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上海市宝山区月浦镇4种野生淡水鱼类有害重金属元素 铅、镉、汞含量的分析和风险评价
叶素梅,王文华,赵彦斌
0
(上海震旦职业学院,上海 201908)
摘要:
为了检测和评估上海市宝山区月浦镇野生淡水鱼肉中的重金属含量和危害,用石墨炉原子吸收分光光度法测定4种淡水鱼的鱼肉、鱼头、肝脏里的重金属铅及镉的含量;用原子荧光分光光度法测定鱼肉、鱼头、肝脏里的重金属汞的含量,用单因子指数法和Nemero综合指数法评价其安全性。结果显示,目前宝山区月浦镇4种野生淡水鱼鳊鱼、鲫鱼、鲢鱼和草鱼鱼肉中铅、镉、汞重金属含量均低于相应的国家限量标准,是健康安全的,但是4种鱼体内铅含量明显高于其他2种重金属;由于鱼肝的生物富集作用,其综合污染水平明显高于鱼头和鱼肉。
关键词:  淡水鱼  重金属  单因子指数;Nemero多因子指数;测定  评价
DOI:10.13610/j.cnki.1672-352x.20150302.027
投稿时间:2014-10-20
基金项目:山东省自然科学科学基金青年基金项目(ZR2014CQ009), 滨州市2013年科技发展计划项目(2013GG0304), 山东省现代农业产业技术体系生猪产业创新团队(SDAIT-06-011-14)共同资助。
Detection and risk assessment of the toxic heavy metals in four wild freshwater fishes from Yuepu Town, Baoshan District, Shanghai
YE Sumei,WANG Wenhua,ZHAO Yanbin
(Shanghai Aurora Vocational College, Shanghai 201908)
Abstract:
Detection and risk assessment of the contents of heavy metals in four wild freshwater fishes from Yuepu Town, Baoshan District of Shanghai were carried out. The contents of Pb, Cd and Hg in the belly, head and liver of Breams, Crucians, Hypophthalmichthys Molitrixes or Grass Carps were determined using a graphite furnace atomic absorption spectrometer for Pb and Cd and an atomic fluorescence spectrometer for Hg. The contamination level of each metal was assessed by Single Indexes and Nemero Multiple Indexes. The results showed that the four wild freshwater fishes were safe to eat because the heavy metal levels in their bodies were below the national limited standards. However, the content of Pb was higher than that of Cd and Hg and the Multiple Factors Indexes of the three heavy metals in the liver were higher than those in other tissues because of the liver’s metal-enriching function.
Key words:  wild freshwater fish  heavy metals  single indexes  Nemero multiple indexes  detection  assessment

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