%0 Journal Article
%T Halogenated Polycyclic Aromatic Hydrocarbons in Surface Sediments of Maozhou River, Shenzhen<br>深圳茅洲河表层沉积物卤代多环芳烃污染研究
%A SUN Jian-lin
%A NI Hong-gang
%A DING Chao
%A ZENG Hui
%A <br>孙建林
%A 倪宏刚
%A 丁超
%A 曾辉
%J 环境科学
%D 2012
%I 
%X Surface sediments collected from the Maozhou River watershed in Shenzhen were analyzed for the concentration levels and spatial distribution characteristics of halogenated polycyclic aromatic hydrocarbons (HPAHs) using GC-MS. Total concentrations of three chlorinated polycyclic aromatic hydrocarbons (ClPAHs) and six brominated polycyclic aromatic hydrocarbons (BrPAHs) of concern ranged from 3.00 to 301 ng·g-1 and 7.52 to 285 ng·g-1, respectively. Source appointments indicated that the HPAHs in these surface sediments were mainly derived from waste incineration, fossil fuel combustion, vehicle emission, and burning of crop straw, accounting for 40%, 20.5% 11.9%, and 11.7% of the total loading, respectively. Additionally, the toxic equivalency quotients (TEQ) of total ClPAHs and BrPAHs ranged from 7.95 to 38.1 pg·g-1 and 38.1 to 105 pg·g-1 respectively. Finally, the relationships between the HPAHs levels and different land use types were examined. Results indicated that the levels of HPAHs in surface sediments showed a decreasing trend after the first increase to the peak with the density of industrial land, but inversely proportional to the density of agricultural land.
%K halogenated polycyclic aromatic hydrocarbons(HPAHs)
%K surface sediment
%K source identification
%K land use types
%K Shenzhen<br>卤代多环芳烃
%K 表层沉积物
%K 来源解析
%K 土地利用类型
%K 深圳市
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=B5A93E035C82D3EF603537FC6DF853D4&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=9CF7A0430CBB2DFD&sid=DCEC7F681FD458B7&eid=A0157EB1E2B4EC8F&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=30