Photo taken on Oct. 18, 2016 shows the East Third Ring Road area shrouded in smog in Beijing, capital of China. A yellow alert for air pollution was issued on Tuesday in Beijing. (Xinhua/Ju Huanzong)
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Photo taken on Oct. 18, 2016 shows the East Third Ring Road area shrouded in smog in Beijing, capital of China. A yellow alert for air pollution was issued on Tuesday in Beijing. (Xinhua/Ju Huanzong)
