威斯康星州自然资源委员会10月28日批准地下水PFAS标准：PFOA与PFOS限值定为万亿分之4
威斯康星州戴恩县麦迪逊市消息：为自然资源厅制定政策的威斯康星州自然资源委员会10月28日一致批准地下水中 PFAS（「永久化学品」）的标准，使这项规则向成为州法律又迈近一步。
拟议标准为：最常见的两种 PFAS 化合物全氟辛酸（PFOA）和全氟辛烷磺酸（PFOS）限值为万亿分之4；全氟己烷磺酸（PFHxS）、全氟壬酸（PFNA）和六氟环氧丙烷二聚酸（HFPO-DA，即 GenX）三者限值各为万亿分之10。规则接下来将送交州长 Tony Evers 和州议会审查后才能生效，议会也可能推迟标准的实施。
约三分之一的威斯康星州居民依靠私人水井取用地下水，此前地下水中的 PFAS 一直没有监管标准；有了标准之后，水井污染超标的居民可向州政府申请援助，获得替代饮用水或在可能的情况下新打一口水井。自然资源厅估计实施成本约990万美元，主要影响公有污水处理厂和工业废水处理设施。自然资源厅地下水部门经理 Carla Romano 在会议上表示，公众评议大多支持这项规则，但也有人对合规问题以及特朗普政府放宽部分联邦化学品限值表示担忧。
来源：GSM·美国
Wisconsin Natural Resources Board Approves Groundwater PFAS Standards on Oct. 28: Limit of 4 Parts Per Trillion for PFOA and PFOS
MADISON, Dane County, Wisconsin — The Wisconsin Natural Resources Board, which sets policy for the Department of Natural Resources, voted unanimously on October 28 to approve standards for PFAS ("forever chemicals") in groundwater, moving the rule a step closer to becoming state law.
The proposed standards set a limit of 4 parts per trillion for the two most common PFAS compounds, PFOA and PFOS, and 10 parts per trillion each for PFHxS, PFNA and HFPO-DA (GenX). The rule next goes to Gov. Tony Evers and the Legislature for review before it can take effect, and lawmakers could also delay implementation.
About one-third of Wisconsin residents rely on private wells for groundwater, which previously had no PFAS standard; with standards in place, residents whose wells exceed them can apply for state assistance to obtain alternative drinking water or, where possible, drill a new well. The DNR estimates implementation will cost about $9.9 million, mainly affecting public wastewater plants and industrial dischargers. DNR groundwater section manager Carla Romano told the board that public comments were largely supportive, though some raised compliance concerns and worries about the Trump administration loosening some federal chemical limits.
Source: GSM News
来源：GSM·美国（原文链接）
图片来源：图：Wikimedia Commons 共享资源图片（Michael Barera 摄，授权：cc by-sa 4.0）。Image via Wikimedia Commons (by Michael Barera, license: cc by-sa 4.0).
