
40 cities issue alerts for pollution in N China
China DailyBEIJING - Forty cities in north China, including Beijing and Tianjin, have issued alerts for air pollution, according to Beijing air pollution emergency management headquarters. Beijing was hit with severe air pollution on Tuesday, with pollution levels expecting to reach grade six on a six-grade pollution gauging system in the southern part of the city later in the day, according to Beijing Municipal Environmental Monitoring Center. "Affected by increased humidity and temperature inversion, the density of PM2.5 may exceed 500 micrograms per cubic meter on Tuesday," according to Li Yunting, an environmental expert from BMEMC. Yellow alerts and blue alerts have been issued in 17 cities and 5 cities respectively, according to the air pollution emergency management headquarters of Beijing.
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