| 流溪河水体有机氯农药的生态风险评价 |
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| 引用本文： | 汤嘉骏,刘昕宇,詹志薇,解启来,李斌,徐晨,贾妍燕.流溪河水体有机氯农药的生态风险评价[J].环境科学学报,2014,34(10):2709-2717. |
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| 作者姓名： | 汤嘉骏 刘昕宇 詹志薇 解启来 李斌 徐晨 贾妍燕 |
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| 作者单位： | 华南农业大学资源环境学院;土壤环境与废物资源农业利用广东高校重点实验室;珠江流域水环境监测中心;东莞市环境保护局; |
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| 基金项目： | 水利部948项目(No.201111)~~ |
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| 摘 要： | 通过检测流溪河水体18个采样点水样中的有机氯农药浓度,构建了淡水生物对有机氯农药的物种敏感性分布,并计算出各类水生生物的HC5(Hazardous Concentration for 5%the Species)值,预测了不同浓度有机氯农药对生物的潜在影响比例(Potential Affected Fraction,PAF),最后采用商值概率分布法对流溪河水体的有机氯农药进行了生态风险评价.结果表明:流溪河水体中的有机氯农药浓度在216.41~389.70 ng·L-1之间,平均值为293.02 ng·L-1;甲体六六六(α-BHC)的HC5值最高,而硫丹硫酸酯和p,p'-滴滴滴(p,p'-DDD)对全部物种的HC5值均低于0.10μg·L-1,对生态系统的影响较大;当污染物的浓度达到0.50μg·L-1时,除甲体六六六、七氯之外,其余9种有机氯农药对全部物种的PAF值均超过了5%的阈值;除硫丹Ⅱ外,其余10种有机氯农药均具有潜在的生态风险;在假定保护95%物种的情况下,硫丹硫酸酯的生态风险最高.
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| 关 键 词： | 有机氯农药 物种敏感性分布 概率风险评价 |
| 收稿时间： | 2013/12/6 0:00:00 |
| 修稿时间： | 3/2/2014 12:00:00 AM |
Ecological risk assessment of organochlorine pesticides OCPs in water of Liuxi River |
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| TANG Jiajun,LIU Xinyu,ZHAN Zhiwei,XIE Qilai,LI Bin,XU Chen and JIA Yanyan.Ecological risk assessment of organochlorine pesticides OCPs in water of Liuxi River[J].Acta Scientiae Circumstantiae,2014,34(10):2709-2717. |
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| Authors: | TANG Jiajun LIU Xinyu ZHAN Zhiwei XIE Qilai LI Bin XU Chen and JIA Yanyan |
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| Institution: | College of Natural Resources and Environment,South China Agricultural University,Guangzhou 510640;Key Laboratory of Soil Environment and Waste Reuse in Agriculture of Guangdong Higher Education Institutes,Guangzhou 510640;College of Natural Resources and Environment,South China Agricultural University,Guangzhou 510640;The Pearl River Water Environment Monitoring Center,Guangzhou 510611;College of Natural Resources and Environment,South China Agricultural University,Guangzhou 510640;Environmental Protection of Dongguan,Dongguan 523009;College of Natural Resources and Environment,South China Agricultural University,Guangzhou 510640;Key Laboratory of Soil Environment and Waste Reuse in Agriculture of Guangdong Higher Education Institutes,Guangzhou 510640;College of Natural Resources and Environment,South China Agricultural University,Guangzhou 510640;Key Laboratory of Soil Environment and Waste Reuse in Agriculture of Guangdong Higher Education Institutes,Guangzhou 510640;College of Natural Resources and Environment,South China Agricultural University,Guangzhou 510640;Key Laboratory of Soil Environment and Waste Reuse in Agriculture of Guangdong Higher Education Institutes,Guangzhou 510640;College of Natural Resources and Environment,South China Agricultural University,Guangzhou 510640;Key Laboratory of Soil Environment and Waste Reuse in Agriculture of Guangdong Higher Education Institutes,Guangzhou 510640 |
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| Abstract: | |
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| Keywords: | organochlorine pesticides|species sensitivity distributions|probability risk assessment |
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