Residues of organochlorine pesticides (OCPs) in upper reach of the Huaihe River, East China

详细信息    查看全文

• 作者：Jinglan Feng^a ;   ; ^{fengjl1123@yahoo.com.cn} ; Mengxiao Zhai^a ;   ; ^{zhaimengxiao@126.com} ; Qun Liu^b ;   ; ^{ldqun@yahoo.com.cn} ; Jianhui Sun^a ;   ; ^{sunjh_hj@yahoo.com.cn} ; Jiajia Guo^a
• 关键词：Distribution ; HCHs ; DDTs ; Surface water ; Suspended particulate matter ; The Huaihe River
• 刊名：Ecotoxicology and Environmental Safety
• 出版年：2011
• 出版时间：November 2011
• 年：2011
• 卷：74
• 期：8
• 页码：2252-2259
• 全文大小：489 K

文摘

Residues of HCHs and DDTs in surface water and suspended particulate matter (SPM) from upper reach of the Huaihe River, East China, were investigated. Levels of total HCHs (¡ÆHCH) and total DDTs (¡ÆDDT) in water detected by GC-ECD ranged from 0.85 to 12.77 ng L^? and from 3.54 to 33.59 ng L^?, respectively. According to European and America water quality guidelines, HCHs were within safe levels while DDT would pose adverse biological effects. Distribution of OCPs in water indicated that input of tributaries was important factor for the Huaihe River. For OCPs in SPM, concentrations varied from 1.01 to 25.22 ng g^? for ¡ÆHCH and not detected to 4.74 ng g^? for ¡ÆDDT. Compared with sediment quality guidelines, HCHs and DDTs might have an ecological risk. The main reason for OCPs residues in the Huaihe River was usage of lindane and technical DDT. Furthermore, composition of DDTs reflected fresh inputs of dicofol mixture in some sites.