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首页> 外文期刊>Environmental Science & Technology >Combined Effects of Dust and Dietary Exposure of Occupational Workers and Local Residents to Short- and Medium-Chain Chlorinated Paraffins in a Mega E-Waste Recycling Industrial Park in South China
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Combined Effects of Dust and Dietary Exposure of Occupational Workers and Local Residents to Short- and Medium-Chain Chlorinated Paraffins in a Mega E-Waste Recycling Industrial Park in South China

机译：在华南巨型电子垃圾回收工业园中，职业工人和当地居民的粉尘和膳食暴露对短链和中链氯化石蜡的综合影响

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摘要

Four types of dust samples and nine categories of locally produced staple foods were collected from a mega e-waste recycling industrial park and its surrounding regions, and simultaneously analyzed for short-chain and medium-chain chlorinated paraffins (CPs) to estimate dust and dietary exposure and their combined effects on occupational workers and local residents. All samples related to e-waste activities contained considerably high concentrations of CPs. The highest dust concentration was found in e-waste workshops. CPs were highly accumulated in local plant and animal origin foods, most markedly in fish, vegetables, and rice. The main contribution to CP intake under a median exposure scenario was from the diet, and vegetables, fish, and rice were the three largest dietary intake sources. Only the combined dust and food exposure from the present study has approached or even exceeded the highest tolerable daily intake (TDI) set up by the International Program on Chemical Safety (IPCS). However, due to lack of official threshold values for CP exposure on adverse human health, there are limitations on accurate risk assessment. Considering the presence of other exposure pathways, CPs' endocrine disrupter properties, as well as the multicomponent chemical "cocktails" effects, potential high risks from CP exposure may be posed to e-waste workers and local residents.
机译：从大型电子废物回收工业园区及其周边地区收集了四种类型的粉尘样品和九种本地生产的主食，并同时进行了短链和中链氯化石蜡（CP）分析，以估算粉尘和膳食暴露及其对职业工人和当地居民的综合影响。与电子废物活动有关的所有样品均含有相当高的CP。在电子废物车间发现了最高的粉尘浓度。 CPs在本地动植物食品中含量很高，最明显的是鱼类，蔬菜和大米。在中等摄入量情况下，对CP摄入量的主要贡献来自饮食，而蔬菜，鱼类和大米是三个最大的饮食摄入来源。仅本研究得出的粉尘和食物暴露总量已经达到甚至超过了国际化学安全计划（IPCS）设定的最高每日耐受摄入量（TDI）。但是，由于缺乏官方的关于CP暴露对人类健康不利的阈值，因此准确的风险评估存在局限性。考虑到其他暴露途径的存在，CPs的内分泌干扰物特性以及多组分化学“鸡尾酒”效应，CP暴露可能给电子废物工人和当地居民带来潜在的高风险。

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  • 来源
    《Environmental Science & Technology》 |2018年第20期|11510-11519|共10页
  • 作者

    Chen Hui; Lam James C. W.; Zhu Mingshan; Wang Fei; Zhou Wei; Du Bibai; Zeng Lixi; Zeng Eddy Y.;

  • 作者单位

    Jinan Univ, Sch Environm, Guangzhou 510632, Guangdong, Peoples R China;

    Educ Univ Hong Kong, Dept Sci & Environm Studies, Hong Kong, Hong Kong, Peoples R China;

    Jinan Univ, Sch Environm, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Sch Environm, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Sch Environm, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Sch Environm, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Sch Environm, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Sch Environm, Guangzhou 510632, Guangdong, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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