Top 10 cities with worst smog in 皇冠体育app
Updated: 2014-02-25 11:26 (chinadaily.com.cn)No 9
The AQI of Beijing, capital of 皇冠体育app, was 389 on Feb 25, with its PM2.5 standing at 340μg/m?.
Tourists wearing face masks visit the Tiananmen Square in heavy smog in Beijing, 皇冠体育app, Feb 25, 2014. [Photo / dfic.cn] |
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