Vital Environmental Sources for Multitudinous Fluorinated Chemicals:New Evidence from Industrial Byproducts in Multienvironmental Matrices in a Fluorochemical Manufactory

Anen He; Yong Liang; Feifei Li

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Vital Environmental Sources for Multitudinous Fluorinated Chemicals:New Evidence from Industrial Byproducts in Multienvironmental Matrices in a Fluorochemical Manufactory

机译：Vital Environmental Sources for Multitudinous Fluorinated Chemicals:New Evidence from Industrial Byproducts in Multienvironmental Matrices in a Fluorochemical Manufactory

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Direct emissions from fluorochemical manufactory are an important source of per-and polyiluoroalkyl substances(PFASs)to the environment.In this study,a wide range of PFASs,including 8 legacy PFASs,8 long-chain perfluoroalkyl carboxylic acids(PFCAs),and 40 emerging PFASs,were investigated through a target screening in multienvironmental matrices from a fluorochemical manufactory in China.Indoor dust was the most polluted matrix,wherein 52 PFASs were detected,and the median concentration of long-chain PFCA was 276 ng/g.A high level of short-chain PFAS in total suspended particles(median concentration = 416 ng/m3)and the effluent in the manufactory(∑_(48)PFAS = 212 μg/L)will undoubtedly increase the burden on the surrounding environment.Twenty-four industrial byproducts were ascertained to be generated during the electrochemical fluorination(ECF)process,and eight fluorinated alternatives were considered to be produced during product development.Twelve PFASs were quantified for the first time in the working environments.Perfluoropropane sulfonic acid,perfluoro(2-ethoxyethane)sulfonic acid(PFEESA),and 2-perfluorohexyl ethanoic acid are abundant fluorinated alternatives,with median levels of 1187-17204 ng/g in the dust.Significant positive correlations between ECF-related PFAS products and byproducts indicate that the detected values are strongly connected with the industrial source.Hierarchical cluster analysis further manifests their affiliation.Our findings raise the need for further investigations of emerging PFAS(including the first report of PFAS,such as PFEESA,in the environment)which may be released during the production process in the fluorochemical manufactories.

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来源
《Environmental Science & Technology: ES&T》 |2022年第23期|16789-16800|共12页
作者
Anen He; Yong Liang; Feifei Li;
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作者单位

State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;

Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances,Institute of Environment and Health,Jianghan University,Wuhan 430056,China;

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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
正文语种英语
中图分类环境科学、安全科学;
关键词
per-and polyfluoroalkyl substances(PFASs); fluorochemical plant; electrochemical fluorination; industrial byproducts; environmental source;

Vital Environmental Sources for Multitudinous Fluorinated Chemicals:New Evidence from Industrial Byproducts in Multienvironmental Matrices in a Fluorochemical Manufactory

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