白洋淀湿地表层沉积物多环芳烃的分布、来源及生态风险评价

被引:28
作者
周怀东 [1 ]
赵健 [2 ]
陆瑾 [2 ]
王雨春 [2 ]
袁浩 [2 ]
万晓红 [2 ]
机构
[1] 河海大学水文水资源学院
[2] 中国水利水电科学研究院水环境研究所
关键词
多环芳烃; 白洋淀湿地; 表层沉积物; 生态风险评价;
D O I
暂无
中图分类号
X502 [污染分析与测定];
学科分类号
摘要
对白洋淀湿地表层沉积物15种多环芳烃含量进行了检测.结果表明,其总含量范围为324.6~1738.5ng·g-1,整体来看,白洋淀湿地多环芳烃污染处于中等偏低污染水平.多环芳烃组成主要以2~3环、4环为主,其含量分别占总含量的47.8%、28.6%.白洋淀湿地表层沉积物多环芳烃主要以化石燃料、木柴及生物质低温燃烧来源为主,个别样点受油类排放污染严重.风险评价表明,严重的多环芳烃生态风险在白洋淀湿地表层沉积物中不存在,但是在部分区域某些多环芳烃含量超过了效应区间低值(ERL),可能存在着对生物的潜在危害.
引用
收藏
页码:291 / 299
页数:9
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