EPA finds evidence for tightening key air quality standard

Read the full story at The Hill.

As the Environmental Protection Agency (EPA) reassesses a Trump administration decision not to strengthen a key air quality standard, it says it has found evidence to support tightening it. 

In a new draft policy assessment, the agency said that scientific evidence, air quality analyses and the risk assessment for a type of pollution called fine particulate matter can “reasonably be viewed as calling into question the adequacy of the public health protection afforded by the … standards.”

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