摘要
Beijing residents wear masks to combat the smog on December 8. Under the city＇s first-ever red alert, which was in effect from December 8 to 10, the authorities advised kindergartens, primary and high schools to suspend classes, shut down construction sites and required some industrial plants to limit or stop production, among other measures. The red alert is the highest in Beijing＇s four-tier emergency response system to be implemented when pol- lution levels hit a certain point
Beijing residents wear masks to combat the smog on December 8.Under the city’s first-ever red alert,which was in effect from December 8 to 10,the authorities advised kindergartens,primary and high schools to suspend classes,shut down construction sites and required some industrial plants to limit or stop production,among other measures.
