摘要
调查了沈阳市细河河水及其沿岸地下水水质中石油类和美国环保局(USEPA)"黑名单"上的16种优先控制多环芳烃(PAHs)的有机污染现状,评价细河污染带来的生态风险。结果表明:细河河水中石油类浓度和16种PAHs总浓度范围分别为0.031～1.819mg.L-1和0.026～0.384μg.L-1,平均浓度分别为1.007mg.L-1和0.151μg.L-1;细河沿岸地下水中石油类浓度和16种PAHs总浓度范围分别为0.020～0.987mg.L-1和0.051～0.389μg.L-1,平均浓度分别为0.364mg.L-1和0.133μg.L-1;细河河水和地下水中的石油类污染严重;河水中的PAHs浓度在流经规模较大的城镇或乡镇处出现高值点,苯并(b)荧蒽和苯并(k)荧蒽在河水与地下水中的检出率较高,对水生生态系统健康构成了潜在的威胁。
The contamination status of the surface water of Xihe River and its riverbank groundwater by petroleum and 16 polycyclic aromatic hydrocarbons （PAHs） in the black list of pollutants by USEPA, as well as the possible ecological risk of these pollutants were evaluated. Results showed that the concentration ranges of petroleum and 16 PAHs （TpAHs） in the surface water of Xihe River were of 0. 031-1. 819 mg· L^-1 and 0. 026-0. 384μg · L^-1, respectively, with the average concentrations of 1. 007 mg· L^-1 and 0. 151 μg · L^-1 , respectively. The concentration ranges of petroleum and 16 PAHs （ TpAHs ） in the groundwater were of 0. 020-0. 987 mg· L^-1 and 0. 051-0. 389 μg · L^-1, respectively, with the average concentrations of 0. 364 mg· L^-1 and 0. 133 μg · L^-1, respectively. The surface water of Xihe River and its riverank groundwater were heavily contaminated by petroleum. PAH concentrations in the surface water of Xihe River were higher at sites of large towns and villages. Widely existing benzo（b） fluoranthene and benzo （k）fluoranthene out of the 16 PAHs was found in these samples, which would exert potential hazards on the aquatic ecosystem.
出处
《生态学杂志》
CAS
CSCD
北大核心
2007年第12期2057-2061,共5页
Chinese Journal of Ecology
基金
国家自然科学基金项目(20477029)
辽宁省辽河流域农业地质调查项目
沈阳市科技攻关资助项目(1053115-101)
关键词
细河
地下水
有机污染
石油
多环芳烃
Xihe River
groundwater
organic pollution
petroleum
PAH
