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EPA Data: Sharp Increase in Unhealthy Air in Big Cities

The number of unhealthy air days in nearly three dozen cities soared in the first two years of the Trump administration, according to an annual air pollution report released Wednesday by the Environmental Protection Agency.  The EPA report said dangerous air days in 35 of the largest U.S. cities rose from a combined 706 in 2016 to 799 in 2018 – the biggest annual increase since 2012. Levels of some pollutants, including carbon monoxide, have declined since 1970, but the ones that pose the most danger to sensitive groups – ozone, commonly known as smog, and two sizes of tiny particles that penetrate the lungs – have risen in the past two years.  Read more...

 

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