| 典型电子垃圾拆解区居民多卤代芳烃的膳食暴露及其癌症风险评估 |
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| 引用本文： | 赵高峰,王子健.典型电子垃圾拆解区居民多卤代芳烃的膳食暴露及其癌症风险评估[J].环境科学,2009,30(8):2414-2418. |
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| 作者姓名： | 赵高峰 王子健 |
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| 作者单位： | 中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085 |
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| 基金项目： | 国家自然科学青年基金项目(20707036);;国家自然科学重点基金项目(20737003);;中国博士后基金项目 |
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| 摘 要： | 收集浙江典型电子垃圾拆解区和对照区的饮用水、蔬菜、豆类、米饭、鸡蛋、鱼、鸡肉和猪肉等8类食物样品共191个;采用GC/MS 5975B分析样品中23种PBBs,12种PBDEs和27种PCBs;评估当地居民的PHAHs膳食暴露现状及其癌症风险.结果表明,拆解区居民这三大类PHAHs的平均日摄入量是对照区的2~3倍,通过米饭摄入PHAHs的量占当地居民PHAHs总摄入量的48%以上.拆解区居民因食物摄入PHAHs的癌症风险(3.81×10-4)是对照区(1.50×10-4)的2倍多,其中二英类PCBs的风险值占总癌症风险的45%以上.通过米饭摄入PHAHs是主要的暴露途径,二英类PCBs是引起癌症风险的主要贡献因子,电子垃圾拆解释放出的PHAHs通过食物摄入进入居民体内引起的癌症风险要明显高于对照区.
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| 关 键 词： | 电子垃圾 多卤代芳烃 膳食暴露 癌症风险 |
| 收稿时间： | 2008/9/17 0:00:00 |
| 修稿时间： | 2008/10/28 0:00:00 |
Dietary Intake of PHAHs and Cancer Risk Evaluation for Residents Living in the E-Waste Disassembly Sites |
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| ZHAO Gao-feng and WANG Zi-jian.Dietary Intake of PHAHs and Cancer Risk Evaluation for Residents Living in the E-Waste Disassembly Sites[J].Chinese Journal of Environmental Science,2009,30(8):2414-2418. |
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| Authors: | ZHAO Gao-feng and WANG Zi-jian |
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| Institution: | State Key Laboratory of Environmental Aquatic Chemistry;Research Center for Eco-Environmental Sciences;Chinese Academy of Sciences;Beijing 100085;China |
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| Abstract: | This study was conducted to estimate the lifetime average daily dose(LADDs) and the cumulative cancer risk of PBBs,PBDEs,and PCBs for local residents living in four e-waste disassembly sites and a control site in the Zhejiang Province of China.A total of 191 food samples(including seven food groups and drinking water) were obtained,and the concentrations of the three PHAHs were measured by GC/MS 5975B.The estimated LADDs of PHAHs in the disassembly sites were approximately 2-3 times higher than those in the... |
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| Keywords: | e-waste polyhalogenated aromatic hydrocarbons dietary intake cancer risk |
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