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The Need to Adopt an International PMT Strategy to Protect Drinking Water Resources.
Environmental Science & Technology ( IF 11.4 ) Pub Date : 2020-09-15 , DOI: 10.1021/acs.est.0c04281 Biao Jin 1, 2 , Chen Huang 1, 2 , Yang Yu 3 , Gan Zhang 1 , Hans Peter H Arp 4, 5
Environmental Science & Technology ( IF 11.4 ) Pub Date : 2020-09-15 , DOI: 10.1021/acs.est.0c04281 Biao Jin 1, 2 , Chen Huang 1, 2 , Yang Yu 3 , Gan Zhang 1 , Hans Peter H Arp 4, 5
Affiliation
Assess the aqueous mobility of persistent organic chemicals and their environmental transformation products based on the chemical inventories of Asia, Europe, North America, and internationally. This approach could be similar to that used in Europe for REACH registered substances, by basing mobility assessments on the experimental organic-carbon partition coefficient (Koc) or the octanol–water distribution coefficient (Dow).(4) Place more focus on the environmental transformation pathways and products of high volume chemicals or highly persistent synthetic chemicals, as it is often the case that transformation products are more mobile and persistent than their precursors.(13) Screen for PMT substances and transformation products identified in chemical inventories and through expected transformation pathways as part of large-scale water quality monitoring studies using state-of-the-art analytics and nontarget approaches. This step will be fundamental to identify and prioritize high-concentration PMT substances which require urgent remediation action on regional, national, and international scales. Identify industrial source areas of PMT substances and their transformation products, and if necessary regulate their use and release during manufacturing and their life-cycle. Add high-risk and high-volume PMT substances to the Chinese national prioritized list of harmful water pollutants,(12) as well as similar lists in other nations,(4) to help ensure active monitoring and management of these substances to protect drinking water resources. Actively develop an international response and regulatory framework. Such action could occur through the United Nation’s Globally Harmonized System of Classification and Labeling of Chemicals (GHS), to explicitly require the assessment and identification of PMT substances and their environmental transformation products by the chemical manufacturers, with mandatory labeling of PMT substances or their metabolites (Figure 1). This would encourage international scientific and chemical-industry research toward more effectively identifying and managing the release of PMT substances to the environment. Figure 1. Suggested warning label as part of an international strategy for PMT substances (design H.P.H.A). The authors declare no competing financial interest. We thank the Editors of ES&T, Julie Beth Zimmerman and Margaret Mills, for excellent suggestions, feedback, and input on this Viewpoint. B.J. acknowledges support from Guangdong Foundation for Science and Technology Research (2017B030314057; 2019A1515011035), and a grant from State Key Laboratory of Organic Geochemistry, Chinese Academy of Sciences (SKLOG2020-4). H.P.H.A. acknowledges Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety of Germany (FKZ3719654080). This article references 13 other publications.
更新日期：2020-10-06
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