SUN Yuan-yuan,ZHANG Zu-lu,LI Shuang.Organic Pollution and Ecological Risk of PAHs in the Surface Sediment of Nansihu Lake, Shandong Province of China[J].Research of Soil and Water Conservation,2012,19(04):142-146,152.
南四湖表层底泥中多环芳烃有机污染及其生态风险研究
- Title:
- Organic Pollution and Ecological Risk of PAHs in the Surface Sediment of Nansihu Lake, Shandong Province of China
- Keywords:
- Nansihu Lake; surface sediment; PAHs; distribution; ecological risk
- 分类号:
- X131.3;P941.78
- 摘要:
- 通过对南四湖9个采样点表层底泥中16种美国EPA规定的优控PAHs的含量测定，分析了PAHs在南四湖表层底泥中的分布特征、来源，进而对其生态风险进行了评价。结果表明：河口区的PAHs含量最高，主要是受污染严重的入湖河流的影响。微山岛和二级坝附近表层底泥中PAHs的含量与湖内其他点位相比较高，且上级湖的含量要高于下级湖的含量。表层沉积物中PAHs主要来源于化石燃料的不完全燃烧，但也存在一定的石油污染。南四湖表层底泥中的PAHs生态风险很小，未对生物造成不利影响，属于轻微污染水平。
- Abstract:
- The distribution and sources of PAHs in the surface sediment in Nansihu Lake were analyzed and the ecological risk of the lake was evaluated through examining 16 PAHs setting by EPA in 9 samples of the surface sediment of Nansihu Lake. The results showed that the content of PAHs in estuary was the highest and was influenced by the seriously polluted rivers from which flew into the lake. The contents of PAHs in the samples near the Weishan Island and the second dam were much higher than in the samples of the internal lake which was higher in the higher lake than in the lower lake. The PAHs in the surface sediment mainly come from the incomplete combustion, but it also contained some oil pollution. The ecological risk of the surface sediment in Nansihu Lake was low and had not adversely affected the creatures. So the organic pollution belonged to the slight contamination in the lake.
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备注/Memo
收稿日期:2011-12-17;修回日期:2012-3-6
基金项目:国家重大水专项项目“南水北调东线南四湖水质综合改善方案及集成技术与示范”（2009ZX07210-007-01）
作者简介:孙媛媛（1988- ），女，山东淄博人，硕士研究生，主要研究方向为水资源与水环境。E-mail：sunyuanyuan829@163.com。
通讯作者:张祖陆（1949- ），男，上海嘉定人，教授，博士生导师，主要研究方向为水资源与水环境。E-mail：zulzhang@126.com。