Air pollution in Beijing was so bad this weekend you could barely see across … – Treehugger


Treehugger
Air pollution in Beijing was so bad this weekend you could barely see across
Treehugger
According to the Real Time Air Quality Index, a score of 150-200 is unhealthy, and "Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects." A score of 201-300 is very unhealthy, "Health 

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View full post on air pollution – Google News

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