How bad is the air pollution in Beijing? Today, the Beijing Municipal Environmental Monitoring Center said the density of PM2.5 particulates surpassed 700 micrograms per cubic meter in parts of the city. The World Health Organization considers a safe daily level to be 25 micrograms per cubic meter.
USA Today article: http://www.usatoday.com/story/news/world/2013/01/13/air-pollution-beijing-china/1829935/




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