California has worst US air pollution: report
Submitted by lalit on Thu, 2018-04-19 13:21
California has the most polluted cities in the United States, a report issued on Wednesday said, as President Donald Trump's administration seeks to force the state to weaken its vehicle emissions
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External URL:
https://phys.org/news/2018-04-california-worst-air-pollution.html
Publication Date:
19/04/2018