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PAHs in aquatic sediment in Hangzhou, China: Analytical methods, pollution pattern, risk assessment and sources
作者姓名:ZHU Li-zhong  CAI Xe-fen  WANG Jing
作者单位:[1]Department of Environmental Science, Zhejiang University, Hangzhou 310028, China [2]Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China [3]Zhejiang Provincial Environmental Monitoring Centre, Hangzhou 310012, China
基金项目:The National Basic Research Program(973) of China(No. 2003CB415004)
摘    要:Eleven surface sediment samples, from Hangzhou section of Qiantang River and Jinghang Canal, west Lake the inland river were collected to investigate 17 polycycUc aromatic hydrocarbons(PAHs) pollution in aquatic sediments of Hangzhou. Accelerated solvent extraction(ASE) was used to extract PAHs from sediments with satisfactory recoveries. It was found that the total PAHs in the sediments ranged from 308.4 to 3037 ng/g dw, and PAHs pollution in sediments from Jinghang Canal were the heaviest. Lowest effect level(LEL) and severe effect level (SEL) sediment quality guidelines were introduced to perform risk assessment for PAHs pollution in aquatic sediments. Only one sample in Jinghang Canal had adverse impact on benthic organism. 2-3 ring PAHs had a noticeable contribution to total PAHs, especially NA, PHEN. A quantity method was used to determine the major source, the results showed petroleum origin was the chief source to PAHs pollution in all sediments with the exception of sediments from Jinghang Canal where combustion sources had a larger contribution.

关 键 词:浙江  杭州市  PAHs  环境污染  钱塘江  京杭大运河  ASE  水体污染
文章编号:1001-0742(2005)05-0748-08
收稿时间:2005-01-11
修稿时间:2005-03-02

PAHs in aquatic sediment in Hangzhou, China: Analytical methods, pollution pattern, risk assessment and sources
ZHU Li-zhong,CAI Xe-fen,WANG Jing.PAHs in aquatic sediment in Hangzhou, China: Analytical methods, pollution pattern, risk assessment and sources[J].Journal of Environmental Sciences,2005,17(5):748-755.
Authors:ZHU Li-zhong  CAI Xe-fen and WANG Jing
Institution:1. Department of Environmental Science, Zhejiang University, Hangzhou 310028, China
2. Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
3. Department of Environmental Science, Zhejiang University, Hangzhou 310028, China;Zhejiang Provincial Environmental Monitoring Centre, Hangzhou 310012, China
Abstract:Eleven surface sediment samples, from Hangzhou section of Qiantang River and Jinghang Canal, west Lake the inland river were collected to investigate 17 polycyclic aromatic hydrocarbons (PAHs) pollution in aquatic sediments of Hangzhou. Accelerated solvent extraction(ASE) was used to extract PAHs from sediments with satisfactory recoveries. It was found that the total PAHs in the sediments ranged from 308.4 to 3037 ng/g dw, and PAHs pollution in sediments from Jinghang Canal were the heaviest. Lowest effect level (LEL) and severe effect level (SEL) sediment quality guidelines were introduced to perform risk assessment for PAHs pollution in aquatic sediments. Only one sample in Jinghang Canal had adverse impact on benthic organism. 2-3 ring PAHs had a noticeable contribution to total PAHs, especially NA, PHEN. A quantity method was used to determine the major source, the results showed petroleum origin was the chief source to PAHs pollution in all sediments with the exception of sediments from Jinghang Canal where combustion sources had a larger contribution.
Keywords:PAHs  ASE  sediment  source  risk assessment
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