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EPA Sets Lower Ozone Standard

EPA Sets Lower Ozone Standard
The Environmental Protection Agency has lowered the National Ambient Air Quality Standard for ozone from 75 ppb to 70 ppb. Under the Clean Air Act, EPA is required to select a primary NAAQS for ground-level ozone that protects the nation’s public health within an “adequate margin of safety.” In March 2008, EPA lowered the primary NAAQS for ground-level ozone from 84 ppb to 75 ppb. Some health and green groups urged a limit as low as 60 ppb.
 
Farm Bureau supported retaining the 75 ppb standard. 


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