TitleSpatial distribution and seasonal variation of atmospheric bulk deposition of polycyclic aromatic hydrocarbons in Beijing-Tianjin region, North China.
Publication TypeJournal Article
Year of Publication2011
AuthorsWang, W, Simonich, SLMassey, Giri, B, Xue, M, Zhao, J, Chen, S, Shen, H, Shen, G, Wang, R, Cao, J, Tao, S
JournalEnviron Pollut
Date Published2011 Jan
KeywordsChina, Environmental Monitoring, Polycyclic Hydrocarbons, Aromatic, Seasons

Bulk deposition samples were collected in remote, rural village and urban areas of Beijing-Tianjin region, North China in spring, summer, fall and winter from 2007 to 2008. The annually averaged PAHs concentration and deposition flux were 11.81±4.61 μg/g and 5.2±3.89 μg/m2/day respectively. PHE and FLA had the highest deposition flux, accounting for 35.3% and 20.7% of total deposition flux, respectively. More exposure risk from deposition existed in the fall for the local inhabitants. In addition, the PAHs deposition flux in rural villages (3.91 μg/m2/day) and urban areas (8.28 μg/m2/day) was 3.8 and 9.1 times higher than in background area (0.82 μg/m2/day), respectively. This spatial variation of deposition fluxes of PAHs was related to the PAHs emission sources, local population density and air concentration of PAHs, and the PAHs emission sources alone can explain 36%, 49%, 21% and 30% of the spatial variation in spring, summer, fall and winter, respectively.

Alternate JournalEnviron. Pollut.
PubMed ID20888097
PubMed Central IDPMC3719861
Grant ListP30 ES000210 / ES / NIEHS NIH HHS / United States
P30ES00210 / ES / NIEHS NIH HHS / United States
P42 ES016465 / ES / NIEHS NIH HHS / United States
P42 ES016465 / ES / NIEHS NIH HHS / United States