Top 10 most polluted Chinese cities in May

By Lu Na
0 Comment(s)Print E-mail, June 28, 2013
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Beijing [Photo / Xinhua]

PM2.5 concentration/cubic meter:81 micrograms

PM10 concentration/cubic meter:129 micrograms

SO2 concentration/cubic meter:26 micrograms

NO2 concentration/cubic meter:51 micrograms

Ratio of days reaching the standard:25.8 percent

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