福建闽南沿海养殖牡蛎食用健康风险评估

发布时间：2018-01-15 12:37

本文关键词：福建闽南沿海养殖牡蛎食用健康风险评估　出处：《上海海洋大学学报》2017年06期 　论文类型：期刊论文

【摘要】：牡蛎能富集栖息环境中多种污染物,可做为监测海域污染状况的指示生物。为评估牡蛎食用安全性,采用2015年对福建闽南沿海主要牡蛎产区养殖牡蛎监测数据,计算不同海区牡蛎中主要污染物:无机砷、甲基汞、铅、镉、铜、多环芳烃、多氯联苯、六六六、DDT的暴露边界值(MOE)和总致癌风险指数(RTC),评估食用健康风险。结果表明:各污染物的平均暴露边界值在1.00×10~(-6)~0.111之间,均小于1;平均总致癌风险指数在2.88×10~(-5)~3.16×10~(-5)之间,未超过可接受风险水平1×10~(-4)。因此,闽南沿海养殖牡蛎的食用健康风险在可接受范围内。通过比较牡蛎中各种污染物的食用健康风险值及分析主要风险因子的分布与变化特征,发现闽南沿海养殖牡蛎食用健康风险主要来源于重金属,镉、铅、甲基汞的暴露边界值较高,无机砷对总致癌风险指数贡献率大;在所监测持久性有机污染物中,多氯联苯不仅暴露边界值远高于其他几种持久性有机污染物,其对总致癌风险指数的贡献也高于其他几种持久性有机污染物。因此,镉、铅、甲基汞、无机砷和多氯联苯应是闽南养殖牡蛎食用健康风险监控的重点。
[Abstract]:Oyster can enrich a variety of pollutants in the habitat, can be used as an indicator of the pollution in the sea area, and to evaluate the edible safety of oyster. Based on the monitoring data of oyster culture in the main oyster producing areas of southern Fujian province in 2015, the main pollutants of oyster in different sea areas were calculated: inorganic arsenic, methylmercury, lead, cadmium, copper, polycyclic aromatic hydrocarbons and polychlorinated biphenyls. The exposure boundary value (moe) and the total carcinogenic risk index (TCR) of 666 chloride-DDT. The results showed that the average exposure boundary value of each pollutant was between 1.00 脳 10 ~ (-1) ~ (-6) ~ 0.111, which was less than 1. The average total carcinogenic risk index was between 2.88 脳 10 ~ (-5) and 3.16 脳 10 ~ (-5), which did not exceed the acceptable risk level of 1 脳 10 ~ (-4). The edible health risk of oyster cultured in south Fujian coast is within acceptable range. The distribution and variation characteristics of main risk factors were analyzed by comparing the consumption health risk values of various pollutants in oyster. It was found that the exposure boundary value of heavy metals, cadmium, lead and methylmercury was high and the contribution rate of inorganic arsenic to the total carcinogenic risk index was high. Of the pops monitored, PCBs are not only exposed to a much higher boundary value than several other pops. Therefore, cadmium, lead, methylmercury, inorganic arsenic and polychlorinated biphenyls should be the focus of health risk monitoring for oyster cultured in South Fujian.
【作者单位】：福建省水产研究所;福建省海洋生物增养殖与高值化利用重点实验室;福建省海洋生物资源开发利用协同创新中心;
【基金】：基金项目:海洋食源生物质量安全防控及风险评估公共服务平台建设(闽海洋高新[2014]18号) 闽台重要海洋生物资源高值化开发技术公共服务平台(2014FJPT01) 福建重要海洋经济生物种质库与资源高效开发技术公共服务平台(14PZY017NF17)
【分类号】：X820.4
【正文快照】： 牡蛎是我国重要的海水经济贝类之一,福建沿海主要养殖品种有太平洋牡蛎(Crassostreagigas)、僧帽牡蛎(Ostrea cucullata)、近江牡蛎(Crassostrea rivularis)等。牡蛎以其味道鲜美,对人体有营养和多种保健功能,备受消费者青睐。牡蛎为滤食性生物,生长位置相对固定,相关研究表明

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