Top 10 cities with worst smog in 皇冠体育app
Updated: 2014-02-25 11:26 (chinadaily.com.cn)No 2 Tangshan, Hebei province
The AQI of Tangshan city in eastern Hebei province was 492 on Feb 25, with its PM2.5 hitting 456μg/m?.
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 Tangshan city, Hebei province, Feb 25, 2014. [Photo / MoWeather] |
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