Environmental Behavior and Risk Assessment of Organic Phosphorus Pesticides at Water from Jiulong River Estuary
- 海洋环境－已发表论文 
利用SPE GC FPD测定了九龙江口水体中 1 7种有机磷农药的浓度 ,总有机磷农药 (1 7种 )的含量范围是1 3 4 8～ 3 5 4 6ng/L ,平均 2 2 7 2ng/L .对其各组分的含量与行为特征进行分析表明 ,5种有机磷农药 (甲胺磷、敌敌畏、马拉硫磷、氧乐果、乐果 )在各站位均占主要部分 ,其行为受复杂的来源输入及河口的水动力影响 .对九龙江口水体中的有机磷农药的含量与其他地区进行比较 ,评价了该河口水体中有机磷农药的污染水平及风险概率Organic phosphorus pesticides (OPPs) were determined by SPE-GC-FPD. The contents of the total seventeen OPPs ranged from 134.8ng/L to 354.6ng/L (the mean was 227.2ng/L) at water in Jiulong River Estuary (JLRE). The distribution and behavior characteristics of OPPs indicated that five main OPPs (Methamidophos, Dichlorvos, Malathion, Omethoate, Dimethoate) were predominant of the total OPPs, which were affected by the complicated hydrological kinetics. When compared with other areas, the OPPs concentration level in JLRE was some moderate. But the risk evaluation of OPPs in JLRE indicated that some kinds of OPPs (Methamidophos, Dichlorvos, Omethoate) had threat to the ecological environment and human health.