泉州地区克氏原螯虾重金属含量测定及评价
2015-10-21陈细香刘银铃陈秋月吴文杰
陈细香 刘银铃 陈秋月 吴文杰

摘要 [目的]了解泉州地区克氏原螯虾(Procambarus clarkii)的重金属含量及污染情况。[方法]随机收集泉州地区3个不同菜市场的克氏原螯虾180份,根据国标规定采用样品湿法消解消化法和火焰原子吸收光谱仪进行测定。[结果]镉检出范围为0~0.411 mg/kg,未超标;砷检出范围为0~0.518 mg/kg,超标率达0.9%;铅检出范围为0~0.424 mg/kg,未超标;汞检出范围为0.005~0.082 mg/kg,未超标;铬含量的检出范围0~3.178 mg/kg,超标率达2.78%;锰检出范围为0.03~32.64 mg/kg,超标率达4.6%。且不同组织器官中重金属含量不同。[结论]泉州地区的克氏原螯虾体内含量超标的重金属主要是砷、铬和锰,若长期食用这类克氏原螯虾将损害人体健康。
关键词 泉州地区;克氏原螯虾;重金属;评价
中图分类号 S945.1 文献标识码
A 文章编号 0517-6611(2015)03-151-03
Determination and Assessment of the Content of Heavy Metals in Procambarus clarkii Girard in Quanzhou Area
CHEN Xixiang1,2, LIU Yinling1, CHEN Qiuyue1 et al
(1. School of Chemistry & Life Science, Quanzhou Normal University, Quanzhou, Fujian 362000; 2. Key Laboratory of Molecular Biology and Medicinal Chemistry, Quanzhou Normal University, Quanzhou, Fujian 362000)
Abstract [Objective] To analyze and assess the content of heavy metals in Procambarus clarkii Girard in Quanzhou area. [Method] The heavy metals were detected with corresponding analysis techniques recommended in national criterion in 180 samples collected from 3 markets by FAAS. [Result] The detecting ranges and the over limit rates of Cd, As, Pb, Hg, Cr and Mn were 0-0.411 mg/kg and 0%, 0-0.518 mg/kg and 0.9%, 0-0.424 mg/kg and 0%, 0.005-0.082 mg/kg and 0%, 0-3.178 mg/kg and 2.78%, 0.03-32.64 mg/kg and 4.6%, respectively. The heavy metals distribute differently in different tissues and organs of Procambarus clarkii. [Conclusion] The mostly heavy metal pollutants beyond the national criterion were As, Cr and Mn in Procambarus clarkii of Quanzhou area, and longterm taking those Procambarus clarkii may be harmful to human health.
Key words Quanzhou area; Procambarus clarkii Girard; Heavy metal; Assessment
基金項目 泉州市科技计划项目(2010N14);福建省高校服务海西建设重点项目(A102);硕士学位授予单位立项建设学科(生物学)项目;福建省科技厅青年科技人才创新项目(2008F3095)。
作者简介 陈细香(1972- ),女,福建莆田人,副教授,博士,从事环境生态学研究。
收稿日期 20141203
随着我国居民生活水平的不断提高,食品安全问题越来越受到重视。近年来,随着社会经济的发展,大量处理不完全甚至未经处理的污染物排入江河,从而使水生生物赖以生存的环境受到各种外来物质的影响,其中重金属则是影响较大的一类污染物。
克氏原螯虾(Procambarus clarkii Girard),俗称淡水小龙虾,分类上隶属甲壳纲、十足目、螯虾亚目、螯虾科[1]。小龙虾分布范围很广,适应性很强,尤其对水质的要求并不高,在一些受轻度污染的水域,甚至在一些鱼类难以成活的水体也能生存[2]。……
