威斯康星州批准首套PFAS地下水标准：六种化合物设限、两种上限4ppt
威斯康星州州长 Tony Evers 10月30日批准该州首套可执行的 PFAS（全氟和多氟烷基物质）地下水标准，为 PFOA、PFOS、PFHxS、PFNA、PFBS 与 HFPO-DA（GenX）六种化合物设定限值，其中 PFOA 与 PFOS 的上限为万亿分之四（4 ppt）。地下水是该州约95%社区的饮用水源，全州约七成居民依赖地下水。
这套标准由州自然资源厅（DNR）依据州卫生服务厅的健康建议制定。DNR 曾于2025年2月撤回先前版本并重启规则制定程序，此次获批的是重启后的版本。PFAS 被广泛用于不粘涂层、防水材料与消防泡沫等产品，可在环境与人体中长期存留，地下水标准将用于污染场地修复与饮用水源保护的执法判定。
州政府同时以2023至2025两年期预算设立的1.25亿美元 PFAS 信托基金支持各地的检测与治理；今年6月，州议会联合财政委员会还批准释放一笔约1000万美元的和解金，来自 Tyco Fire Products 位于 Marinette 的消防技术中心污染案。州政府表示，新标准与资金将配合推进受污染社区的治理进度。
Wisconsin Approves First PFAS Groundwater Standards: Limits Set for Six Compounds, 4 Parts Per Trillion for Two
Wisconsin Governor Tony Evers on October 30 approved the state's first enforceable groundwater standards for PFAS, setting limits for six compounds — PFOA, PFOS, PFHxS, PFNA, PFBS and HFPO-DA (GenX) — with PFOA and PFOS capped at 4 parts per trillion. Groundwater supplies drinking water to about 95% of Wisconsin communities, and roughly 70% of residents rely on it.
The standards were developed by the Department of Natural Resources (DNR) based on health recommendations from the Department of Health Services. The DNR withdrew an earlier proposal in February 2025 and restarted the rulemaking process; the approved rule is the product of that restart. PFAS chemicals, used in nonstick coatings, waterproofing and firefighting foams, persist in the environment and the human body, and the groundwater standards will govern cleanup decisions at contaminated sites and protection of drinking water sources.
The standards are backed by a $125 million PFAS Trust Fund created in the 2023–25 state budget. In June 2026, the legislature's Joint Committee on Finance also released a settlement of about $10 million from the Tyco Fire Products contamination case at its Marinette Fire Technology Center. State officials said the standards and funding together will advance cleanups in affected communities.
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图片来源：威斯康星州议会大厦，Madison（资料图）。CC BY-SA 4.0，Michael Barera摄，经 Wikimedia Commons。 / The wisconsin state capitol in madison (file photo). CC BY-SA 4.0, by Michael Barera, via Wikimedia Commons.
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