampling artifacts for IMPROVE and other long-term networks. Desert Research Institute

Chow, J. C., Doraiswamy, P., Watson, J. G., Chen, L.-W.A., Ho, S.S.H., Sodeman, D. (2008). Advances in integrated and continuous measurements for particle mass and chemical composition, J.Air Waste Manage.Assoc., 58 (2), 141-163

Watson, J. G., Chen, L.-W.A., Chow, J. C., Lowenthal, D. H., Doraiswamy, P. (2008). Source apportionment: Findings from the U.S. Supersite Program, J.Air Waste Manage.Assoc., 58 (2), 265-288

Watson, J. G., Chow, J. C., Chen, L.-W.A., DuBois, D. W., Kohl, S. D., Trimble, D. L. (2008). Monitoring and data analysis for the Minnesota Particulate Matter 2.5 (PM2.5) Study. Desert Research Institute

Watson, J. G., Chow, J. C., Chen, L.-W.A., DuBois, D. W. (2008). Receptor modeling for the Minnesota Particulate Matter 2.5 (PM2.5) Study. Desert Research Institute

2007

Chow, J. C., Watson, J. G., Lowenthal, D. H., Chen, L.-W.A., Zielinska, B. K., Rinehart, L. R., Magliano, K. L. (2007). Evaluation of Organic Markers for Chemical Mass Balance Source Apportionment at the Fresno Supersite, Atmos. Chem. Phys., 7 (7), 1741-1754

Chen, L.-W.A., Watson, J. G., Chow, J. C., Magliano, K. (2007). Quantifying PM 2.5 source contributions for the San Joaquin Valley with multivariate receptor models, Environ.Sci.Technol., 41, 2818-2826

Chen, L.-W.A., Moosmüller, H., Arnott, W. P., Chow, J. C., Watson, J. G., Susott, R., Babbitt, R., Wold, C., Lincoln, E., Hao, W. (2007). Emissions from laboratory combustion of wildland fuels: Emission factors and source profiles, Environ.Sci.Technol., 41, 4317-4325

Chow, J. C., Watson, J. G., Doraiswamy, P., Chen, L.-W.A., Tropp, R. J. (2007). Rilevamento, Modellistica, Aspetti Normativi ed Effetti Sulla Salute del Particolato Atmosferico (In Italian)Chapter 8: . In Cernuschi, S., Giugliano, M., Grosso, M., Lonati, G. (Eds.), Il Particolato Fine in Atmosfera, 139-156. CIPA SRL: CIPA SRL, Milan Italy

Chow, J. C., Watson, J. G., Chen, L.-W.A., Chang, M., Robinson, N. F., Trimble, D. L., Kohl, S. D. (2007). The IMPROVE: A temperature protocol for thermal/optical carbon analysis: Maintaining consistency with a long-term database, J.Air Waste Manage.Assoc., 57, 1014-1023

Watson, J. G., Chow, J. C., Chen, L.-W.A., Kohl, S. D. (2007). Non-destructive XRF and SEM analyses on beta attenuation filters for elemental concentrations at the Craig Road monitor. Desert Research Institute

Chow, J. C., Watson, J. G., Lowenthal, D. H., Chen, L.-W.A., Zielinska, B. K., Mazzoleni, L., Magliano, K. (2007). Evaluation of organic markers for chemical mass balance source apportionment at the Fresno supersite, Atmos.Chem.Phys., 1741-1754. 7

2006

Chow, J. C., Watson, J. G., Lowenthal, D. H., Chen, L.-W.A., Magliano, K. L. (2006). Particulate Carbon Measurements in California’s San Joaquin Valley, Chemosphere, 62 (3), 337-348

Chow, J. C., Watson, J. G., Lowenthal, D. H., Chen, L.-W.A., Zielinska, B. K., Rinehart, L. R., Magliano, K. L. (2006). Evaluation of organic markers for chemical mass balance source apportionment at the Fresno Supersite, Atmos Chem Phys Discuss, 6 (10), 341-10-372

Chen, L.-W.A., Moosmüller, H., Arnott, W. P., Watson, J. G. (2006). Novel approaches to measure diesel emissions, J. Mine Ventilation Soc. South Africa, 59 (April/June), 40-45

Chow, J. C., Watson, J. G., Lowenthal, D. H., Chen, L.-W.A., Tropp, R. J., Park, K., Magliano, K. (2006). PM2.5 and PM10 mass measurements in California’s San Joaquin Valley, Aerosol Sci.Technol., 40, 796-810

Chen, L.-W.A., Moosmüller, H., Arnott, W. P., Chow, J. C., Watson, J. G., Susott, R., Babbitt, R., Wold, C., Lincoln, E., Hao, W. (2006). Particle emissions from laboratory combustion of wildland fuels: In situ optical and mass measurements, Geophys.Res.Lett., 33 (4), L04803, 4 pgs. 10.1029/2005GL024838

Chow, J. C., Watson, J. G., Doraiswamy, P., Chen, L.-W.A., Tropp, R. J. (2006). PM measurements, modeling regulatory status, and health effectsChapter 8: . In Giugliano, M., Cernuschi, S. (Eds.), Il Particolato Fine in Atmosfera: 60th Corso di aggiornamento in Ingegneria Sanitaria-Ambientale, 8-1-8-17. Politecnico di Milano: Politecnico di Milano, Milan, Italy

Chow, J. C., Chen, L.-W.A., Watson, J. G., Lowenthal, D. H., Magliano, K., Turkiewicz, K., Lehrman, D. (2006). PM2.5 chemical composition and spatiotemporal variability during the California Regional PM10/PM2.5 Air Quality Study (CRPAQS), J.Geophys Res.- Atmospheres (D10), 1-17. 111

Chow, J. C., Watson, J. G., Chen, L.-W.A., Ho, S.S.H., Koracin, D. R., Zielinska, B. K., Tang, D., Perera, F., Cao, J., Lee, Shuncheng (2006). Exposure to PM2.5 and PAHs from the Tong Liang, China, epidemiological study, J.Env.Sci.Health Part A, A41, 517-542

Chow, J. C., Watson, J. G., Doraiswamy, P., Chen, L.-W.A., Sodeman, D. A., Ho, S.S.H., Kohl, S. D., Trimble, D. L., Voepel, H. E., Fung, K. K. (2006). Climate Change — Characterization of Black Carbon and Organic Carbon Air Pollution Emissions and Evaluation of Measurement Methods. Phase I: Method Intercomparison; Volume I: Interim Report, July 11, 2006, Prepared for The California Air Resources Board and the California Environmental Protection Agency

2005

Chow, J. C., Watson, J. G., Chen, L.-W.A., Paredes-Miranda, G., Chang, M., Trimble, D. L., Fung, K. K., Zhang, H., Yu, J. (2005). Interactive comment on “refining temperature measures in thermal/optical analysis”, Atmos Chem and Physics Discuss Suppl, 5, S1-S6

Chow, J. C., Chen, L.-W.A., Lowenthal, D. H., Doraiswamy, P., Park, K., Kohl, S. D., Trimble, D. L., Watson, J. G. (2005). California Regional PM10/PM2.5 Air Quality Study (CRPAQS) – Initial data analysis of field program measurements. Desert Research Institute

Chow, J. C., Watson, J. G., Chen, L.-W.A., Paredes-Miranda, G., Chang, M., Trimble, D. L., Fung, K., Zhang, H., Yu, J. (2005). Refining temperature measures in thermal/optical carbon analysis, Atmos.Chem.Phys., 5, 2961-2972

Chow, J. C., Watson, J. G., Louie, P., Chen, L.-W.A., Sin, D. (2005). Comparison of PM2.5 carbon measurement methods in Hong Kong, China, Environ.Poll., 137, 334-344

Chow, J. C., Watson, J. G., Chen, L.-W.A., Paredes-Miranda, G., Chang, M., Trimble, D. L., Fung, K., Zhang, J., Yu, J. (2005). Interactive comment on “Refining temperature measures in thermal/optical carbon analysis”, Atmos.Chem.Phys.Discuss., 5, S1-S6

Louie, P., Chow, J. C., Chen, L.-W.A., Watson, J. G., Leung, G., Sin, D. (2005). PM2.5 chemical composition in Hong Kong: Urban and regional variations, Sci.Total Environ., 338, 267-281

Louie, P., Watson, J. G., Chow, J. C., Chen, L.-W.A., Sin, D., Lau, A. (2005). Seasonal characteristics and regional transport of PM2.5 in Hong Kong, Atmos.Environ., 39, 1695-1710

Watson, J. G., Chow, J. C., Chen, L.-W.A. (2005). Summary of organic and elemental carbon/black carbon analysis methods and intercomparisons, AAQR, 5, 65-102

2004

Watson, J. G., Chow, J. C., Chen, L.-W.A. (2004). Summary of methods and comparison studies for organic and elemental carbon: Implications for visibility and global warmingChapter : Summary of methods and comparison studies for organic and elemental carbon: Implications for visibility and global warming. In Pitchford, M. L., Poirot, R. L. (Eds.), Proceedings, Regional and Global Perspectives on Haze: Causes, Consequences and Controversies, Visibility Specialty Conference, 55-1-55-38. Air and Waste Management Association: Pittsburgh, PA

Chow, J. C., Watson, J. G., Chen, L.-W.A., Arnott, W. P., Moosmüller, H., Fung, K. (2004). Equivalence of Elemental Carbon by Thermal/Optical Reflectance and Transmittance with Different Temperature Protocols, Environ. Sci. Technol., 38, 4414-4422

Chen, L.-W.A., Chow, J. C., Watson, J. G., Moosmüller, H., Arnott, W. P. (2004). Modeling Reflectance and Transmittance of Quartz-Fiber Filter Samples Containing Elemental Carbon Particles: Implications for Thermal/Optical Analysis, J Aerosol Sci, 35 (6), 765-780

Chow, J. C., Watson, J. G., Chen, L.-W.A., Moosmüller, H., Arnott, W. P., Fung, K. K. (2004). Equivalence of Elemental Carbon Measured by Thermal/Optical Reflectance and Transmittance Methods with Different Temperature Protocols, Environ Sci & Techn, 38 (16), 4144-4422

Green, M. C., Chang, M., Chow, J. C., Kuhns, H. D., Chen, L.-W.A., Nussbaum, N., Nikolic, D., Arnott, W. P., Kumar, S., Etyemezian, V. R. (2004). Las Vegas carbon source apportionment study, final report. Desert Research Institute: Reno, NV

Kuhns, H. D., Chang, M., Chow, J. C., Etyemezian, V. R., Chen, L.-W.A., Nussbaum, N., Nathagoundenpalayam, S., Trimble, D. L., Kohl, S. D., MacLaren, M., Abu-Allaban, M., Gillies, J. A., Gertler, A. W. (2004). DRI Lake Tahoe Source Characterization Study. Desert Research Institute: Reno, NV

2003

Chen, L.-W.A., Doddridge, B. G., Dickerson, R. R., Ryan, W. F., Chow, J. C., Malm, W. C. (2003). Suburban Fine Particulate Matter during Mid-Atlantic Hot Summer: Sulfate versus Carbonaceous Aerosols, J. Geophys. Res., 35, 765-780

2002

Chen, L.-W.A., Doddridge, B. G., Dickerson, R. R., Chow, J. C., Henry, R. C. (2002). Origins of Fine Aerosol Mass in the Baltimore-Washington Corridor: Implications from Observation, Factor Analysis, and Ensemble Air Back Trajectory, Atmos. Environ., 36 (28), 4541-4554

Chow, J. C., Watson, J. G., Kohl, S. D., Gonzi, M., Chen, L.-W.A. (2002). Measurements and validation for the twelve month particulate matter study in Hong Kong
https://www.epd.gov.hk/epd/english/environmentinhk/air/studyrpts/files/final_version_hkepdfinalreport_rev12-12-02.pdf

Conference Proceedings

2024

Chen, L.-W.A., Chow, J. C., Wang, X.L., Mao, J., Watson, J. G. (2024). Chemical Speciation Network (CSN) Reveals Variations of Brown Carbon Concentration and Optical Property Across the United States. Air & Waste Management Association Annual Conference and Exhibition (AWMA ACE 2024): Calgary, Alberta, Canada, June 24, 2024-July 27, 2024

2023

Chen, L.-W.A., Chow, J. C., Wang, X., Watson, J. G., Mao, J. (2023). Spatiotemporal Distribution of Brown Carbon and Organic Aerosol Brownness Across the U.S. Chemical Speciation Network. 41st AAAR Annual Conference: Portland, OR, October 2, 2023-October 6, 2023

Lopez, B., Wang, X., Chen, L.-W.A., Ma, T., Mendez-Jimenez, D., Cobb, L., Frederickson, C., Fang, T., Hwang, B., Shiraiwa, M., Park, M., Park, K., Yao, Q., Yoon, S., Jung, H. (2023). Elemental Content of Brake and Tire Wear PM2.5 and PM10 at Near-Road Environments. 41st AAAR Annual Conference: Portland, OR, October 2, 2023-October 6, 2023

Watson, J. G., Wang, X., Gronstal, S. B., Lopez, B., Jung, H., Chen, L.-W.A., Ho, S.S.H., Chow, J. C., Frederickson, C., Mendez-Jimenez, D., Ma, T., Cobb, L., Yao, Q., Yoon, S., Herner, J. (2023). Non-tailpipe toxic emissions. National Sun Yat Sen University: Kaohsiung, Taiwan

2022

Chen, L.-W.A., X. Wang, Lopez, B., Jung, H., Hao, Q., Yoon, S., Herner, J. (2022). Contribution of non-exhaust vehicle emissions to near-road PM2.5 and PM10: A chemical mass balance study. 32nd CRC Real World Emissions Workshop: San Diego, California, March 13, 2022-March 17, 2022

X. Wang, Gronstal, S. B., Lopez, B., Jung, H., Chen, L.-W.A., Ho, S.S.H., Chow, J. C., Watson, J. G., Frederickson, C., Mendez-Jimenez, D., Ma, T., Cobb, L., Yao, Q., Yoon, S., Herner, J. (2022). Concentration and Chemical Characteristics of PM2.5 and PM10 near California Highways with a Focus on Non-Tailpipe Emissions. 32nd CRC Real World Emissions Workshop: San Diego, California, March 13, 2022-March 17, 2022

Wang, X., Gronstal, S. B., Lopez, B., Jung, H., Chen, L.-W.A., Ho, S.S.H., Chow, J. C., Watson, J. G., Frederickson, C., Mendez-Jimenez, D., Ma, T., Cobb, L., Yao, Q., Yoon, S. (2022). Contributions of Non-tailpipe Emissions to PM2.5 and PM10 near Highways, 2022 National Ambient Air Monitoring Conference: Pittsburgh, PA, August 22, 2022-August 25, 2022

Wang, X., Gronstal, S. B., Lopez, B., Jung, H., Chen, L.-W.A., Ho, S.S.H., Chow, J. C., Watson, J. G., Frederickson, C., Mendez-Jimenez, D., Ma, T., Cobb, L., Yao, Q., Yoon, S. (2022). Characterization of PM2.5 and PM10 near California Highways with a Focus on Non-Tailpipe Emissions, 40th AAAR Annual Conference: Raleigh, NC, October 3, 2022-October 7, 2022

2020

June, N., X. Wang, Chen, L.-W.A., Chow, J. C., Watson, J. G., Henderson, B., Zheng, Y., Mao, J. (2020). Observational Constraints on Brown Carbon (BC) with IMPROVE Network Observations. American Meteorological Society Conference: Boston, MA, January 13, 2020

2019

X. Wang, Chow, J. C., Watson, J. G., Chen, L.-W.A., Ho, K. F., Lee, Shuncheng, Cui, L. (2019). Characterization of Vehicle Emission Changes in Hong Kong from 2003 to 2015 via Tunnel Studies. 11th Asian Aerosol Conference: Hong Kong, China, May 27, 2019-May 30, 2019

X. Wang, Chow, J. C., Gronstal, S. B., Chen, L.-W.A., Green, M. C., Watson, J. G. (2019). Estimation of Brown Carbon in PM2.5 Samples from United States Long-term Networks. The Second International Workshop on Environment and Geoscience (IWEG 2019): Hangzhou, China, July 17, 2019-July 19, 2019

Chow, J. C., Watson, J. G., X. Wang, Chen, L.-W.A. (2019). Separation of PM2.5 Brown Carbon from Black Carbon using Multiwavelength Thermal/Optical Carbon Analysis. Plenary presentation, 1st International Symposium on Aerosol Characterization and Therapies: National Yat-sen University, Kaohsiung, Taiwan, October 29, 2019

Chow, J. C., Cao, J., Wang, Q., Tian, J., Watson, J. G., Wang, X., Chen, L.-W.A. (2019). Fresh and Aged Combustion Profiles for Regional Source Apportionment. Plenary presentation, 16th Cross-Strait Aerosol Technology Symposium: Luoyang, China, November 16, 2019

Chow, J. C., Watson, J. G., X. Wang, Green, M. C., Chen, L.-W.A. (2019). Separation of Brown Carbon and Black Carbon for Visibility and Climate Assessment. Seminar at University of Sao Paulo: Sao Paulo, Brazil, July 19, 2019

Chow, J. C., Watson, J. G., X. Wang, Chen, L.-W.A. (2019). Separation of Brown and Black Carbon in PM2.5 Filter Samples Using Multiwavelength Thermal/Optical Carbon Analysis. Workshop at European Aerosol Conference: Gothenburg, Sweden, August 28, 2019

Watson, J. G., Chow, J. C., X. Wang, Chen, L.-W.A. (2019). Application of Multiwavelength Measurements for Source Apportionment. Workshop at European Aerosol Conference: Gothenburg, Sweden, August 28, 2019

Watson, J. G., X. Wang, Chow, J. C., Lee, Shuncheng, Chen, L.-W.A., Ho, K. F., Ho, S.S.H. (2019). Real-World Vehicle Emission Changes over the Past Decade in Hong Kong. Hong Kong Environmental Protection District: Hong Kong, China, May 24, 2019

Watson, J. G., Chow, J. C., X. Wang, Firouzkouhi, H., Chen, L.-W.A. (2019). Microsensor Comparison and Evaluation for Determining and Managing Area Source Emissions. Asian Aerosol Conference: Hong Kong, China, May 28, 2019

Chow, J. C., Watson, J. G., X. Wang, Green, M. C., Chen, L.-W.A. (2019). Measuring and using Brown Carbon for Source Apportionment, Visibility, and Climate Assessment. Asian Aerosol Conference: Hong Kong, China, May 30, 2019

Watson, J. G., X. Wang, Chow, J. C., Lee, Shuncheng, Chen, L.-W.A., Ho, K. F., Ho, S.S.H. (2019). Change in Hong Kong Toxic Motor Vehicle Emissions Between 2003 and 2015. Asian Aerosol Conference: Hong Kong, China, May 30, 2019

2018

X. Wang, Chow, J. C., Watson, J. G., Chen, L.-W.A., Ho, K. F., Lee, Shuncheng (2018). Real-world vehicle emission characterization in a roadway tunnel in Hong Kong. Proceedings of the 28th CRC Real World Emissions Workshop: Garden Grove, CA, March 18, 2018-March 21, 2018

X. Wang, Chow, J. C., Watson, J. G., Chen, L.-W.A., Ho, K. F., Lee, Shuncheng, Cui, L. (2018). Characterization of Vehicle Emission Changes in Hong Kong from 2003 to 2015 via Tunnel Studies. AGU/CAS Joint Conference on Atmospheric PM2.5 in China: Change, Impact, Mitigation and Global Perspective: Xi’an, China, October 16, 2018-October 20, 2018

X. Wang, Chow, J. C., Daub, B. J., Gronstal, S. B., Chen, L.-W.A., Green, M. C., Watson, J. G. (2018). Estimation of Brown Carbon in PM2.5 Samples from Long-Term Networks. 10th International Aerosol Conference: St. Louis, MO, September 2, 2018-September 7, 2018

X. Wang, Chow, J. C., Daub, B. J., Gronstal, S. B., Chen, L.-W.A., Tropp, R. J., Green, M. C., Watson, J. G. (2018). Estimation of Brown Carbon in PM2.5 Samples from IMPROVE and CSN Networks. National Ambient Air Monitoring Conference: Portland, OR, August 13, 2018-August 16, 2018

Watson, J. G., X. Wang, Chow, J. C., Chen, L.-W.A., Ho, K. F., Lee, Shuncheng (2018). Control Strategy Effectiveness for Engine Exhaust. Symposium on: Source Apportionment for Air Quality Management: Shanghai Academy of Environmental Sciences (SAES) Shanghai, China, October 12, 2018

Watson, J. G., X. Wang, Chen, L.-W.A., Ho, K. F., Lee, Shuncheng (2018). Evaluating Control Strategy Effectiveness for Motor Vehicle Emission Controls. Seminar for: National University of Singapore (NUS) Environmental Research Institute: Singapore, November 12, 2018

Watson, J. G., X. Wang, Chow, J. C., Chen, L.-W.A., Ho, K. F., Lee, Shuncheng (2018). Control Strategy Effectiveness for Engine Exhaust. Workshop on: Application of Source Appointment: EPA Victoria, Melbourne, Australia, May 4, 2018

2017

Gyawali, M., Yatavelli, R.L.N., Watts, A. C., Samburova, V., Chakrabarty, R. K., Chen, L.-W.A., Arnold, I. J., Wang, X., Khlystov, A. Y., Moosmüller, H. (2017). Optical Properties of Aerosols Emitted from Laboratory Peat Combustion. Fourth Santa Fe Climate Conference: Santa Fe, NM, February 5, 2017-February 10, 2017

X. Wang, Chow, J. C., Watson, J. G., Chen, L.-W.A., Ho, K. F., Lee, Shuncheng (2017). Characterization of On-road Vehicle Emissions in a Roadway Tunnel in Hong Kong. AAAR 36th Annual Conference: Raleigh, NC, October 16, 2017

X. Wang, Khlystov, A. Y., Chow, J. C., Watson, J. G., Zielinska, B. K., Chen, L.-W.A., Ho, K. F., Lee, Shuncheng (2017). On-road Vehicle Emission Characterization from Tunnel Studies. Health Effects Institute 2017 Annual Conference: Alexandria, VA, April 30, 2017

Tropp, R. J., Chen, L.-W.A. (2017). Positive Matrix Factorization (PMF) and Data Quality Assessment of EPA’s PM2.5 Chemical Speciation Network (CSN) Derived from Six Collocated CSN Sites for the Period 2010-2013. Air & Waste Management Association Conference on Air Quality Measurement Methods and Technology: Long Beach, CA, November 7, 2017-November 9, 2017, Extended Abstract No. ME54.

X. Wang, Khlystov, A. Y., Chow, J. C., Watson, J. G., Zielinska, B. K., Chen, L.-W.A., Ho, K., Lee, Shuncheng (2017). On-road Vehicle Emission Characterization from Tunnel Studies. Health Effects Institute Sponsor Update: Desert Research Institute, Reno, NV

Chow, J. C., Watson, J. G., X. Wang, Chen, L.-W.A. (2017). Separation of Brown Carbon from Black Carbon using Multiwavelength Carbon Analyzer: Guangzhou Institute of Geochemistry, Chinese Academy of Sciences

Chow, J. C., Watson, J. G., X. Wang, Chen, L.-W.A. (2017). The Value of Multiwavelength Carbon Measurements to Separate Biomass Burning from Other Source Contributions. Fifth International Workshop on Regional Air Quality Management in Rapidly Developing Economic Regions: Guangzhou, China, November 16, 2017-November 19, 2017

Tropp, R. J., Chen, L.-W.A., Chow, J. C., Watson, J. G. (2017). Quality Assurance/Quality Control of Air Quality Measurements. PMEH Symposium on Air Quality Management, Ambient Monitoring, Laboratory Analysis, Source and Receptor Modeling, and Quality Assurance: Lagos, Nigeria

Tropp, R. J., Chen, L.-W.A., Chow, J. C., Watson, J. G. (2017). Air Quality Management Strategies: Multiple Pollutants and Multiple Effects. PMEH Symposium on Air Quality Management, Ambient Monitoring, Laboratory Analysis, Source and Receptor Modeling, and Quality Assurance: Lagos, Nigeria

Tropp, R. J., Chen, L.-W.A., Chow, J. C., Watson, J. G. (2017). How to define and establish Particulate Matter (PM) sampling systems?. PMEH Symposium on Air Quality Management, Ambient Monitoring, Laboratory Analysis, Source and Receptor Modeling, and Quality Assurance: Lagos, Nigeria

Tropp, R. J., Chen, L.-W.A., Chow, J. C., Watson, J. G. (2017). How to establish PM laboratory analysis capacity?. PMEH Symposium on Air Quality Management, Ambient Monitoring, Laboratory Analysis, Source and Receptor Modeling, and Quality Assurance: Lagos, Nigeria

Watson, J. G., X. Wang, Chow, J. C., Chen, L.-W.A., Ho, K., Lee, Shuncheng (2017). Evaluation of Vehicle Emission Changes from Hong Kong Tunnel Studies. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences Seminar: Guangzhou, China

Watson, J. G., X. Wang, Chow, J. C., Chen, L.-W.A., Ho, K., Lee, Shuncheng (2017). Evaluating Control Strategy Effectiveness for Motor Vehicle Emission Controls. Workshop on Tools for Regional Air Quality Managment: Guangzhou, China

Watson, J. G., X. Wang, Chow, J. C., Chen, L.-W.A., Ho, S.S.H., Lee, Shuncheng (2017). Evaluation of Vehicle Emission Changes in Hong Kong through Tunnel Studies. Academia Sinica Scientific Seminar: Taipei, Taiwan

Chen, L.-W.A., Chow, J. C., Watson, J. G. (2017). Source Apportionment with Source Characterization & Receptor Modeling. PMEH Symposium on Air Quality Management, Ambient Monitoring, Laboratory Analysis and Receptor Modeling and Quality Assurance: Lagos, Nigeria, July 18, 2017

Chen, L.-W.A., Cao, J., X. Wang, Watson, J. G. (2017). PM2.5 Source Apportionment Using a Hybrid Environmental Receptor Model. 110th Annual Meeting of the Air & Waste Management Association: Pittsburgh, PA

Chen, L.-W.A., Liu, T., Zhang, M., Fortier, K., Kolberg, R., Chow, J. C., Watson, J. G. (2017). Evaluation of Epifluorescence Methods for Quantifying Bioaerosol in Air Quality Samples. Conference on Air Quality Measurement Methods and Technology: Air & Waste Management Association, November 8, 2017

Chen, L.-W.A., Watson, J. G., Chow, J. C. (2017). Status of Continuous PM and Gas Monitoring and Microsensor. PMEH Symposium on Air Quality Management, Ambient Monitoring, Laboratory Analysis, Source and Receptor Modeling, and Quality Assurance: Lagos, Nigeria, July 17, 2017

Chen, L.-W.A., Watson, J. G., Chow, J. C., Tropp, R. J. (2017). Properties and Effects of Airborne PMs. PMEH Symposium on Air Quality Management, Ambient Monitoring, Laboratory Analysis, Source and Receptor Modeling, and Quality Assurance: Lagos, Nigeria

2016

Chow, J. C., Watson, J. G., X. Wang, Chen, L.-W.A. (2016). Light Absorbing Carbon from Fossil Fuel and Biomass Combustion and Its Effect on Health, Visibility, and Climate. Third Sino-U.S. Committee on the Nexus of Energy, Water, Climate and Air Pollution (NEWCAP): Beijing, China, January 22, 2016

Watts, A. C., Moosmüller, H., Samburova, V., Khlystov, A. Y., Gyawali, M., Sengupta, D., Bhattarai, C., Yatavelli, R.L.N., Chakrabarty, R. K., Arnold, I. J., Zielinska, B. K., Knue, J. D., Chow, J. C., Watson, J. G., Wang, X., Chen, L.-W.A., Tsibart, A., Engling, G. (2016). Detailed Analyses of Emissions from Peat Combustion Across Biomes. Proceedings of the 15th International Peat Congress: Sarawak, Malaysia, August 15, 2016-August 19, 2016

Chow, J. C., Watson, J. G., X. Wang, Chen, L.-W.A. (2016). Light Absorbing Carbon from Combustion Sources and Its Effect on Health and Climate. Department of Physics and L-lnstituto Nazionale di Fisico Nucleare: University of Genoa, Genoa, Italy, March 10, 2016

Chow, J. C., Watson, J. G., X. Wang, Engling, G., Chen, L.-W.A. (2016). Review of Black and Brown Carbon Measurements and Effects. 10th International Conference on Air Quality – Science and Application: Milan, Italy, March 14, 2016-March 18, 2016

X. Wang, Khlystov, A. Y., Chow, J. C., Watson, J. G., Zielinska, B. K., Chen, L.-W.A., Ho, K. F., Lee, F.S.C. (2016). On-road Vehicle Emission Characterization from Tunnel Studies. 2016 Health Effects Institute Annual Conference: Denver, CO, May 1, 2016-May 3, 2016

Watson, J. G., Chow, J. C., X. Wang, Chen, L.-W.A. (2016). Microsensor and Smartphone Uses for Air Quality Management. International Seminar on Fine and Ultrafine Particle Technology: Yancheng, China, July 26, 2016

Watson, J. G., Chow, J. C., X. Wang, Chen, L.-W.A. (2016). A Literature Survey of Smartphone Uses Relevant to Air Quality Measurement. 2016 National Ambient Air Monitoring Conference: St. Louis, MO, August 8, 2016-August 11, 2016

Watson, J. G., Chow, J. C., X. Wang, Chen, L.-W.A. (2016). Smartphone Applications for Air Quality Measurement and Management. L’lnstituto Nazionale di Fisico Nucleare: University of Genoa, Florence, Italy, August 30, 2016

Watson, J. G., Riggio, G. M., X. Wang, Chen, L.-W.A., Yang, X., Diab, J., Zimmermann, R., Chow, J. C. (2016). Advanced Detection Methods for Thermal/Optical Analysis of IMPROVE Samples. Atmospheric Optics: Aerosols, Visibility, and the Radiative Balance, A&WMA Visibility Specialty Conference: Snow King Hotel, Jackson Hole, WY, September 27, 2016-September 30, 2016

Gyawali, M., Yatavelli, R.L.N., Watts, A. C., Samburova, V., Chakrabarty, R. K., Chen, L.-W.A., Arnold, I. J., Wang, X., Khlystov, A. Y., Moosmüller, H. (2016). Optical Properties of Aerosols Emitted from Laboratory Peat Combustion. Atmospheric Optics: Aerosols, Visibility, and the Radiative Balance, A&WMA Visibility Specialty Conference: Snow King Hotel, Jackson Hole, WY, September 27, 2016-September 30, 2016

X. Wang, Riggio, G. M., Yang, X., Yatavelli, R.L.N., Chen, L.-W.A., Chow, J. C., Watson, J. G. (2016). Quantitative Off-line Particulate Matter Composition Analysis with Thermal Desorption Mass Spectrometry. 35th Annual Conference of the American Association for Aerosol Research: Portland, OR, October 17, 2016-October 21, 2016

Tropp, R. J., Chen, L.-W.A. (2016). Positive Matrix Factorization and Data Quality Assessment of EPA’s PM2.5 Chemical Speciation Network (CSN) Derived from Six Collocated CSN Sites for the Period 2010-2013. A&WMA International Specialty Conference, Atmospheric Optics: Aerosols, Visibility, and the Radiative Balance: Jackson Hole, WY, September 30, 2016

2015

Gyawali, M., Yatavelli, R.L.N., Watts, A. C., Samburova, V., Chakrabarty, R. K., Knue, J. D., Chen, L.-W.A., Arnold, I. J., Wang, X., Khlystov, A. Y., Chow, J. C., Zielinska, B. K., Watson, J. G., Moosmüller, H. (2015). Optical Properties of Aerosol Emissions from Laboratory Peat Combustion. 11th International Conference on Carbonaceous Particles in the Atmosphere: Berkeley, CA, August 10, 2015

X. Wang, Khlystov, A. Y., Chow, J. C., Watson, J. G., Zielinska, B. K., Chen, L.-W.A., Ho, F. (2015). Real-World Vehicle Emission Characterization for the Shing Mun Tunnel in Hong Kong and the Fort McHenry Tunnel in the U.S. HEI Annual Conference: Philadelphia, PA, May 3, 2015-May 5, 2015

Chow, J. C., X. Wang, Sumlin, B. J., Gronstal, S. B., Chen, L.-W.A., Watson, J. G. (2015). Adapting the IMPROVE_A protocol for multiwavelength elemental and organic carbon measurements. 11th International Conference on Carbonaceous Particles in the Atmosphere: Berkeley, CA, August 11, 2015

X. Wang, Sumlin, B. J., Mayorga, S. R., Gronstal, S. B., Chen, L.-W.A., Chow, J. C., Watson, J. G. (2015). Design and Characterization of a Multiwavelength Thermal/Optical Carbon Analyzer. 34th AAAR Annual Conference: Minneapolis, MN, October 13, 2015

Tai, Y., Chen, L.-W.A., X. Wang, Chow, J. C., Heyvaert, A. C., Knue, J. D., Watson, J. G., Zhang, M. (2015). Atmospheric Deposition of Particulate Matter in the Lake Tahoe Basin: Spatiotemporal Characteristics and Implications for Lake Clarity. Nevada Water Resources Association (NWRA) Conference: Reno, NV, January 26, 2015-January 29, 2015

Riggio, G. M., Yatavelli, R.L.N., Johnson, M. M., Yang, X., Chen, L.-W.A., Wang, X., Chow, J. C., Watson, J. G. (2015). Development of a Thermal Optical Carbon Analyzer-Quadrupole Mass Spectrometer for Quantitative Determination of Aerosol Composition from Quartz-Fiber Filters. Spring 2015 DRI Graduate Student Poster Competition: Reno, NV, May 1, 2015

Chow, J. C., Watson, J. G., X. Wang, Chen, L.-W.A. (2015). Separating Brown from Black Carbon using Multiwavelength Measurements. 12th National Aerosol Conference and 13th Cross Strait Workshop for Aerosol Science & Technology: Chongqing, China, October 23, 2015

Watson, J. G., Riggio, G. M., X. Wang, Chen, L.-W.A., Yang, X., Diab, J., Zimmermann, R., Chow, J. C. (2015). Simultaneous measurements of carbon, nitrogen, sulfur, oxygen, and hydrogen with thermal/optical analysis. 11th International Conference on Carbonaceous Particles in the Atmosphere: Berkeley, CA, August 11, 2015

Gyawali, M., Watts, A. C., Samburova, V., Chakrabarty, R. K., Knue, J. D., Chen, L.-W.A., Arnold, I. J., Wang, X., Khlystov, A. Y., Chow, J. C., Zielinska, B. K., Watson, J. G., Moosmüller, H. (2015). Optical Properties of Aerosols Emitted from Laboratory Peat Combustion. 34th Annual Conference of the American Association for Aerosol Research: Minneapolis, MN, October 12, 2015

Gyawali, M., Yatavelli, R.L.N., Watts, A. C., Samburova, V., Chakrabarty, R. K., Knue, J. D., Chen, L.-W.A., Arnold, I. J., Wang, X., Khlystov, A. Y., Chow, J. C., Zielinska, B. K., Watson, J. G., Moosmüller, H. (2015). Optical Properties of Emissions from Laboratory Peat Combustion. 15th Electromagnetic and Light Scattering (ELS) Conference: Leipzig, Germany, June 21, 2015

2014

Yatavelli, R.L.N., Chen, L.-W.A., Knue, J. D., Samburova, V., Gyawali, M., Watts, A. C., Chakrabarty, R. K., Moosmüller, H., Wang, X., Zielinska, B. K., Chow, J. C., Watson, J. G. (2014). Mass- and Energy-Based Emission Factors and Gas-Particle Partitioning of Intermediate-Volatility and Semi-Volatile Organic Compounds from Laboratory Combustion of Boreal and Sub-Tropical Peat. 33nd Annual Conference of the American Association for Aerosol Research: Orlando, FL, October 20, 2014

Yatavelli, R.L.N., Chakrabarty, R. K., Gyawali, M., Knue, J. D., Engling, G., Moosmüller, H., Rhode, D. E., Chen, L.-W.A., Wang, X., Chow, J. C., Watson, J. G. (2014). Emissions from Burning Incense and Dung: Two Unregulated Sources of Brown Carbon in Asia. 33nd Annual Conference of the American Association for Aerosol Research: Orlando, FL, October 20, 2014

Chow, J. C., Watson, J. G., X. Wang, Chen, L.-W.A., Zimmermann, R. (2014). Advances and Challenges in the Characterization of Carbonaceous Aerosol. Presented at Health-related Aerosol Characterization: Munich, Germany, April 2, 2014

X. Wang, Yang, X., Sumlin, B. J., Riggio, G. M., Robles, J. A., Chen, L.-W.A., Yatavelli, R.L.N., Chow, J. C., Watson, J. G. (2014). Enhanced Thermal/Optical Characterization of Aerosol Elemental, Molecular, and Optical Properties. 33rd AAAR Annual Conference: Orlando, FL, October 20, 2014

Gyawali, M., Chakrabarty, R. K., Yatavelli, R.L.N., Chen, L.-W.A., Knue, J. D., Samburova, V., Watts, A. C., Moosmüller, H., Arnott, W. P., Wang, X., Zielinska, B. K., Chow, J. C., Watson, J. G., Tsibart, A. (2014). Strong Wavelength Dependence of Aerosol Light Absorption from Peat Combustion. Poster presentation at the 2014 AGU Fall Meeting: San Francisco, CA, December 15, 2014

Chen, L.-W.A., Malamakal, T., X. Wang, Green, M. C., Chow, J. C., Watson, J. G. (2014). Evaluation of prescribed burning emissions and impacts on air quality in the Lake Tahoe basin. Proceedings of the Mountain Observatories 2014: Reno, NV, July 16, 2014

Chen, L.-W.A., Chow, J. C., Watson, J. G. (2014). Trends Analysis for Elemental Carbon (EC) in the U.S. IMPROVE Chemical Network. Invited talk. Wood Buffalo Environmental Association (WBEA)-Desert Research Institute Workshop: Reno, NV, October 20, 2014

Chow, J. C., Watson, J. G., X. Wang, Trimble, D. L., Kohl, S. D., Chen, L.-W.A. (2014). IMPROVE Carbon Analysis. The IMPROVE Steering Committee Meeting: Cape Romain NWR, SC, October 15, 2014

Chow, J. C., Watson, J. G., X. Wang, Trimble, D. L., Kohl, S. D., Sumlin, B. J., Gronstal, S. B., Mayorga, S. R., Chen, L.-W.A. (2014). Equivalence in OC and EC between Single- and Multi-wavelength Carbon Analyzers. The IMPROVE Steering Committee Meeting: Cape Romain, NWR, SC, October 15, 2014

Chow, J. C., Watson, J. G., X. Wang, Kohl, S. D., Sumlin, B. J., Gronstal, S. B., Mayorga, S. R., Chen, L.-W.A. (2014). Equivalence in OC and EC between Single- and Multi-wavelength Carbon Analyzers. Desert Research Institute Science Talks: Reno, NV, October 27, 2014

Chow, J. C., Watson, J. G., X. Wang, Kohl, S. D., Sumlin, B. J., Gronstal, S. B., Mayorga, S. R., Chen, L.-W.A., Trimble, D. L. (2014). DRI Model 2015 Thermal/Optical Carbon Analyzer. Desert Research Institute: Reno, NV, October 28, 2014

Johnson, M. M., Yatavelli, R.L.N., Chen, L.-W.A., Gyawali, M., Arnott, W. P., Wang, X., Chakrabarty, R. K., Moosmüller, H., Watson, J. G., Chow, J. C. (2014). Multi-Wavelength Characterization of Brown and Black Carbon from Filter-Based Samples. 2014 AGU Fall Meeting: San Francisco, CA, December 15, 2014

Knue, J. D., Yatavelli, R.L.N., Chen, L.-W.A., Samburova, V., Gyawali, M., Watts, A. C., Chakrabarty, R. K., Moosmüller, H., Wang, X., Zielinska, B. K., Chow, J. C., Watson, J. G., Tsibart, A. (2014). A Comparison of Mass-based Emission Factors from Laboratory Combustion of Boreal and Sub-Tropical Peat. 2014 AGU Fall Meeting: San Francisco, CA, December 15, 2014

Sumlin, B. J., Chow, J. C., Watson, J. G., Wang, X., Gronstal, S. B., Chen, L.-W.A., Trimble, D. L. (2014). Development of a Thermal/Optical Carbon Analyzer with Multiple-Wavelength Capabilities. Proceedings of the 2014 AGU Fall Meeting: San Francisco, CA, December 15, 2014

Tai, Y., Chen, L.-W.A., X. Wang, Knue, J. D., Zhang, M., Watson, J. G. (2014). Long-term Monitoring and Characterization of Atmospheric Deposition of Particulate Matter in the Lake Tahoe Basin. Proceedings of the Mountain Observatories 2014: Reno, NV, July 16, 2014

X. Wang, Chow, J. C., Watson, J. G., Chen, L.-W.A. (2014). Enhanced Thermal/Optical Characterization of Aerosol Elemental, Molecular, and Optical Properties. Presented at The 7th World Congress on Particle Technology: Beijing, China, May 20, 2014

Watson, J. G., Chow, J. C., X. Wang, Chen, L.-W.A., Zimmermann, R. (2014). Real-world vs. Compliance Source Testing: Getting More Information for Less Money. Presented at the 9th International Conference on Air Quality–Science and Application: Garmisch-Partenkirchen, Germany, March 25, 2014

Watson, J. G., Chow, J. C., X. Wang, Chen, L.-W.A., Zimmermann, R. (2014). Advances in Multi-sample Characterization of Carbonaceous and Optical Properties in Atmospheric Aerosols. Presented at the Analytica Conference 2014: Munich, Germany, April 1, 2014

Watson, J. G., Chen, L.-W.A., Chow, J. C., Wang, X., Sumlin, B. J., Lowenthal, D. H., Robles, J. A., Zimmermann, R. (2014). Multi-wavelength optical measurement to enhance thermal/optical analysis for carbonaceous aerosol. Proceedings of the International Aerosol Conference: Busan, Korea, August 29, 2014

Watson, J. G., Chow, J. C., Chen, L.-W.A., Wang, X., Sumlin, B. J. (2014). Multi-wavelength optical calibration of thermal/optical analyzer and potential applications. Proceedings of the IMPROVE Steering Committee Meeting: Cape Romain NWR, SC, October 15, 2014

2013

Chen, L.-W.A., Han, Y. M., Robles, J. A., Chow, J. C., Cao, J., Watson, J. G. (2013). Black Carbon in Dust and Geological Material: Reconciling Thermal/Optical and Spectral Quantification Methods. 2013 Air Quality Measurement Methods and Technology Conference: Sacramento, CA, November 19, 2013-November 21, 2013

Chen, L.-W.A., Chow, J. C., Watson, J. G., Schichtel, B. A. (2013). Consistency of Long-term Black Carbon Trends from Thermal and Optical Measurements in the U.S. IMPROVE Network. 2013 Annual European Aerosol Conference (EAC): Prague, Czech Republic, September 1, 2013-September 6, 2013

Chow, J. C., Watson, J. G., Chen, L.-W.A., Lowenthal, D. H. (2013). Effects of Black and Organic Carbon and Emission Inventory Development. The Eastern Sierra Chapter, Air & Waste Management Association: held at DRI, Reno, NV, April 5, 2013

Chen, L.-W.A., X. Wang, Yang, X., Riggio, G. M., Lowenthal, D. H., Watson, J. G., Chow, J. C. (2013). Mass Spectrometric Profiles of Combustion Aerosols for Chemical Mass Balance Source Apportionment. GAef Workshop for Fossil Fuel and Biomass Combustion: Chemical Properties, Transformation, and Health Effects: Prague, Czech Republic, August 31, 2013-September 1, 2013

Chow, J. C., Watson, J. G., Chen, L.-W.A., Lowenthal, D. H. (2013). Effects of Carbonaceous Aerosol on Climate, Visibility, Air Pollution, and Human Health. Presented at National Tsing Hua University: at Hsinchu City, Taiwan, April 16, 2013

Chow, J. C., Watson, J. G., Chen, L.-W.A., Green, M. C. (2013). Meteorological and Chemical Characteristics of Wintertime PM Episodes in an Urban Valley of the Western U.S.. Presented at East China University of Science and Technology: Shanghai, China, September 27, 2013

Robles, J. A., Chen, L.-W.A., X. Wang, Yang, X., Watson, J. G., Chow, J. C. (2013). Multi-wavelength Reflectance and Transmittance Measurements by Thermal/Optical Analysis of Particulate Matter on Quartz-Fiber Filters. Presented at American Chemical Society National Meeting and Exposition: New Orleans, LA, April 7, 2013

Tropp, R. J., X. Wang, Watson, J. G., Chow, J. C., Kohl, S. D., Chen, L.-W.A. (2013). Particulate Matter Standards and Traceability for the Quality Assurance and Quality Control of Air Quality Measurements. . In Proceedings of Air Quality Measurement Methods and Technology, Air & Waste Management Association: Sacramento, CA, November 19, 2013

Tropp, R. J., Watson, J. G., Chow, J. C., Wang, X., Kohl, S. D., Chen, L.-W.A. (2013). The Importance of Standards and Traceability for the Quality Assurance and Quality Control of Air Quality Measurements. In Proceedings of the 16th International Union of Air Pollution prevention and Environmental Protection Associations (IUAPPA) Congress: Cape Town, South Africa, September 29, 2013-October 4, 2013

Chow, J. C., Watson, J. G., Tropp, R. J., Wang, X., Kohl, S. D., Chen, L.-W.A. (2013). Standards and Traceability for Multi-pollutant Air Quality Measurements. Presented at The Workshop on PM2.5 and Multi-pollutant/Multi-effect Air Quality Management, National Cheng Kung University: Tainan, Taiwan, April 16, 2013

Yang, X., Robles, J. A., X. Wang, Chen, L.-W.A., Watson, J. G., Chow, J. C., Fung, K. K. (2013). CHNS analysis of aerosols on a modified thermal/optical carbon analyzer: System setup and calibration protocols. Paper # 70006, In Proceedings AWMA’s 106th Annual Conference and Exhibition: Chicago, IL, June 25, 2013

Chen, L.-W.A. (2013). Aerosol Black and Organic Carbon Measurement: State of Science and Future Directions. Invited Plenary Talk. The 11th China Aerosol Conference and 10th Cross-Strait Aerosol Conference: Wuhan, China, May 16, 2013

Yang, X., Chen, L.-W.A., Riggio, G. M., Yatavelli, R.L.N., Wang, X., Robles, J. A., Watson, J. G., Chow, J. C. (2013). Aerosol analysis using a thermal-desorption mass spectrometer (TD-MS) modified from a conventional carbon analyzer. In Proceedings, American Association for Aerosol Research (AAAR) 32nd Annual Meeting: Portland, OR, September 30, 2013-October 4, 2013

Watson, J. G., Chow, J. C., Tropp, R. J., Wang, X., Kohl, S. D., Chen, L.-W.A. (2013). Standards and Traceability for Multi-pollutant Air Quality Measurements. Presented at The Workshop on PM2.5 and Multi-pollutant/Multi-effect Air Quality Management. National Cheng Kung University, Tainan: Taiwan, April 16, 2013

X. Wang, Robles, J. A., Yang, X., Chen, L.-W.A., Chow, J. C., Watson, J. G. (2013). Thermal/Optical Analysis of Major Elements (C, H, N, S, and O) for Particles from Different Emission Sources. Proceedings, in 2013 European Aerosol Conference: Prague, Czech Republic, September 1, 2013

X. Wang, Robles, J. A., Yang, X., Chen, L.-W.A., Chow, J. C., Watson, J. G. (2013). Enhanced Thermal/Optical Analyzer for Aerosol Elemental, Molecular, and Optical Property Characterization. A&WMA Air Quality Measurement Methods and Technology Conference: Sacramento, CA, November 9, 2013

Tropp, R. J., Chen, L.-W.A., Sullivan, D. W., Price, J. H. (2013). Chemical Speciation and Source Attribution Studies Lead to Voluntary Measures that Successfully Reduce Neighborhood PM2.5 Levels North of the Houston Ship Channel, Extended Abstract #13020. In Proceedings for the Air & Waste Management Association: Chicago, IL, June 25, 2013

2012

Chen, L.-W.A., Watson, J. G., Chow, J. C., Green, M. C. (2012). Causes of wintertime PM2.5 episodes in Reno, NV: A valley of western U.S.. Institute of Earth Environment, Chinese Academy of Sciences: Xi’an, January 7, 2012

Chen, L.-W.A. (2012). Receptor Modeling Framework: Examples for Lake Tahoe Basin PM source apportionment. Shanghai Environmental Monitoring Center (SEMC): Shanghai, China, October 19, 2012

Chow, J. C., Watson, J. G., X. Wang, Robles, J. A., Yang, X., Chen, L.-W.A. (2012). Advances for Thermal/Optical Carbon Analysis. Institute of Earth Environment, Chinese Academy of Sciences: Xi’an, China, September 20, 2012

Chow, J. C., X. Wang, Trimble, D. L., Robles, J. A., Chen, L.-W.A., Watson, J. G. (2012). IMPROVE Carbon Analysis. Presentation at IMPROVE Steering Committee Meeting: Incline Village, NV, October 23, 2012

Green, M. C., Chen, L.-W.A., Chow, J. C., Watson, J. G. (2012). Meteorological conditions and PM2.5 concentrations in winter in a high altitude urbanized valley. AMS First Conference on Atmospheric Biogeosciences: Boston, MA, May 29, 2012-June 1, 2012

Green, M. C., Chen, L.-W.A., DuBois, D. W., Molenat, J. (2012). Sources of and trends in visibility reducing particles in the Lake Tahoe basin, 1990-2009. Presentation at the Aerosol and Atmospheric Optics: Visibility and Air Pollution, AWMA Specialty Conference: Whitefish, MT, September 24, 2012

Malamakal, T., Chen, L.-W.A., Chow, J. C., Wang, X., Green, M. C., Gronstal, S. B. (2012). Emissions from Prescribed Burning and the Effects on Air Quality in the Lake Tahoe Basin. 6th Biennial Lake Tahoe Basin Science Conference: Incline Village, NV, May 22, 2012

2008

Moosmüller, H., Arnott, W. P., Chen, L.-W.A., Obrist, D., Chakrabarty, R. K., Wold, C. E., Hao, W. M., Kreidenweis, S. M. (2008). Particle Emissions from Flaming and Smoldering Laboratory Combustion of Wildland Fuels. NASA Fire Science Workshop: Adelphi, MD, February 2008.