| 多溴联苯醚在市场鲫鱼体内分布和食鱼暴露量 |
| 摘要点击 2324 全文点击 1432 投稿时间：2014-01-07 修订日期：2014-02-28 |
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| 中文关键词 电子垃圾 多溴联苯醚 鲫鱼 组织分布 摄食暴露量 |
| 英文关键词 electronic waste polybrominated diphenyl ethers(PBDEs) crucian carp distribution of tissues dietary intake |
| 作者 | 单位 | E-mail | | 王俊霞 | 华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海 200237 | wjx_7297@163.com | | 王春艳 | 德阳市环境监测中心站, 德阳 618000 | | | 刘莉莉 | 华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海 200237 | | | 周啸宇 | 华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海 200237 | | | 刘洋成 | 华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海 200237 | | | 林匡飞 | 华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海 200237 | kflin@ecust.edu.cn |
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| 中文摘要 |
| 利用气质联用仪（GC-NCI-MS）方法定量分析了台州路桥区河流野生鲫鱼肌肉、 菜市场养殖鲫鱼肌肉、 肝脏、 脑、 心脏和卵组织中多溴联苯醚（polybrominated diphenyl ethers， PBDEs）的含量及分布特征，并且评估了当地人通过食鱼的PBDEs暴露量. 结果表明，电子垃圾拆解点附近河流鲫鱼肌肉中PBDEs含量显著高于没有明显PBDEs污染源的菜场养殖鲫鱼；PBDEs在养殖鲫鱼组织中分布不均，心脏组织中∑PBDEs含量最高，均值为18.82 ng·g-1（湿重），卵组织中最低，均值为1.97 ng·g-1. 菜场养殖鲫鱼各组织中PBDEs同系物分布模式相似，BDE-47是最主要同系物，比例均值大于50%，其次是BDE-183（约20%），再次BDE-99和-153；河鱼肌肉组织中PBDEs同系物与养殖鲫鱼不尽相同，河鱼肌肉组织中主要同系物是BDE-47、 -153和-99. 这些结果可能暗示了来自上游的简单电子垃圾拆解行为是河流鲫鱼中较高PBDEs含量的一个污染来源. 台州居民通过食用河流鲫鱼途径的PBDEs日均暴露量约为29.0 ng，稍微高于其他地区. |
| 英文摘要 |
| The concentration and distribution of PBDEs in liver, heart, brain, egg and muscle tissues of market farmed fish and wild river fish (crucian carp) from Taizhou, which is a large e-waste recycling site in China, were quantitatively measured using gas chromatography -negative chemical ion tandem mass spectrometry (GC-NCI-MS). The dietary intake of PBDEs via the consumption of fish by the population of this region was also estimated. The results showed that the concentrations of PBDEs in the muscle of river fish samples near the e-waste recycling site were significantly higher than those in the market farmed fish without obviously polluted sources of PBDEs. The distribution of PBDEs in various tissues was not even, and the highest and lowest mean concentrations of total PBDEs (∑PBDEs) were 18.82 ng·g-1 and 1.97 ng·g-1 (wet weight), in heart and egg tissues, respectively. A similar PBDE congener profiles in different tissues of farmed fish were found. Among PBDE congeners, BDE-47 was predominant in various tissues accounting for above 50% of the total PBDEs, and followed by BDE-183 (about 20%), BDE-99 and BDE-153. While different profiles of PBDEs in muscle tissues between wild fish in river and market farmed fish were observed, that BDE-47, -153 and -99 were dominant for the former type. These facts suggested primitive e-waste recycling behavior to be a pollution source of high levels of PBDEs in wild fish. The average estimated daily intake of PBDEs via river fish consumption by local residents near the e-waste recycling site in Taizhou was approximately 29.0 ng, slightly higher than that in other regions. |
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