Organochlorine pesticides in soil, water and sediment along the Jinjiang River mainstream to Quanzhou Bay, southeast China.
Organochlorine pesticides in soil, water and sediment along the Jinjiang River mainstream to Quanzhou Bay, southeast China.
复制标题
DOI：
10.1016/j.ecoenv.2012.11.014
复制
发表时间：
2013-03
影响因子：
6.8
通讯作者：
Dan Yang;S. Qi;Jiaquan Zhang;Chenxi Wu;X. Xing
中科院分区：
文献类型：
--
作者：
Dan Yang;S. Qi;Jiaquan Zhang;Chenxi Wu;X. Xing
对晋江干流至泉州湾沿着水体、土壤和沉积物中有机氯农药（OCPs）的残留水平进行了监测，以阐明OCPs的来源和归宿。晋江流域表层土壤中有机氯农药的含量（HCHs为2.44± 1.97 ng/g，DDTs为11.4± 8.46 ng/g）与泉州湾表层土壤中的含量（HCHs为1.81± 2.15 ng/g，DDTs为9.72± 14.66 ng/g）相当。溶解相HCHs和DDTs的含量分别占总HCHs的55-94%和总DDTs的10 ~ 16%。研究发现，泉州湾悬浮颗粒物（SPM）与沉积物中的OCPs具有高度的相关性（p<0.01），表明悬浮颗粒物吸附的OCPs是泉州湾沉积物中OCPs的主要来源。使用亚麻布是研究区域内六氯环己烷的主要来源。晋江河水和泉州湾沉积物中发现三氯杀螨醇污染。根据沉积物质量基准，DDTs对晋江和泉州湾的生态毒理学风险较大。
Residue levels of organochlorine pesticides (OCPs) in multiple compartments (water, soil and sediment) along the Jinjiang River mainstream to Quanzhou Bay were monitored to elucidate sources and fate. The concentrations of OCPs in surface soil of the watershed of the Jinjiang River (2.44±1.97ng/g for hexachlorocyclohexanes (HCHs) and 11.4±8.46ng/g for dichlorodiphenyltrichloroethanes (DDTs)) and the Quanzhou Bay (1.81±2.15ng/g for HCHs and 9.72±14.66ng/g for DDTs) were comparable. The concentrations of HCHs and DDTs in dissolved phase were 55–94% for the total HCHs and ten to sixteen percent for the total DDTs in the Jinjiang River. High correlations of OCPs between suspended particulate matter (SPM) and sediment (p<0.01) were found in this study, which demonstrated that OCPs absorbed onto SPM was the major source in the sediment of Quanzhou Bay. The use of lindane was the major source of HCHs in the study region. Dicofol pollution was found in water of the Jinjiang River and sediment of Quanzhou Bay. Based on the sediment quality guidelines, DDTs pose more ecotoxicological risk in environment of the Jinjiang River and Quanzhou Bay.