Toward a Comprehensive Global Emission Inventory of C4-C10 Perfluoroalkanesulfonic Acids (PFSAs) and Related Precursors: Focus on the Life Cycle of C6- and C10-Based Products
Toward a Comprehensive Global Emission Inventory of C4-C10 Perfluoroalkanesulfonic Acids (PFSAs) and Related Precursors: Focus on the Life Cycle of C6- and C10-Based Products
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DOI：
10.1021/acs.estlett.8b00531
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发表时间：
2019-01-01
影响因子：
10.9
通讯作者：
Wang, Zhanyun
中科院分区：
文献类型：
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作者：
Boucher, Justin M.;Cousins, Ian T.;Wang, Zhanyun
介绍了全氟己烷磺酰氟和全氟癸烷磺酰氟产品生命周期中释放的C-4-C-10全氟烷磺酸的第一份全球排放清单。这项研究补充了以前对全氟辛烷磺酰氟（POSF）及其衍生物的生命周期主要集中在全氟辛烷磺酰氟（PFSA）的排放量的研究。它审查并整合了有关PHxSF、PDSF及其衍生物生命周期的现有信息;公共领域现有的有限数据表明这些物质可能在全球范围内大量生产、使用和释放。在1958年至2015年期间，全氟己磺酸（PFHxS）和全氟癸磺酸（PFDS）的总排放量范围估计分别为120-1022公吨和38-378公吨。随着新的排放量估计作为输入的全球多媒体环境归宿模型（CliMoChem），模型推导的环境浓度很好地捕捉到报告的现场浓度，提供了强有力的支持，可扩展性的发达国家的排放清单。研究结果突出表明，这些物质的持续环境暴露，以及需要在公共领域获得有关其生产水平和用途的更详细数据。
A first global emission inventory of C-4-C-10 perfluoroalkanesulfonic acids (PFSAs) released during the life cycle of perfluorohexanesulfonyl fluoride (PHxSF)- and perfluorodecanesulfonyl fluoride (PDSF)-based products is presented. This study complements previous research on emissions of PFSAs that focused largely on the life cycle of perfluorooctanesulfonyl fluoride (POSF) and its derivatives. It reviews and integrates existing information about the life cycle of PHxSF, PDSF, and their derivatives; the limited data available in the public domain point to potentially significant global production, uses, and releases of these substances. Between 1958 and 2015, ranges of total emissions of perfluorohexanesulfonic acid (PFHxS) and perfluorodecanesulfonic acid (PFDS) are estimated to be 120-1022 and 38-378 metric tons, respectively. With the new emission estimates as inputs in a global multimedia environmental fate model (CliMoChem), the model-derived environmental concentrations well capture the reported field concentrations, providing strong support for the plausibility of the developed emission inventories. The results highlight the ongoing environmental exposure to these substances and the need for more detailed data in the public domain about their production levels and uses.