葫芦岛海产品重金属含量及健康风险分析

生态学杂志

葫芦岛海产品重金属含量及健康风险分析

高蜜¹,吴星¹,Paul L. Klerks²,陈红星¹,谢凌天^1*

(¹中国科学院污染生态与环境工程重点实验室，中国科学院沈阳应用生态研究所，沈阳 110016；^2路易斯安那大学拉斐特分校，拉斐特 42451， LA 70504，美国)

出版日期:2016-01-10 发布日期:2016-01-10

Metal levels in seafood of the Huludao coast and associated health risks.

GAO Mi¹, WU Xing¹, Paul L. Klerks², CHEN Hong-xing¹, XIE Ling-tian^1*

(¹ Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; ² Department of Biology, University of Louisiana at Lafayette, P.O. Box 42451, Lafayette, LA 70504, USA)

Online:2016-01-10 Published:2016-01-10

摘要/Abstract

摘要： 通过测定葫芦岛海滨常见6种海洋生物体内Cr、Ni、Zn、Cu、Cd和Pb的含量，并与国内其他地区同类生物中的金属含量进行比较，评价了采样物种污染程度。在此基础上，以日摄食量(DI)、目标危害系数(THQ)和目标致癌系数(TR)为考量指标，分别评价了当地居民中成人和儿童摄食此类海产品可能导致的健康风险。结果表明：葫芦岛海滨常见海产品体内重金属平均含量顺序为Zn>Cu>Ni>Cd>Cr>Pb，脉红螺(Rapana venosa)和短滨螺(Littorina brevicula)体内Cd污染较为严重，鮻(Liza carinatus)受到了Zn的污染，紫贻贝(Mytilus galloprovincialis)、海带(Ulvaceae)和日本蟳(Charybdis japonica)体内的重金属含量则低于相关的污染评价标准；对于Cd而言，摄食短滨螺、紫贻贝和脉红螺的DI值大于参考值（1 μg·kg^-1·d^-1），THQ值均大于1，最大可达到7.4；对Pb来说，居民食用海带、短滨螺和脉红螺后的TR值高于可接受水平（>10^-6）。本研究中所调查的部分生物受到了不同程度的重金属污染，当地居民长期食用此类海产品存在潜在的健康风险，其中成人受危害的程度高于儿童，Cd和Pb的摄食风险尤其应当受到重视。

关键词: 林窗, 粗木质残体, 养分, 苔藓, 高山森林

Abstract: In this paper, levels of 6 heavy metals in 6 species from Huludao coast were determined and compared with those in species from other coasts of China. We used daily food intake (DI), target hazard quotients (THQ) and target carcinogenic risk (TR) to evaluate the health risks of local residents via consumption of seafood. Our results showed that there was a decreasing order of heavy metal levels in these organisms: Zn>Cu>Ni>Cd>Cr>Pb. Littorina brevicula and Rapana venosa were seriously polluted by Cd. Liza carinatus was also polluted by Zn. However, metal levels in Ulvaceae, Mytilus galloprovincialis and Charybdis japonica were relatively low. Our comparison of estimated daily intake values for human consumption of the seafood species with the FAOrecommended daily dietary allowances indicated potential health risks associated with the intake of Cd from M. galloprovincialis, L. brevicula and R. venosa. An analysis of THQ identified a noncarcinogenic health risk from Cd in M. galloprovinciali, L. brevicula and R. venosa. Moreover, an analysis of cancer risk from Pb ingestion detected an increased risk for consumption of L. brevicula and R. venosa. Health risks seemed especially pronounced for consumption of L. brevicula and R. venosa. In addition, adults had higher risks than children due to more food intake and longer exposure time. The seafood advisory may be warranted for these mollusks.

Key words: bryophyte, coarse woody debris, gap, alpine forest., nutrient

高蜜1,吴星1,Paul L. Klerks2,陈红星1,谢凌天1*. 葫芦岛海产品重金属含量及健康风险分析[J]. 生态学杂志.

GAO Mi1, WU Xing1, Paul L. Klerks2, CHEN Hong-xing1, XIE Ling-tian1*. Metal levels in seafood of the Huludao coast and associated health risks.[J]. cje.

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