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The US Environmental Safety Agency (EPA) has issued stricter safety requirements for 4 completely different per- and polyfluoroalkyl substances (PFAS) in consuming water, saying that these chemical compounds are extra hazardous than beforehand thought. Now the agency is think abouting regulating these compounds as one class pretty than individually.

So far, the EPA has recognized about 8000 A quantity of Kinds of PFAS compounds. This household of extremely-fluorinated chemical compounds, which have been in use As a Outcome of the Nineteen Forties in numerous industries, share engaging properties Similar to a Outcome of the power to repel oil, grease and water, And will be utilized as lubricants.

The EPA’s new well being advisories, introduced on 15 June, will regulate publicity ranges for The two most properly-acknowledged and biggest-studied Of these compounds in consuming water from 70 parts per trillion (ppt), set in 2016, to 0.004ppt for perfluorooctanoic acid (PFOA) and 0.020ppt for perfluorooctane sulfonic acid (PFOS).

Whereas environmental teams Simply like the Pure Assets Protection Council applauded the EPA’s actions, the American Chemistry Council (ACC) – the commerce affiliation for US chemical corporations – said the agency’s course of for creating these new lifetime well being advisories was ‘basically flawed’.

The EPA based mostly its revised requirements for PFOA and PFOS on toxicity assessments That are presently being considered by the EPA’s science advisory board, Based on the ACC. ‘Rather than Await The outcomes of this peer consider, EPA has introduced new advisories That …….

Source: https://www.chemistryworld.com/news/us-environment-agency-announces-new-safety-limits-for-fluorinated-chemicals/4015829.article

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