The Environmental Protection Agency’s Clean Air Scientific Advisory Council (CASAC) has released its final report on the agency’s review of the National Ambient Air Quality Standards for ozone. CASAC commended the agency for certain sections of the policy assessment for the review but noted that the review may have substantially underestimated the public health risks of ozone exposure.
Regulatory background
Under the Clean Air Act (CAA), the Environmental Protection Agency (EPA) is required to set National Ambient Air Quality Standards (NAAQS) for six different “criteria air pollutants.”
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