乐清市水产品中的重金属及砷污染状况调查  

Investigation of heavy metal and arsenic pollution in aquatic products in Yueqing

作　　者：胡立成[1] 张金怀[1] 

机构地区：[1]乐清市疾病预防控制中心,浙江乐清325600

出　　处：《中国卫生检验杂志》2017年第13期1937-1939,共3页Chinese Journal of Health Laboratory Technology

基　　金：乐清市软课题与社会发展项目(2012R007)

摘　　要：目的了解乐清市常见水产品中重金属及砷含量状况。方法利用氢化物发生原子荧光光谱法及石墨炉原子吸收分光光度法测定水产品中铅、镉、汞、砷、甲基汞、无机砷的含量,采用单因子污染指数法对测定结果进行分析与评价。结果 6项污染物指标均有检出,检出率以总汞为最高,达76.8%;而超标率以总砷为高,达5.79%;总砷、总汞和镉有超标现象。单因子污染指数提示水产品中铅、镉和总砷有不同程度的污染,砷污染状况最为严重。结论乐清市水产品检测结果表明,海水水产品贝类中的铅,甲壳类、贝类中的镉,鱼类中总砷为轻污染水平,而甲壳类、贝类和其他类水产品中的砷均达到重污染水平,其他水产品均处于正常的背景值范围内,提示应高度重视水产品安全和水域环境问题。Objective To investigate the contents of heavy metals and arsenic in aquatic products in Yueqing. Methods Using hydride generation atomic fluorescence spectrometry and graphite furnace atomic absorption spectrophotometric,the content of lead,cadmium,mercury,arsenic and methylmercury,inorganic arsenic in aquatic products were determined. The results were analyzed and evaluated with the method of single factor pollution index. Results 6 pollutant indexes were detected,and the detection rate of total mercury was the highest,up to 76. 8%; and the total arsenic exceed the standard rate,up to 5. 79%;the total arsenic,mercury and cadmium exceed the standard rate. The single factor pollution index hinted that the aquatic products have different degrees of pollution by lead,cadmium and arsenic,in which the arsenic pollution is the most serious. Conclusion The test results of seawater products in Yueqing showed that the contents of lead in shellfish,cadmium in crustaceans and shellfish,total arsenic in fish were at light pollution level,and the contents of arsenic in crustaceans,shellfish and other aquatic products reached the level of heavy pollution,other aquatic products were in the normal background value range. So attention should be paid to aquatic product safety and water environment problems

关 键 词：水产品 重金属 砷 污染 

分 类 号：R155.5[医药卫生—营养与食品卫生学]