EPA proposes maintaining current NOx standards

Green Car Congress
By mmillikinJul 18, 2017, 6:00 am252 pts
Based on its review of scientific evidence, the US Environmental Protection Agency (EPA) proposes retaining the current national ambient air quality standards (NAAQS) for oxides of nitrogen (NOx). EPA proposes that the current NAAQS don’t need to be changed because they provide the appropriate public health…

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