| 青狮潭库区水体中有机氯农药分布及其健康风险评价 |
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| 引用本文： | 宋严,梁延鹏,曾鸿鹄,覃礼堂,莫凌云.青狮潭库区水体中有机氯农药分布及其健康风险评价[J].工业安全与环保,2016(10):68-71. |
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| 作者姓名： | 宋严 梁延鹏 曾鸿鹄 覃礼堂 莫凌云 |
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| 作者单位： | 桂林理工大学环境科学与工程学院 广西桂林541004 |
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| 基金项目： | 国家自然科学基金(51268008、51578171)，广西高等学校高水平创新团队及卓越学者计划项目。 |
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| 摘 要： | 采用固相萃取-气相色谱/电子捕获检测器(SPE-GC/ECD)对青狮潭库区水体中有机氯农药(OCPs)的组成、分布特征及健康风险进行了分析。结果表明,六六六(HCHs)、滴滴涕(DDTs)分别占所检出15种OCPs总量的28.93%~79.88%和2.66%~54.62%,特征组分比例表明HCHs和DDTs均源自历史残留。研究区域水体中OCPs质量浓度大小呈现为池塘西湖溪流东湖。青狮潭库区20个采样点水体中OCPs健康风险值为6.50×10-9~4.05×10-7a-1,远低于国际辐射防护委员会(ICRP)推荐的最大可接受值,表明该区域水体中OCPs对人体健康风险处于较低水平。
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| 关 键 词： | 有机氯农药 残留特征 健康风险 青狮潭 |
Distribution and Health Risk Assessment of Organochlorine Pesticides in the water of Qingshitan Reservoir |
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| Abstract: | The method of SPE-GC/ECD is applied to analyze the composition ,distribution and health risk of 15 kinds of organochlorine pesticides (OCPs) in water of Qingshitan Reservoir .The result shows that HCHs and DDTs respectively ac-counts for 28 .93% ~79 .88% and 2 .66% ~54 .62% of the total 15 kinds of OCPs and according to the ratio of feature components ,both HCHs and DDTs are from historical residues .The concentrations of OCPs in the 20 sample collected from the reservoir varies ,indicating chitang> xihu>xiliu>donghu .The values of health risks of 20 samples water range from 6 .50 × 10-9~4 .05 × 10-7 a-1 ,far below the acceptable maximum recommended by ICRP .Therefore ,it is indicated that the health risks OCPs in the reservoir is at a low level . |
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| Keywords: | organochlorine pesticides residue characteristic health risk Qingshitan |
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