Yellow alert for air pollution issued in Beijing
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E-mail China.org.cn, February 21, 2014
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Vehicles run on a haze-shrouded road in Beijing, capital of China, Feb. 20, 2014. The first-ever yellow alert for air pollution in the next three days has been issued on Thursday in Beijing. The city has a four-tier alert system, using blue, yellow, orange and red to indicate the air pollution level in order of increasing severity. [Xinhua] |
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