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首页> 外文期刊>Environmental Science & Technology >Distribution and Emission Estimation of Short- and Medium-Chain Chlorinated Paraffins in Chinese Products through Detection-Based Mass Balancing
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Distribution and Emission Estimation of Short- and Medium-Chain Chlorinated Paraffins in Chinese Products through Detection-Based Mass Balancing

机译：通过基于检测的质量平衡分布和排放中国产品中链中链中链链烷烃的分布和排放估算

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摘要

Short- and medium-chain chlorinated paraffins (SCCPs and MCCPs, respectively) have raised environmental concern due to their potential for persistence, long-range transport, bioaccumulation, and toxicity. However, little is known about the production, use, and environmental emissions of SCCPs and MCCPs in China, the world's largest producer and consumer. In this study, we estimated the amounts of SCCPs and MCCPs produced and used in China in 2018-2019 based on a nationwide survey and measurements of concentrations in products, from which we estimated the environmental emissions of SCCPs and MCCPs in China. Our results show that 225.2 and 236.4 metric kilotons (kt) of SCCPs and 428.5 and 450.2 kt of MCCPs were used in China in 2018 and 2019, respectively, with poly(vinyl chloride) (PVC) products dominating SCCP and MCCP usage. Moreover, a total of 3.9 and 4.2 kt SCCPs and 3.8 and 4.1 kt MCCPs were emitted into China's environment in 2018 and 2019, respectively. Although less MCCPs are released into the air relative to SCCPs, their level exceeds the emission of SCCPs into soil. Finally, detailed mass balance calculation indicates that, although emissions from the use of PVC products dominate SCCP and MCCP inputs into the air, emissions from the use of polyurethane foam adhesives are more closely related to input into surface waters for SCCPs and MCCPs. For input into soil, the main emission sources are the use of polyurethane foam adhesives (for SCCPs) and rubber products (for MCCPs). This study provides a preliminary overview of the distributions of SCCPs and MCCPs in products and insight into the mass balance of SCCPs and MCCPs from their production and use to emission in China. This assessment also provides an important foundation for better understanding the environmental risks and fates associated with SCCPs and MCCPs in China and around the world.
机译：短期和中期链氯化石蜡（短链氯化石蜡和中链氯化石蜡，分别地）都提出了对环境的关注，因为它们潜在的持久性，长距离运输，生物蓄积性和毒性。然而，鲜为人知的是，在生产，使用，并在中国，世界上最大的生产国和消费短链氯化石蜡和中链氯化石蜡的环境排放。在这项研究中，我们估计短链氯化石蜡和中链氯化石蜡的生产量和基于浓度的产品在全国范围内的调查和测量，从中我们估计短链氯化石蜡和中链氯化石蜡的环保排放在中国2018 - 2019年在中国使用。我们的研究结果显示，225.2和236.4，短链氯化石蜡和428.5和450.2克拉链氯化石蜡的公制千吨（KT）在中国分别用于2018年和2019年，与聚（氯乙烯）（PVC）产品主导SCCP和MCCP使用。此外，共有3.9和4.2克拉短链氯化石蜡和3.8和4.1克拉氯化石蜡分别在2018年和2019年，被排放到中国的环境。虽然不太氯化石蜡被释放到相对短链氯化石蜡的空气，他们的水平超过了短链氯化石蜡的排放到土壤中。最后，详细质量平衡计算表明，虽然因使用的PVC产品主导SCCP和MCCP输入到空气中的排放量，从使用聚氨酯泡沫体的粘合剂的排放更密切相关的输入到地表水的短链氯化石蜡和中链氯化石蜡。对于输入到土壤中，主要排放源是使用聚氨酯泡沫粘合剂（短链氯化石蜡）和橡胶制品（为中链氯化石蜡）的。这项研究提供了短链氯化石蜡和中链氯化石蜡的产品和洞察分布到从他们的生产和使用短链氯化石蜡和中链氯化石蜡的质量平衡，以排放在中国的初步审查。这项评估还提供了更好的理解与短链氯化石蜡和中链氯化石蜡在中国和世界各地的相关的环境风险和命运的重要基础。

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  • 来源
    《Environmental Science & Technology》 |2021年第11期|7335-7343|共9页
  • 作者

    Chengkang Chen; Anna Chen; Li Li; Wangyuan Peng; Roland Weber; Jianguo Liu;

  • 作者单位

    State Key Joint Laboratory for Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing 100871 China;

    State Key Joint Laboratory for Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing 100871 China;

    School of Community Health Sciences University of Nevada Reno Reno Nevada 89557 United States;

    State Key Joint Laboratory for Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing 100871 China;

    POPs Environmental Consulting Schwaebisch Gmuend 73527 Germany;

    State Key Joint Laboratory for Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing 100871 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    SCCPs; MCCPs; distribution; emission; mass balance;

    机译：SCCPS;MCCPS;分配;排放;质量平衡;

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