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Lamont Associate Research Professor
Lamont-Doherty Earth Observatory
203 Comer
61 Route 9W - PO Box 1000
(845) 365-8448
(845) 365-8155


Fields of interest: 
Aqueous Geochemistry, Organic Geochemistry, Environmental Exposure and Health, and Environmental Science

My research is mainly focused on two areas: 1) characterizing exposure of pollutants and investigating adverse health effects of these pollutants in urban environments and 2) apportioning contamination sources and assessing environmental impact related to human activities (e.g., the fate of contaminants after Deepwater Horizon Oil Spill and impact of hydraulic fracturing on water and air quality).

The ability to unambiguously identify and measure trace organics is a prerequisite for testing mechanisms that impact their behavior and fate.  At LDEO, I have established an organic geochemistry laboratory from scratch with the ability to extract organic contaminants from environmental samples (waters, soils, sediments, aerosols) and biological samples (e.g., fish tissue and human exhaled breath condensate), to conduct purification and separation of organics of interest from the complex mixtures and matrices, and to identify and quantify those compounds using modern chromatography techniques. As I have built up these abilities at LDEO, I have continued my research in Environmental Geochemistry (e.g., source apportionment in the NY metropolitan area) and expanded into other areas, including tracing spilled oil in Gulf of Mexico, bioaccumulation and bioavailability of PAHs, bioremediation of contaminated soil/sediments, and the relationships between indoor and personal exposures to these contaminants and adverse respiratory outcomes related to the exposure among children living in NYC and Beijing, China. 

List of degrees from highest to lowest:
Rensselaer Polytechnic Institute, Troy, NY
Nanjing University, China
Nanjing University, China

Students: Jing Cai, Ting Zhang, Lawrence Cheng, Daniel Kennedy, Lissa Soares, Hadil Ayoub, etc.

Referenced in the Following News Items:

Selected Publications:

Assessment of Benzo(a)pyrene-equivalent Carcinogenicity and Mutagenicity of Residential Indoor versus Outdoor Polycyclic Aromatic Hydrocarbons Exposing Young Children in New York City Jung, KH; Yan, B; Chillrud, SN; Perera, F; Whyatt, R; Camann, D; Kinney, PL; Miller, RL International Journal of Environmental Research and Public Health (In Press)
Microbial reduction of Fe(III) in hematite nanoparticles by Geobacter sulfurreducens Yan, B. Z.; Wrenn, B. A.; Basak, S.; Biswas, P.; Giammar, D. E. Environmental Science & Technology Sep 1 Volume: 42 Issue: 17 p.: 6526-6531 (2008) Doi 10.1021/Es800620f
Elemental and molecular evidence of soot- and char-derived black carbon inputs to New York City's atmosphere during the 20th century Louchouarn, P.; Chillrud, S. N.; Houel, S.; Yan, B. Z.; Chaky, D.; Rumpel, C.; Largeau, C.; Bardoux, G.; Walsh, D.; Bopp, R. F. Environmental Science & Technology Jan 1 Volume: 41 Issue: 1 p.: 82-87 (2007) Doi 10.1021/Es061304+
Combined application of delta C-13 and molecular ratios in sediment cores for PAH source apportionment in the New York/New Jersey harbor complex Yan, B. Z.; Abrajano, T. A.; Bopp, R. F.; Benedict, L. A.; Chaky, D. A.; Perry, E.; Song, J.; Keane, D. P. Organic Geochemistry Volume: 37 Issue: 6 p.: 674-687 (2006) DOI 10.1016/j.orggeochem.2006.01.013
Molecular tracers of saturated and polycyclic aromatic hydrocarbon inputs into Central Park Lake, New York City Yan, B. Z.; Abrajano, T. A.; Bopp, R. F.; Chaky, D. A.; Benedict, L. A.; Chillrud, S. N. Environmental Science & Technology Sep 15 Volume: 39 Issue: 18 p.: 7012-7019 (2005) Doi 10.1021/Es0506105