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Inside EPA - 10/04/2019

Ozone ISA Finds Weaker Health Impacts But Warns Of Environmental Harm

September 27, 2019
EPA staff’s integrated science assessment (ISA) of the latest data on ozone air pollution finds weaker evidence of a link between ozone exposure and public health harm but sees stronger evidence of the pollutant’s environmental damage, mixed findings that could complicate the agency’s ongoing review of its ozone ambient air standard. The draft ISA , published in the Sept. 26 Federal Register , is an early step in the review of the 2015 ozone national ambient air quality standard (NAAQS)...


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