How Clean Is Our Air?

KeepHealthCare.ORG – How Clean Is Our Air?

This exposure has made air pollution the fourth highest cause of death globally, after high blood pressure, diet and smoking, and the greatest environmental health risk." USA Today: California has eight of 10 most polluted U.S. cities — "Eight of the USA's 10 most-polluted cities, in terms of ozone pollution …

Source: http://www.wbur.org/onpoint/2018/04/23/air-pollution-reports

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