Organochlorine pesticides in surface sediments and suspended particulate matters from the Yangtze estuary, China.
Organochlorine pesticides in surface sediments and suspended particulate matters from the Yangtze estuary, China.
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DOI：
10.1016/j.envpol.2007.12.015
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发表时间：
2008-11
影响因子：
8.9
通讯作者：
Min Liu;Shu-bo Cheng;D. Ou;Yi Yang;Hua-lin Liu;L. Hou;Lei Gao;Shiyuan Xu
中科院分区：
文献类型：
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作者：
Min Liu;Shu-bo Cheng;D. Ou;Yi Yang;Hua-lin Liu;L. Hou;Lei Gao;Shiyuan Xu
表层沉积物(SS)中总六六六和总滴滴涕含量分别为0.5~17.5 ng−1和0.9~33.1 ng−1，平均为6.0和8.2 ng−1。悬浮颗粒物中总六六六和滴滴涕含量变化范围为6.2~14.8ngg−1，平均值为12.3ng−1，平均值为3.4~25.7 ng−1，平均值为16.4ngg−1。林丹是六氯环己烷的主要来源，在长三角地区继续使用“纯”γ-六氯环己烷(林丹)，而不是技术六氯环己烷(主要是α-六氯环己烷和一些γ-六氯环己烷的混合物)。悬浮物中的滴滴涕主要是历史积累的。然而，SPM中高含量的DDT是2002-2004年间典型的三氯杀螨型DDT新增投入的指标。可以看出，大多数来自长江口的样本都在预计会产生不利生物影响的范围内，或偶尔或经常发生。
Total HCHs' and total DDTs' levels in surface sediments (SS) ranged from 0.5 to 17.5ngg−1and from 0.9 to 33.1ngg−1, averaged 6.0 and 8.2ngg−1, respectively. Total HCHs' and total DDTs' levels in suspended particulate matters (SPM) varied from 6.2 to 14.8ngg−1with a mean value of 12.3ngg−1and were from 3.4 to 25.7ngg−1with an average of 16.4ngg−1, respectively. Lindane is the main HCHs' source and continuing use in the Yangtze Delta areas of ‘pure’ γ-HCH (lindane) rather than technical HCH (a mix of largely α- and some γ-HCH). DDTs in SS are mainly accumulated in history. However, high DDT fractions in SPM are indicators of new input of typical dicofol type DDT from 2002 to 2004. It can be seen that most samples from the Yangtze estuary were in ranges where adverse biological effects are expected, either occasionally or frequently.