%0 Journal Article
%T Distribution and deposition of polycyclic aromatic hydrocarbons in precipitation in Guangzhou, South China<br>
%A HUANG Deyin
%A PENG Ping'an
%A XU Yigang
%A DENG Yunyun
%A DENG Hongmei
%A <br>
%J 环境科学学报(英文版)
%D 2009
%I 
%X Polycyclic aromatic hydrocarbons (PAHs) were measured in precipitation from March to August 2005 in Guangzhou, South China. Fourteen PAHs were studied, and their total concentrations varied from 616.6 to 3486.7 ng/L in dissolved phase and from 403.8 to 3125.5 ng/L in paniculate phase. The estimated deposition loading of PAHs was 3568 |xg/m2 during the monitoring period. The deposition of PAHs was a potential source for Pearl River comparing with the contents of surface water. In addition, the high concentration in precipitation here implied that PAHs pollution was a potential environmental problem in Guangzhou. Most precipitation concentrations of PAHs in March (the last month hi winter in Guangzhou) were higher than in the other months (in rainy season). PAHs inclined to be adsorbed to paniculate phase with the increase of molecular weight in rainwater. Combustion of fossil fuel and biomass might be the major source of PAHs, while the direct leakage or volatilization from petroleum products might be insignificant.
%K polycyclic aromatic hydrocarbons
%K distribution coefficient
%K deposition flux
%K precipitation
%K Guangzhou<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=85024629D92FA914B5837C29904D1388&yid=DE12191FBD62783C&vid=659D3B06EBF534A7&iid=94C357A881DFC066&sid=BBA8B1249CDAA6CE&eid=36C49E1242CC2C7A&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=1&reference_num=31