澳大利亚新南威尔士大学O'Carroll, Denis M.小组取得一项新突破。他们报道了全球地表水和地下水中被低估的全氟烷基和多氟烷基物质负担。这一研究成果发表在2024年4月8日出版的国际学术期刊《自然—地球科学》上。
研究人员表明，相当一部分采样水超过了PFAS饮用水指导值，超出的程度取决于管辖范围和PFAS存在。此外，鉴于PFAS通常是量化的但被视为是监管问题的PFAS组合有限，目前的监测做法可能低估了环境中的PFAS。为了评估环境负担和制定缓解措施，需要更好地了解消费者和工业产品中所含的PFAs的范围。虽然PFAS是本研究的重点，但研究结果强调了社会需要更好地了解人为化学物质的使用、命运和影响。
据介绍，全氟和多氟烷基物质(PFAS)是一类广泛应用于消费品和工业产品的含氟化学品。它们对人类的毒性和生态系统的影响已受到公众、科学和监管部门的广泛关注。随着建议中纳入了更大范围的PFAS以及被认为是安全的PFAS浓度持续下降，监管PFAS的导向正在迅速发展。在这项研究中，研究小组整理了来自世界各地超过45,000个地表水和地下水样本的PFAS浓度数据，以评估PFAS污染的全球程度及其潜在的未来环境负担。
附：英文原文
Title: Underestimated burden of per- and polyfluoroalkyl substances in global surface waters and groundwaters
Author: Ackerman Grunfeld, Diana, Gilbert, Daniel, Hou, Jennifer, Jones, Adele M., Lee, Matthew J., Kibbey, Tohren C. G., OCarroll, Denis M.
Issue&Volume: 2024-04-08
Abstract: Per- and polyfluoroalkyl substances (PFAS) are a class of fluorinated chemicals used widely in consumer and industrial products. Their human toxicity and ecosystem impacts have received extensive public, scientific and regulatory attention. Regulatory PFAS guidance is rapidly evolving, with the inclusion of a wider range of PFAS included in advisories and a continued decrease in what is deemed safe PFAS concentrations. In this study we collated PFAS concentration data for over 45,000 surface and groundwater samples from around the world to assess the global extent of PFAS contamination and their potential future environmental burden. Here we show that a substantial fraction of sampled waters exceeds PFAS drinking water guidance values, with the extent of exceedance depending on the jurisdiction and PFAS source. Additionally, current monitoring practices probably underestimate PFAS in the environment given the limited suite of PFAS that are typically quantified but deemed of regulatory concern. An improved understanding of the range of PFAS embodied in consumer and industrial products is required to assess the environmental burden and develop mitigation measures. While PFAS is the focus of this study, it also highlights society’s need to better understand the use, fate and impacts of anthropogenic chemicals.
DOI: 10.1038/s41561-024-01402-8
Source: https://www.nature.com/articles/s41561-024-01402-8