North China has one of the most polluted air in the world

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In the past two months, the Beijing-Tianjin-Hebei region had sustained the most serious air pollution this century. According to the monitoring data of the Institute of Atmospheric Physics, Chinese Academy of Sciences, in January of this year, five times of stronger haze pollution had occurred in this area. Experts from College of Environmental Science and Engineering said that North China has one of the most polluted air in the world.

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