黄河流域有机氯农药的浓度水平及污染特征

被引：11

作者：

王会霞 ^{[1
]}

马玉龙 ^{[2
]}

李光耀 ^{[2
]}

金军 ^{[2
,3
]}

何畅 ^{[2
]}

李秋旭 ^{[2
]}

王英 ^{[2
]}

机构：

[1] 北京建工金源环保发展股份有限公司

[2] 中央民族大学生命与环境科学学院

[3] 北京市食品环境与健康工程技术研究中心

来源：

环境科学与技术 | 2017年 / 11期

关键词：

有机氯农药; 黄河流域; 表层水体; 沉积物; 分配系数; 污染源分析;

D O I：

暂无

中图分类号：

X592 [农用化学物质、有毒化学物质污染及其防治];

学科分类号：

082803 ;

摘要：

有机氯农药（OCPs）在中国大量的生产和使用给生态环境安全和人群健康造成了严重的威胁,但目前关于黄河全流域OCPs的污染状况还不清楚。该研究从青藏高原到黄河入海口采集了黄河流域10个采样点的表层水及沉积物样品,分析了样品中16种OCPs的浓度水平。黄河流域表层水体∑16OCPs的浓度为0.67～4.9 ng/L,其中滴滴涕（DDTs）、六六六（HCHs）和六氯苯（HCB）是最主要的OCPs,分别占∑16OCPs的55%、28%和15%;黄河流域沉积物中∑16OCPs的浓度为0.17～1.4 ng/g干重,DDTs和HCB是最主要的污染物,分别占∑16OCPs的67%和28%。DDT工业品的输入可能是黄河流域DDTs污染的主要来源,其中p,p’-DDT是黄河流域最主要的DDTs污染物。对于HCHs、HCB、硫丹和氯丹而言,部分地区可能存在一定的新源输入,但总体而言黄河流域HCHs、HCB、硫丹和氯丹的污染以历史残留为主,新源输入相对有限,而沉积物的释放可能是水中上述污染物的重要来源。

引用

页码：160 / 166

页数：7

共 19 条

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