EPA proposes new smog standards

Government Security News: Based on extensive recent scientific evidence about the harmful effects of ground-level ozone, or smog, the Environmental Protection Agency (EPA) is proposing to strengthen air quality standards to within a range of 65 to 70 parts per billion (ppb) to better protect Americans’ health and the environment, while taking comment on a level as low as 60 ppb. The Clean Air Act requires EPA to review the standards every five years by following a set of open, transparent steps and considering the advice of a panel of independent experts. EPA last updated these standards in 2008, setting them at 75 ppb.

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