Dr. Yongming Han 
Telephone: 029-88329320
Address: No. 10 Fenghui South Road, High-Tech Zone, Xi'an 710075, Xi'an, China. 
Postcode: 710075

Research Areas

My interest focuses on the climate change, the linkage between the very short atmospheric time series and longer sedimentary records of various pollutants, especially on black carbon. I am particularly interested in black carbon in the environment,  its methodology, origins, transport, deposition, and fate, as well as black carbon in various matrices, including the atmosphere, soils and sediments. In addition, I am seeking to reconstruct past atmospheric history of various pollutants such as heavy metals and black carbon, using the long-term sedimentary records. Also I am interested in aerosol and surface particle pollution.




Work Experience
Teaching Experience

Honors & Distinctions



Peer-reviewed publications in English:
Han Y.M., Marlon J., Cao J.J., Jin Z.D. and An Z.S., 2012. Holocene linkages between char, soot, biomass burning and climate from Lake Daihai, China. Global Biogeochemical Cycles, 26, GB4017, doi:10.1029/2011GB004197.
Han Y.M., Cao J.J., Wu F., Zhang B.C., Zhan C.L., Wei C., Zhao Z.Z.. 2012. Geochemistry and environmental assessment of major and trace elements in the surface sediments of the Wei River, China. Journal of Environmental Monitoring, 14, 2762-2771. 
Cao J.-J., Shen Z.-X., Chow J.C., Watson J.G., Lee S.-C., Tie X.-X., Ho K.-F., Wang G.-H., Han Y.-M., 2012. Winter and Summer PM2.5 Chemical Compositions in Fourteen Chinese Cities. Journal of Air Waste Management, 62, 1214-1226. 
Fu, T.M., Cao, J.J., Zhang, X.Y., Lee, S.C., Zhang, Q., Han, Y.M., Qu, W.J., Han, Z., Zhang, R., Wang, Y.X., Chen, D., Henze, D.K., 2012. Carbonaceous aerosols in China: top-down constraints on primary sources and estimation of secondary contribution. Atmospheric Chemistry and Physics, 12, 2725-2746.
Xu H.M., Cao J.J., Ho K.F., Ding H., Han Y.M., Wang G.H., Chow J.C., Watson J.G., Khol S.D., Qiang J., Li W.T., 2011. Lead concentrations in fine particulate matter after the phasing out of leaded gasoline in Xi’an, China. Atmospheric Environment, 2012, 217-224.
Cheng Y., Zou S.C., Lee S.C., Chow J.C., Ho K.F., Watson J.G., Han Y.M., Zhang R.J., Zhang F., Yau P.S., Huang Y., Bai Y. and Wu W.J., 2011. Characteristics and source apportionment of PM1 emissions at a roadside station. Journal of Hazardous Materials, 195, 82-91.
Zhang T., Cao J.J., Tie X.X., Shen Z.X., Liu S.X., Ding H., Han Y.M., Wang G.H., Ho K.F., Qiang J., Li W.T., 2011. Water-soluble ions in atmospheric aerosols measured in Xi'an, China: Seasonal variations and sources. Atmospheric Research, 102, 110-119.
Han Y.M., Cao J.J., Yan, B. Kenna T.C., Jin Z.D., Cheng Y., Chow J.C., An Z.S., 2011. Comparison of elemental carbon in lake sediments measured by three different methods and 150-year pollution history in eastern China. Environmental Science & Technology, 45, 5287-5293.
Han Y.M., Cao J.J., Kenna T.C., Yan, B. Jin Z.D., Wu F., An Z.S., 2011. Distribution and ecotoxicological significance of trace element contamination in a ~150 yr record of sediments in Lake Chaohu, eastern China. Journal of Environmental Monitoring, 13, 743-752. DOI:10.1039/C0EM00551G..
Cao J.J., Chow J.C., Tao J., Lee S.C., Watson J.G., Ho K.F., Wang G.H., Zhu C.S., Han Y.M., 2011. Stable carbon isotopes in aerosols from Chinese cities: influence of fossil fuels. Atmospheric Environment, 45, 1359-1363.
Han Y.M., Cao J.J., Lee S.C., Ho K.F., An Z.S., 2010. Different characteristics of char and soot in the atmosphere and their ratio as an indicator for source identification in Xi’an, China. Atmospheric Chemistry and Physics, 10, 595-607.
Jin Z.D., Han Y.M., Chen L., 2010. Past atmospheric Pb deposition in Lake Qinghai, northeastern Tibetan Plateau. Journal of Paleolimnology, 43, 551-563.
Han Y.M., Lee S.C., Cao J.J., Ho K.F., An Z.S., 2009. Spatial distribution and seasonal variation of char-EC and soot-EC in the atmosphere over China. Atmospheric Environment, 43, 6066-6073.
Han Y.M., Cao J.J., Chow J.C., Watson J.G., An Z.S., Liu S.X., 2009. Elemental carbon in urban soils and road dusts in Xi’an, China and its implication for air pollution. Atmospheric Environment, 43, 2464-2470.
Han Y.M., Cao J.J., Posmentier E.S., Chow J.C., Watson J.G., Fung K., Jin Z.D., Liu S.X., An Z.S., 2009. The effect of acidification on the determination of elemental carbon, char-, and soot-elemental carbon in soils and sediments. Chemosphere, 75, 92-99.
Han Y.M., Cao J.J., Jin Z.D., An Z.S., 2009. Elemental composition of aerosols in Daihai, a rural area in the front boundary of the summer Asian monsoon. Atmospheric Research, 92, 229-235.
Cao J.-J. Xu B.-Q., He J.-Q., Liu X.-Q., Han Y.-M., Wang G.-H., Zhu C.-S., 2009. Concentrations, seasonal variations, and transport of carbonaceous aerosols at a remote Mountainous region in western China. Atmospheric Environment, 43, 4444-4452.
Cao J.-J. Zhu C.-S., Chow J.C., Watson J.G., Han Y.-M., Wang G.-H., Shen Z.-X., An Z.-S., 2009. Black carbon relationships with emissions and meteorology in Xi’an, China. Atmospheric Research, 94, 194-202.
Han Y.M., Han Z.W., Cao J.J., Chow J.C., Watson J.G., An Z.S., Liu S.X., Zhang R.J., 2008. Distribution and origin of carbonaceous aerosol over a rural high-mountain lake area, Northern China and its transport significance. Atmospheric Environment, 42, 2405-2414.
Han Y.M., Cao J.J., Posmentier E.S., Fung K., Tian H., An Z.S., 2008. Particulate-associated potentially harmful elements in urban road dusts in Xi’an, China. Applied Geochemistry, 23, 835-845.
Cao J.J., Zhu, C.S., Chow J.C., Liu W.G., Han Y.M., Watson J.G., 2008. Stable carbon and oxygen isotopic composition of carbonate in fugitive dust in the Chinese Loess Plateau. Atmospheric Environment, 42, 9118-9122.
Li X.X., Cao J.J., Chow J., Han Y.M., Lee S.C., Watson J., 2008. Chemical Characteristics of Carbonaceous Aerosols during Dust Storms over Xi’an in China. Advance in Atmospheric Science, 25, 847-855.
Cao J.J., Chow J.C., Watson J.G., Wu F., Han Y.M., Jin Z.D., Shen Z.X., An Z.S., 2008. Size-differentiated source profiles for fugitive dust in the Chinese Loess Plateau. Atmospheric Environment, 42, 2261-2275.
Han Y.M., Cao J.J., An Z.S., Chow J.C., Waston J.G., Jin Z.D., Fung K., Liu S.X., 2007. Evaluation of the thermal/optical reflectance method for quantification of elemental carbon in sediments. Chemosphere 69, 526-533.
Han Y.M., Cao J.J., Chow J.C., Watson J.G., Fung K., Jin Z.D., Liu S.X., An Z.S., 2007. Evaluation of the thermal/optical reflectance method for discrimination between char- and soot-EC. Chemosphere 69, 569-574.
Han Y.M., Jin Z.D., Cao J.J., Posmentier E.S., An Z.S., 2007. Atmospheric Cu and Pb deposition and transport in lake sediments in a remote mountain area, Northern China. Water, Air, and Soil Pollution, 179, 167-181.
Han Y.M., Du P.X., Cao J.J., Posmentier E.S., 2006. Multivariate analysis of heavy metal contamination in urban dusts of Xi’an, Central China. Science of the Total Environment, 355, 176-186.

Research Interests