洋浦湾沉积柱中有机氯农药的垂直分布特征  

Vertical distribution characteristics of organo-chlorine pesticides in sediment core in Yangpu Bay

作　　者：兰兰[1] 祁士华[1] 胡英[1] 张婉珈[1] 谭凌智[1] 张家泉[1] 齐书蕾[1] 

机构地区：[1]中国地质大学生物地质与环境地质教育部重点实验室,湖北武汉430074

出　　处：《海洋环境科学》2010年第3期368-372,共5页Marine Environmental Science

基　　金：海南省地质调查院资助项目(200414200010)

摘　　要：利用GC-ECD和201Pb定年技术对海南洋浦湾沉积柱中有机氯农药含量与污染历史进行了研究。结果表明,DDTS含量在（0.14~8.92）×10-9之间,HCHs含量在（0.06~1.94）×10-9之间,说明DDTS对OCPs的输入起主要贡献作用。此外洋浦湾沉积柱中的OCPs、HCHs及DDTs含量的增长及高峰段基本都反映出在相应的时段中有机氯农药输入情况。由此可知,DDTs农药可能有新的输入,HCHs可能来自陆地土壤中的残留。同时通过地球化学预警发现到2021年我国有机氯农药可逐渐消失。The concentration and pollution history of the organochlorine pesticide in sedimentary core of Yangpu Bay were analyzed by GC-ECD and 201Pb dating technology.The results showed that the concentration of DDTs was（0.14～8.92）×10-9 and the concentration of HCHs was（0.06~1.94） ×10-9,iand DDTs played a major role in input of OCPs.The growth and the peak Paragraph of concentration of OCPs,HCHs and DDTs in the sedimentary core of Yangpu Bay reflected the input of organochlorine pesticides in the corresponding period.So,DDTs pesticides may have a new import,HCHs likely to come from the land of the residues in soil.Throughout geochemistry of early warning,organochlorine pesticides will gradually disappear after 2021 in China.

关 键 词：有机氯农药 洋浦湾 垂直分布 预警 海南省 

分 类 号：P736.41[天文地球—海洋地质]