Mei Zheng

Senior Research Scientist

School of Earth and Atmospheric Sciences,

Georgia Institute of Technology,

Atlanta, GA 30332-0340, USA

Tel: 404-894-1633 (office), Fax: (404) 894-5638;

Email: mzheng@eas.gatech.edu

Education

Ph.D., Graduate School of Oceanography, University of Rhode Island, Narragansett, RI, USA;

M.S., State Key Laboratory of Organic Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China;

B.S., Sun Yat-sen University, Guangzhou, China.

Research Interests

Air Pollution;

Source Apportionment of Atmospheric Fine Particulate Matter (PM2.5);

Measurement of organic compounds using GC/MS;

Measurement of elements using ICP/MS;

Formation, Transport, and Deposition of Aerosols;

Receptor Modeling (Chemical Mass Balance Modeling with Molecular Markers).

Member of

American Geophysical Union;

Air & Waste Management Association;

American Association of Aerosol Research.

Research Projects

► Source Apportionment of PM2.5 from SEARCH network (as Principal Investigator)

PM2.5 samples from the SEARCH (the Southeastern Aerosol Research and Characterization) network from 1999 to 2005 are analyzed in our laboratory to understand the sources to primary organic carbon in the Southeastern U.S using organic tracers and chemical mass balance modeling. Samples were obtained from eight sites in four states: GA, AL, MS, and FL (map of SEARCH sites). Daily PM2.5 samples from Jefferson St., Atlanta (the former Atlanta Supersite), during July 2001 and January 2002 were collected and analyzed to investigate the daily variation of sources during summer and winter. The source apportionment study of primary carbon and PM2.5 at SEARCH sites will allow us to understand the PM2.5 sources at rural and urban sites in the Southeastern U.S., and their spatial and temporal trends.

► Carbonaceous Aerosol in the Tennessee Valley (as Principal Investigator)

Sources of carbonaceous aerosols collected from three sites of Chattanooga, TN, Muscle Shoals, AL, and Look Rock, TN in the Tennessee Valley Region (TVR) were apportioned using both molecular marker-based chemical mass balance (CMB-MM) modeling and radiocarbon (14C) measurement and the results were compared. The comparison between the 14C and CMB results revealed that contemporary sources dominated other OC in the TVR, especially in summer (84%).

► Fine Particulate Analysis in Indian Cities (as Co-Principal Investigator)

Fine particulate samples were obtained from five cities in India including Delhi, Mumbai, Kolkata, and Chandigarh. Fine particle organic carbon is speciated in our laboratory to quantify sources contributing to fine particle pollution (CMB-MM). Samples were collected in four seasons (March, June, October, and December 2001) in Delhi, Mumbai, and Kolkata and in summer in Chandigarh. On average, primary emissions from fossil fuel combustion (coal, diesel, and gasoline) are responsible for about 25-33% of PM2.5 mass in Delhi, 21-36% in Mumbai, 37-57% in Kolkata, and 28% in Chandigarh. The contribution from biomass combustion to ambient PM2.5 in Indian cities is significant (7-20% for Delhi, 7-20% for Mumbai, 13-18% for Kolkata, and 8% for Chandigarh).

► Study of Air Quality Impacts Resulting from Prescribed Burning on Military Facilities (as Co-Principal Investigator)

The primary objectives of this study are to answer the following questions: 1) the extent that prescribed burning at Fort Benning, Columbus, GA, affects the local and regional air quality, 2) the composition and concentration of gas and particle phase air pollutants, and 3). the characteristics of air pollutants emitted at different burning conditions such as flaming and smoldering phase. My group will focus on the analysis of the particle phase organic compounds emitted from the prescribed burning. We use Andersen High Volume Sampler to collect the fine particles, PM2.5, on the quartz fiber filter, which will be extracted with solvents and the organic compounds will be identified and quantified with GC/MS (Gas Chromatography/Mass Spectrometry).

► PM2.5 sources in the Eastern U.S. (as Principal Investigator)

Source apportionment using organic tracers and CMB is conducted with the PM2.5 samples collected from USEPA eastern speciation trend network (STN) during summer and winter 2002. The samples were from the urban and rural sites in 23 eastern states. In my lab, samples are extracted with solvents, filtered, concentrated, derivatized, then injected into GC/MS (gas chromatography/mass spectrometry) for organic compounds Identification and quantification. The GC/MS used in our lab is HP GC/MSD (6890 GC, 5973N) with autosampler.

Publications

(1)Zheng, M. (2009) Encyclopedia of Environmental Health: Hong Kong Case, to be published by Elsevier, in press.

(2)Yan, B., Zheng, M., Hu, Y., Ding, X., Sullivan, A., Weber, R., Baek, J., Edgerton, E.S. and Russell, A.G. (2009) Roadside, urban and rural comparison of primary and secondary organic molecular markers in ambient PM2.5, Environmental Science and Technology, in press.

(3)Guo, Z., Lin, T., Zhang, G., Hu, L., and Zheng, M. (2009) Occurance and source of polycyclic aromatic hydrocarbons and n-alkanes in PM2.5 at the roadside environment of a major city in China, Journal of Hazardous Materials, in press.

(4)Cheng, Y., He, K.B., Duan, F.K., Zheng, M., Ma, Y.L., and Tan, J.H. (2009) Measurement of semivolatile carbonaceous aerosols and its implications: A review. Environmental International 35, 674-681.

(5)Tian, D., Hu, Y., Wang, Y., Boylan, J.W., Zheng, M., and Russell, A.G. (2008) Assessment of biomass burning emissions and their impacts on urban and regional PM2.5: A Georgia case study, Environmental Science and Technology 43, 299-305.

(6)Zheng, M., Kester, D.R., Wang, F., Shi, X., Guo., Z. (2008) Size distributions of organic and inorganic species in Hong Kong aerosols during the wet and dry seasons, Journal of Geophysical Research-Atmospheres, 113, D16303, doi:10.1029/2007JD009494. Pdf.

(7)Yan, B., Zheng, M., Hu, Y.T., Lee, S., Kim, H.K., and Russell, A.G. (2008) Organic composition of carbonaceous aerosols in an aged prescribed fire plume, Atmospheric Chemistry and Physics, 8, 6381-6394.

(8)Ding, X., Zheng, M., Edgerton, E.S., Jansen, J.J., and Wang, X. (2008) Contemporary or fossil origin - The split of estimated secondary organic carbon in the southeastern United States, Environmental Science and Technology 42, 9116-9121.

(9)Ding, X., Zheng, M., Yu, L., Zhang, X., Weber, R., Yan, B., Russell, A.G., Edgerton, E.S., and Wang, X. (2008) Spatial and seasonal trends in biogenic secondary organic aerosol tracers and water soluble organic carbon in the southeastern United States, Environmental Science and Technology 42, 5171-5176. Pdf.

(10)Ke, L., Liu, W., Wang, Y., Russell, A.G., Edgerton, E.S., Zheng, M. (2008) Comparison of PM2.5 source apportionment using molecular marker-based chemical mass balance and positive matrix factorization, Science of the Total Environment 394, 290-302. Pdf.

(11)Lee, S., Kim, H.K., Yan, B., Cobb, C.E., Hennigan, C., Nichols, S., Chamber, M., Edgerton, E.S., Jansen, J.J., Hu, Y., Zheng, M., Weber, R., Russell, A.G. (2008) Diagnosis of aged prescribed burning plumes hitting an urban area: Implications to air quality modeling, Environmental Science and Technology 42, 1438-1444. Pdf.

(12)Ke, L., Ding, X., Tanner, R.L., Schauer, J.J., and Zheng, M. (2007) Source contributions to carbonaceous aerosols in the Tennessee Valley Region, Atmospheric Environment 41, 8898-8923. Pdf.

(13)Sheesley, R., Schauer, J.J., Zheng, M., and Wang, B. (2007), Sensitivity of molecular marker-based CMB models to biomass burning source profiles, Atmospheric Environment 41, 9050-9063. Pdf.

(14)Hagler, G.S.W., Bergin, M.H., Salmon, L.G., Yu, J.Z., Wan, E.C.H. Wan, Zheng, M., Zeng, L.M., Kiang, C.S., Zhang, Y.H., Schauer, J.J. (2007) Local and regional anthropogenic influence on PM2.5 elements in Hong Kong. Atmospheric Environment 41, 5994-6004. Pdf.

(15)Guo, Z., Lin, T., Zhang, G., Zheng, M., Hao, Y., and Fang, M. (2007) The sedimentary fluxes and sources of polycyclic aromatic hydrocarbons in the Yangtze River Estuary and adjacent area for the past 150 years, Science of the Total Environment 386, 33-41. Pdf.

(16)Chowdhury, Z., Zheng, M., Sheesley, R.J., Schauer, J.J., Cass, G.R., Russell, A.G. (2007) Detailed speciation of ambient fine organic carbon particles and source apportionment of PM2.5 in Indian cities, Journal of Geophysical Research-Atmospheres 112, D15303, doi:10.1029/2007JD008386. Pdf.

(17)Ding, X., Wang, X., Xie Z., Xiang C., Mai, B., Sun, L., Zheng, M., Sheng, G., and Fu, J. (2007) Atmospheric hexachlorocyclohexanes (HCHs) in the North Pacific Ocean and the adjacent Arctic Region: Spatial patterns, chiral signatures, and sea-air exchanges, Environmental Science and Technology 41, 5204-5209. Pdf.

(18)Bhave, P.V., Pouliot, G.A., and Zheng, M. (2007) Diagnostic model evaluation for carbonaceous PM2.5 in the southeastern United States during summer 1999 using molecular measurements, Environmental Science and Technology 41, 1577-1583. Pdf.

(19)Weber, R., Sullivan, A.P., Peltier, R.E., Russell, A.G., Yan, B., Zheng, M., Gouw, J., Warneke, C., Brock, C., Holloway, J.S., Atlas, E.L., and Edgerton, E. (2007) A study of secondary organic aerosol formation in the anthropogenic-influenced Southeastern USA, Journal of Geophysical Research-Atmospheres, 112, D13302, doi:10.1029/2007JD008408. Pdf.

(20)Ding, X., Wang, X., Xie, Z., Xiang, C., Mai, B., Sun, L., Zheng, M., Sheng, G., Fu, J., and Poschl U. (2007) Atmospheric polycyclic hydrocarbons observed over the North Pacific Ocean and the Arctic Ocean: Spatial distribution and source identification, Atmospheric Environment 41, 2061-2072. Pdf.

(21)Zheng, M., Guo, Z., Fang, M., and Kester, D.R. (2007) The influence of Asian Monsoon on the organic and inorganic properties of aerosols in Hong Kong, Atmospheric Research 84, 323-336. Pdf.

(22)Zheng, M., Ke, L., Wang, F., Cass, G.R., Schauer, J.J., Edgerton, E.S., Russell, A.G. (2007) Source apportionment of daily PM2.5 at Jefferson Street, Atlanta, GA during summer and winter, Journal of the Air & Waste Management Association 57, 228-242. Pdf.

(23)Song, Y., Xie, S., Zhang, Y., Zeng, L., Zheng, M., and Salmon, L. (2006) Source apportionment of PM2.5 in Beijing using principal component analysis/absolute principal component scores (PCA/APCS) and UNMIX, Science of the Total Environment 372, 278-286. Pdf.

(24)Seagrave, J.C., McDonald, J.D., Bedrick, E., Edgerton, E.S., Gigliotti, A.P., Jansen, J.J., Ke, L., Naeher, L., Seilkop, S.K., Zheng M., and Mauderly, J.L. (2006) Lung toxicity of ambient particulate matter from southeastern US sites with different contributing sources: Relationships between composition and effects, Environmental Health Perspectives 114, 1387-1393. Pdf.

(25)Zheng, M., Hagler, G.S.W., Ke, L., Bergin, M.H., Wang, F., Louie, P.K.K., Salmon, L., Sin, D.W.M., Yu, J., and Schauer, J.J. (2006) Composition and sources of carbonaceous aerosols at three contrasting sites in Hong Kong, Journal of Geophysical Research-Atmospheres 111, D20313, doi:10.1029/2006JD007074. Pdf.

(26)Zheng, M., Ke, L., Edgerton, E.S., Schauer, J.J., Dong, M., and Russell, A.G. (2006) Spatial distribution of carbonaceous aerosol in the southeastern US using molecular markers and carbon isotope data. Journal of Geophysical Research-Atmospheres 111, D10S06, doi:10.1029/2005JD006777. Pdf.

(27)Hagler, G.S.W., Bergin, M.H., Salmon, L.G., Yu, J.Z., Wan, E.C.H., Zheng, M., Zeng, L.M., Kiang, C.S., Zhang, Y.H., and Schauer, J.J. (2006) Source areas and chemical composition of fine particulate matter in the Pearl River Delta region of China, Atmospheric Environment 40, 3802-3815. Pdf.

(28)Song, Y., Zhang, Y., Xie, S., Zeng, L., Zheng, M., Salmon, L.G., Shao, M., and Slanina S. (2006) Source apportionment of PM2.5 in Beijing by positive matrix factorization. Atmospheric Environment 40, 1526-1537. Pdf.

(29)Zheng, M., Guo, Z.G., Fang, M., Rahn, K.A., and Kester, D.R. (2005) Dry and wet deposition of elements in Hong Kong. Marine Chemistry 97, 124-139. Pdf.

(30)Zheng, M., Salmon, L.G., Schauer, J.J., Zeng, L., Kiang, C.S., Zhang, Y., and Cass, G.R. (2005) Seasonal trends in PM2.5 source contributions in Beijing, China. Atmospheric Environment 39, 3967-3976. Pdf.

(31)Guo, Z.G., To, K.L., Zheng, M., and Fang, M. (2004) An upwind/downwind comparative study of the solvent extractable organic compounds in PM2.5 in Hong Kong. Aerosol and Air Quality Research 4, 1-16. Pdf.

(32)Zheng, M., Cass, G.R., Schauer, J.J., and Edgerton, E.S. (2002) Source apportionment of fine particle air pollutants in the Southeastern United States using solvent-extractable organic compounds as tracers. Environmental Science and Technology 36, 2361-2371. Pdf.

(33)Zheng, M., and Fang, M. (2000) The Correlation of organic and inorganic species in atmospheric aerosols. Environmental Science and Technology 34, 2721-2726. Pdf.

(34)Zheng, M., Fang, M., Wang, F., and To, K.L. (2000) Characterization of the solvent extractable organic compounds in PM2.5 aerosols. Atmospheric Environment 34, 2691-2702. Pdf.

(35)Zheng, M., and Fang, M. (2000) Particle-associated polycyclic aromatic hydrocarbons in the atmosphere of Hong Kong. Water, Air and Soil Pollution 117, 175-189. Pdf.

(36)Fang, M., Zheng, M., Wang, F., Hsiao, W., Jaafar, A.B. and Tong, S.L. (1999) The solvent- extractable organic compounds in the Indonesia biomass burning aerosols -Characterization and toxicity studies. Atmospheric Environment 33, 783-795. Pdf.

(37)Fang, M., Zheng, M., Wang, F., Chim, K.S., and Kot, S.C. (1999) The long-range transport of aerosols from Northern China to Hong Kong - A multi-technique study. Atmospheric Environment 33, 1803-1817. Pdf.

(38)Mohamed, S.S., Khalid, S.A., Ward, S.A., Wan, T.S.M., Tang, H.P.O., Zheng, M., Haynes, R.K., and Edwards, G. (1999) Simultaneous determination of artemether and its major metabolite dihydroartemisinin in plasma by gas chromatography-mass spectrometry-selected ion monitoring. Journal of Chromatography B 731, 251-260. Pdf.

(39)Zheng, M., Wan, T.S.M., Fang, M., and Wang, F. (1997) Characterization of the non-volatile organic compounds in the aerosols in Hong Kong - Identification, abundance and origin. Atmospheric Environment 31, 227-237. Pdf.

(40)Zheng, M. (1994) The composition, evolution, and its paleoclimatic and paleoenvironmental significance of organic matter in recent sediments in Lake Gucheng. Geology-Geochemistry 5, 83-84 (in Chinese).

Presentations

(1)Zheng, M., Wang, F., Hagler, G.S.W., Bergin, M., Salmon, L.G., Hou, X., Ke, L., Schauer, J.J., Zeng, L.M., and Zhang, Y. (2008) Characteristics of organic aerosol in the Pearl River Delta. The 2nd International Workshop on Mega-city and Regional Air Pollution, Guangzhou, China, January 18-20, 2008.

(2)Zheng, M., Yu, L., Schauer, J.J., and Edgerton, E.S. (2007) Application of carbon isotope, organic tracers, and receptor modeling in PM2.5 source apportionment. The 10th International Conference on Atmospheric Sciences and Application to Air Quality, Hong Kong, May 14-16, 2007.

(3)Zheng, M. (2007) Source apportionment of particulate matter in Atlanta. MANE-VU and Midwest RPO 2007 Regional Haze Science Meeting, Timonium, MD, USA, July 10-11, 2007.

(4)Yan, B., Zheng, M., Sullivan, A., Weber, R., Lee, S., Cobb, C.E., Chandru S., Kim, H.K., Russell, A.G. (2007) Roadside, near-road and regional detailed chemical composition and source apportionment of PM2.5 at Atlanta, GA in two seasons. AAAR 26th Annual Conference, Reno, Nevada, USA, September 24-28, 2007.

(5)Yan, B., Zheng, M., Sullivan, A., Weber, R., Lee, S., Cobb, C.E., Chandru S., Kim, H.K., Russell, A.G. (2007) Temporal and spatial variation of primary organic carbon sources and biogenic SOA impacts. AAAR 26th Annual Conference, Reno, Nevada, USA, September 24-28, 2007.

(6)Ding, X., Yu, L., Weber, R., Zheng, M. (2007) Spatial and seasonal variations of secondary organic tracers in the Southeastern United States. AAAR 26th Annual Conference, Reno, Nevada, USA, September 24-28, 2007.

(7)Baek, J., Yan, B., Lee, S., Hu, Y., Zheng, M., Russell, A.G. (2007) Reconciliation of an emission based model and a source based model via source apportionment of PM2.5 - Part 1. Organic molecular markers. AAAR 26th Annual Conference, Reno, Nevada, USA, September 24-28, 2007.

(8)Baek, J., Lee, S., Yan, B., Zheng, M., Russell, A.G. (2007) Reconciliation of an emission based model and a source based model via source apportionment of PM2.5 - Part 2. Trace metals. AAAR 26th Annual Conference, Reno, Nevada, USA, September 24-28, 2007.

(9)Weber, R.J., Sullivan, A., Peltier, R., Hennigan, C., Yan, B., Zheng, M., Kaynak, B., Russell, A.G., DeGouw, J., Brock, C., Warneke, C., Holloway, J., Atlas, E., and Edgerton, E. (2006) Investigating the formation of ambient secondary organic aerosol in the Southeastern USA. The Southeastern Regional Meeting of the American Chemical Society, Augusta, Georgia, USA, November 1-4, 2006.

(10)Zheng, M., Dong, M., Russell, A.G., Schauer, J.J., and Edgerton, E.S. (2006) Characterization of carbonaceous aerosol in PM2.5 in the eastern United States. 7th International Aerosol Conference, St. Paul, Minnesota, USA, September 10-15, 2006.

(11)Weber, R., Sullivan, A., Peltier, R., Hennigan, C., Russell, A.G., Yan, B., Zheng, M., Gouw, J., Warneke, C., Holloway, J., Atlas, E., Edgerton, E. (2006) Secondary organic aerosol formation in metropolitan Atlanta, Georgia. 7th International Aerosol Conference, St. Paul, Minnesota, USA, September 10-15, 2006.

(12)Zheng, M., Ke, L., Edgerton, E.S., Schauer, J.J., Dong, M., and Russell, A.G. (2005) Source apportionment of fine particulate matter in the southeastern US using organic tracers and a mass balance receptor model. Invited talk, the First Georgia Air Policy Symposium, Atlanta, Georgia, December 19, 2005.

(13)Zheng, M., Wang, B., Ke, L., Schauer, J.J., Edgerton, E.S. (2005) Source contributions to organic carbon in PM2.5 in urban and rural areas in the southeastern United States. 2005 AAAR Conference: Particulate Matter Supersite Program & Related Studies, Atlanta, Georgia, USA, February 7-11, 2005.

(14)Tanner, R.L., Zheng, M., Ke, L., Schauer, J.J., McNichol A.P. (2005) Source contributions to the organic aerosol fraction in the Tennessee Valley: seasonal and urban-rural differences. 2005 AAAR Conference: Particulate Matter Supersite Program & Related Studies, Atlanta, Georgia, USA, February 7-11, 2005.

(15)Yan, B., Zheng, M., Russell, A.G. (2005) Quantitative study of sensitivities and uncertainties of molecular marker-based CMB modeling. 2005 AAAR Conference: Particulate Matter Supersite Program & Related Studies, Atlanta, Georgia, USA, February 7-11, 2005.

(16)Lee, S., Baumann, K., Zheng, M., Schauer, J.J., Sheesley, R.J., Clements, M. (2005) Air quality impacts of prescribed burning in Georgia. 2005 AAAR Conference: Particulate Matter Supersite Program & Related Studies, Atlanta, Georgia, USA, February 7-11, 2005.

(17)Baumann, K., Unal, A., Lee, S., Zheng, M. (2005) Case study of local accumulation of PM2.5 from prescribed burning with consequences for attainment. 2005 AAAR Conference: Particulate Matter Supersite Program & Related Studies, Atlanta, Georgia, USA, February 7-11, 2005.

(18)Park, S., Russell, A.G., Ke, L., Zheng, M. (2005) Source apportionment of PM2.5 using a three-dimensional air quality model and a receptor model. 2005 AAAR Conference: Particulate Matter Supersite Program & Related Studies, Atlanta, Georgia, USA, February 7-11, 2005.

(19)Chowdhury, Z., Zheng, M., Salmon, L.G., Sheesley, R.J., Schauer, J.J., Cass, G.R., Russell, A.G. (2004) Source apportionment and characterization of ambient fine particles in Delhi, Mumbai, Kolkata, and Chandigarh. Better Air Quality Workshop, Agra, India, December 6-8, 2004.

(20)Bhave, P.V., Pouliot, G.A., Zheng, M. (2004) Source apportionment of primary carbonaceous aerosol using the CMAQ model. P27th NATO ITM Conference, Banff Centre, Alberta, Canada, 25 to 29 October, 2004.

(21)Zheng, M., Ke, L., Park, S., Edgerton, E.S., Russell, A.G. (2004) Spatial and temporal variations of the major sources of primary fine organic carbon and PM2.5 in the southeastern United States. The 23th Annual American Association for Aerosol Research (AAAR) Conference in Atlanta, Georgia, USA, October 4-8, 2004.

(22)Wang, B., Dong, M., Schauer, J.J., Zheng, M. (2004) Evaluation of organic tracer analysis in aerosol. The 23th Annual American Association for Aerosol Research (AAAR) Conference in Atlanta, Georgia, USA, October 4-8, 2004.

(23)Yan, B., Zheng, M., Russell, A.G. (2004) Uncertainty analysis of chemical mass balance modeling using organic tracers for PM2.5 source apportionment. The 23th Annual American Association for Aerosol Research (AAAR) Conference in Atlanta, Georgia, USA, October 4-8, 2004.

(24)Ke, L., Tanner, R.L., Schauer, J.J., Zheng, M. (2004) Source apportionment of fine particulate matter in the Tennessee Valley Region. The 23th Annual American Association for Aerosol Research (AAAR) Conference in Atlanta, Georgia, USA, October 4-8, 2004.

(25)Zheng, M., Russell, A.G., Schauer, J.J., Dong, M., Edgerton, E.S., and Cass, G.R. (2004) Source apportionment of fine organic carbon in the eastern United States. The 8th International Conference on Carbonaceous Particles in the Atmosphere, Vienna, Austria, September 14-16, 2004.

(26)Edgerton, E.S., Jansen, J.J., Zheng, M., Hartsell, B.E. (2004) Sources of carbon in PM2.5 based on 14C and tracer analysis. The 8th International Conference on Carbonaceous Particles in the Atmosphere, Vienna, Austria, September 14-16, 2004.

(27)Chowdhury, Z., Zheng, M., Cass, G.R., Russell, A.G., Sheesley, R.J., Schauer, J.J., Salmon, L.G. (2004) Source apportionment and chemical characterization of the ambient fine particle aerosol in Delhi, Mumbai, and Kolkata. Symposium on Air Quality Measurement Methods and Technology, Research Triangle Park, NC, April 20-22, 2004.

(28)Zheng, M., Bergin, M., Schauer, J.J., Willis, G.W., Salmon, L.G., Zhang, Y., Yu, J., Tang, X. (2004) Sources and Characteristics of Organic Carbon and Fine Particulate Matter in Pearl River Delta. The 3rd Asian Aerosol Conference, Hong Kong, China, January 6-9, 2004.

(29)Fang, M., Feng, J.L., Lau, P.S., Guo, Z.G., Zheng, M. (2004) Kitchen Emissions in Atmospheric Aerosols. The 3rd Asian Aerosol Conference, Hong Kong, China, January 6-9, 2004.

(30)Louie, P.K.K., Leung, G.S.P., Yeung, B.T.W., Sin, D.W.M., Bergin, M., Zheng, M., Yu, J., Lau, A.K.H., Watson, J., Chow, J.C. (2004) A study of PM2.5 and Its Chemical Composition in Hong Kong. The 3rd Asian Aerosol Conference, Hong Kong, China, January 6-9, 2004.

(31)Bergin, M.H., Salmon, L.G., Willis, G.S., Yu, J., Zhang, Y., Zeng, L., Zheng, M., Tang, X., Schauer, J.J., Kiang, C.S. (2004) Measurement of PM2.5 Mass and Chemical Composition at Several Locations in the Pearl River Delta. The 3rd Asian Aerosol Conference, Hong Kong, China, January 6-9, 2004.

(32)Zheng, M., Schauer, J.J., Russell, A.G., Bergin, M.H., Cass, G.R. (2003) A Comparison of Organic Characteristics and PM2.5 Sources Between Asian and the U.S. Cities. The 22th Annual American Association for Aerosol Research (AAAR) Conference in Anaheim, California, USA, October 20-24, 2003.

(33)Baumann, K., Lee, S., Zheng, M., Dookwah, V., Fu, W., Russell, A. (2003) Air Quality Impacts from Prescribed Burning. The 22th Annual American Association for Aerosol Research (AAAR) Conference in Anaheim, California, USA, October 20-24, 2003.

(34)Zheng, M., Russell, A.G., Schauer, J.J., Edgerton, E.S., Jansen, J.J. (2003) PM2.5 Source Apportionment in the Southeastern U.S. Using Organic Tracers. Proceeding of the Air Quality IV: Mercury, Trace Elements, and Particulate Matter Conference, Section B4, Arlington, Virginia, USA, September 22-24, 2003.

(35)Zheng, M., Russell, A.G., Schauer, J.J., Edgerton, E.S., Jansen, J.J. (2003) Characteristics of Daily Fine Particulate Matter at Atlanta, GA. 2003 AAAR PM Meeting Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, USA, March 31-April 4, 2003.

(36)Edgerton, E.S., Zheng, M., Waid, C.J., Jansen, J.J., Hartsell, B.E. (2003) Source Allocation of Carbon in PM2.5 Using C-14 and Tracer Information. 2003 AAAR PM Meeting Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, USA, March 31-April 4, 2003.

(37)Chowdhury, Z., Zheng M., Russell, A.G. (2003) Characterization of ambient fine particulate matter in Delhi, Mumbai, and Kolkata. 2003 AAAR PM Meeting Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, USA, March 31-April 4, 2003.

(38)Zheng, M., Russell, A.G., Edgerton, E.S., Schauer, J.J., Jansen, J.J. (2002) Source apportionment of fine particles at Atlanta, Georgia. The 21th Annual American Association for Aerosol Research (AAAR) Conference in Charlotte, North Carolina, USA, October 7-11, 2002, page 74.

(39)Zheng, M., Cass, G.R., Schauer, J.J. (2001) Source apportionment of fine particle air pollutants in the Southeastern U.S. using solvent-extractable organic compounds as tracers. The 20th Annual American Association for Aerosol Research (AAAR) Conference in Portland, Oregon, USA, October 15-19, 2001, page 234.

(40)Zheng, M., Cass, G.R., Kiang, C.S., Zeng, L., Tang, X., Zhang, Y., and Salmon, L. (2001) Source contributions to atmospheric fine particle concentrations in Beijing. The 20th Annual American Association for Aerosol Research (AAAR) Conference in Portland, Oregon, USA, October 15-19, 2001, page 320.

(41)Guo, Z., To, K.L., Zheng, M., and Fang, M. (2001) The dispersion of PM2.5 aerosols in Hong Kong. The 2nd Asian Aerosol Conference, Pusan, Korea, 1-4 July 2001.

(42)Zheng, M., Kester D.R., Fang M., and Guo Z.G. (2000) The Sources of aerosol in Hong Kong - From elements and solvent-extractable organic compounds. The 19th Annual American Association for Aerosol Research (AAAR) Conference in St. Louis, Missouri, USA, November 6-10, 2000, page 194.

(43)Zheng, M., Fang, M., and Wang, F.A (1999) Comparison of the organic and inorganic characteristics of simultaneous TSP and PM2.5. The Workshop on Air Pollution in the Pearl River Delta, 9-10 December 1999, Hong Kong.

(44)Zheng, M., and Fang, M. (1999) Correlating the organic and inorganic species in atmospheric aerosols for source apportionment. The Workshop on Air Pollution in the Pearl River Delta, 9-10 December 1999, Hong Kong.

(45)Hsiao, W.W.L., Mo, Z., Fang, M., Zheng, M., and Wang F. (1999) Comparison of cytotoxicities of PM2.5 vs. PM10 of air pollutants assessed by the MTT and the COMET assays. The Workshop on Air Pollution in the Pearl River Delta, 9-10 December 1999, Hong Kong.

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