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Green Car Congress
Nov 26, 2014, 11:01 am83 ptsCounties where measured ozone is above proposed range of standards, based on 2011-2013 monitoring data. Source: EPA. Click to enlarge. The US Environmental Protection Agency (EPA) is proposing tightening the ground-level 8-hour ozone (O3) National Ambient Air Quality Standards (NAAQS) to within a range of 65 to…
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Leaf through planet Earths environmental headlines in one convenient place. Read, share and discover the latest on ecology, science and green living from the web's most popular sites.