| 北京市场常见淡水食用鱼体内农药残留水平调查及健康风险评价 |
| 摘要点击 3663 全文点击 2233 投稿时间：2012-03-28 修订日期：2012-06-11 |
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| 中文关键词 鱼 农药 健康风险评价 风险商 北京 |
| 英文关键词 freshwater fish pesticide health risk assessment risk quotient Beijing |
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| 中文摘要 |
| 利用超声波提取-气质联用法调查了北京市不同水产品市场4种常见淡水食用鱼体内25种农药的残留水平,并利用商值法评价了农药的潜在健康风险. 在采集的48个样品中,除七氯、o,p'-DDT、敌敌畏、对硫磷、毒死蜱、仲丁威和久效磷以外,其余18种农药均有不同程度检出. 其中,检出率最高的为乙草胺(97.9%)和β-六六六(93.8%); 检出农药含量最高的为百菌清(1779.4 μg·kg-1),其次为溴氰菊酯(620.3 μg·kg-1). 鱼体中有2~10种农药共存,其总浓度为2.7~1932 μg·kg-1. 潜在健康风险评价结果表明,按照北京市民的平均水产品消费量,北京水产品市场上的4种主要食用鱼中的农药风险商值为0.04343,处于较低水平. |
| 英文摘要 |
| Health risks by fish consumption were assessed following the investigation of the residual levels of 25 pesticides in four kinds of freshwater fish from 4 aquatic product markets in Beijing using ultrasonic extraction-GC-MS. Eighteen pesticides were detected from the 48 samples collected. Acetochlor (97.9%) and β-HCH (93.8%) showed high detection rates. The pesticide detected in highest concentration was chlorothalonil (1779.4 μg·kg-1), followed by deltamethrin (620.3 μg·kg-1). Coexistence of 2-10 kinds of pesticides in fish was found with the total pesticide concentration in range of 2.7-1932 μg·kg-1. Based on the averaged fish consumption of Beijing residents, the health risk of the studied pesticides by freshwater fish consumption was calculated as 0.04343, suggesting a relatively low health risk. |
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