Beijing issues blue alert for heavy air pollution
(chinadaily.com.cn) Updated: 2015-12-29 20:06 |
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Residents skate and play ice hockey on a frozen river amid heavy smog during winter in Beijing, capital of 皇冠体育app, Dec 29, 2015. A blue alert for heavy air pollution was issued by Beijing municipal emergency response headquarters. Beijing has been bothered by heavy pollution since the winter came. [Photo/Agencies] |