E.P.A. Says ‘Forever Chemicals’ Must Be Removed From Tap Water. 含氟表面活性劑（也稱氟化表面活性劑或氟基表面活性劑，fluorinated surfactant 簡寫為FAS） measure will require utilities to reduce PFAS substances in drinking water to near-zero levels.

美國環保署 稱必須從自來水中去除“永遠的化學物質”

該規則適用於一系列被稱為 PFAS 的化學物質，這些化學物質與嚴重的健康影響有關。 自來水公司認為成本太高。

新措施將要求公用事業公司將飲用水中的 PFAS 物質減少到接近零的水平。

E.P.A. Says ‘Forever Chemicals’ Must Be Removed From Tap Water. 含氟表面活性劑（也稱氟化表面活性劑或氟基表面活性劑，fluorinated surfactant 簡寫為FAS）  measure will require utilities to reduce PFAS substances in drinking water to near-zero levels.



E.P.A. Says ‘Forever Chemicals’ Must Be Removed From Tap Water

The rule applies to a family of chemicals known as PFAS that are linked to serious health effects. Water utilities argue the cost is too great.
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The new measure will require utilities to reduce PFAS substances in drinking water to near-zero levels.Credit...Justin Sullivan/Getty Images

含氟表面活性劑（也稱氟化表面活性劑或氟基表面活性劑，fluorinated surfactant 簡寫為FAS），是多個氟原子取代氫所得到的一類表面活性劑。^[1]含氟表面活性劑在降低表面張力的能力上比傳統的碳氫表面活性劑更具有優勢。這類表面活性劑有氟化的「尾巴」和親水的「頭」。一些人造的含氟表面活性劑，如PFOS、PFOA等屬於持久性有機污染物，在人體和野外被檢測到存在。^[2]