Beijing has upgraded its alert for air pollution from orange to red, the most serious level, on Monday afternoon after the city enjoyed four days of clear and dust-free air. It is the first time the capital city has issued the red alert on smog, which will last from 07:00 Tuesday to 12:00 Thursday. According to the city's emergency management headquarters, during a red alert, kindergartens, primary and high schools are advised to suspend classes, outdoor operations of construction sites are banned and some industrial plants are required to limit or stop production. Car use will be limited as cars are allowed on the roads on alternating days depending on the odd or even numbers of their license plates. In addition, 30 percent of government cars will be banned from streets on an odd/even basis. source: CCTV+
