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EPA Sets Timeline for Reviewing National Ozone Standards (1)

Aug. 28, 2019, 5:29 PMUpdated: Aug. 28, 2019, 6:23 PM

The EPA in late spring 2020 aims to issue a proposed decision on whether the national ozone standards are enough to protect public health and welfare, according to a recently released timeline.

The Environmental Protection Agency proposal will either tighten or leave alone the 70 parts per billion standard for ozone, a known lung irritant and a byproduct of fossil fuel combustion that contributes to smog in cities.

The final plan for the multiyear review was released on Aug. 27.

In the next few months, the EPA plans to release its draft science and policy assessments for ozone in...

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