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湖北鸭儿湖表层沉积物与鱼体中Hg质量比的相关性研究
Authors
徐盈
惠阳
汤庆合
王文华
Publication date
1 January 2005
Publisher
Abstract
采用固/液Hg自动分析仪,对采自湖北鸭儿湖氧化塘的鲢鱼、鳙鱼及表层沉积物(0~20cm)中Hg质量比进行了检测。1998年采集的畸形鲢鱼鱼肉中Hg的平均质量比为(1.723±0.926)mg/kg(n=5),分别是美国FDA人体健康影响标准(1.0mg/kg)和我国食品卫生标准(0.3mg/kg)的3.2倍和10.6倍,超标率均达100%;2002年采集的畸形鲢鱼、畸形鳙鱼鱼肉中Hg的平均质量比分别为(0.572±0.118)mg/kg(n=10)和(0.739±0.118)mg/kg(n=10),是我国Hg食品卫生标准的1.9倍和2.5倍,超标率达100%。沉积物中Hg的平均质量比为5.08mg/kg。两年采集的鸭儿湖氧化塘鱼肉、表层沉积物中总Hg质量比的分析和比较表明,表层沉积物中Hg质量比与鱼体内Hg质量比呈明显的正相关性(R=0.959)。研究结果表明,污水养鱼中Hg通过食物链所导致的食品安全问题应引起人们高度关注
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Institute of Hydrobiology, Chinese Academy Of Sciences
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oai:ir.ihb.ac.cn:342005/40431
Last time updated on 23/01/2021