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Apr 30, 2015, 6:00 am54 ptsInsideClimate News
High ozone levels and particulate matter plague 138 million Americans, despite recent improvements, American Lung Association-backed study shows. By Zahra Hirji More than 138 million people, or nearly 44 percent of the nation, live in areas plagued with dirty air for part of the year, according to a new report.…
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