Earth Day: Cities with most air pollution revealed | CNN - discu.eu

Reddit

Top 10 cities with the worst ozone or particle pollution:1. Los Angeles http://www.cnn.com/2016/04/20/health/air-pollution-report-irpt/index.html 13 comments 21/4/2016 politics

Linked pages

Most Polluted Cities | State of the Air | American Lung Association http://www.lung.org/our-initiatives/healthy-air/sota/city-rankings/most-polluted-cities.html 0 comments

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