Beijing Warns Against Outdoor Activities on Heavily Polluted Air

Posted on 24 December 2013. Tags: Activities, against, Beijing, heavily, Outdoor, polluted, warns

Beijing Warns Against Outdoor Activities on Heavily Polluted Air Beijing warned the young, elderly and ill among its 20 million inhabitants to stay indoors as air pollution exceeded World Health Organization-recommended levels by more than 10 times today. The concentration of PM2.5, fine air particulates that pose …

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