China has issued the first smog warning of the winter for Nov.23 for 24 to 26 November . The yellow alert, issued by the Beijing Municipal Bureau of Ecology and Environment , means that heavy industry and construction sites will have to stop operating for the period. Additionally, At least 28 cities in China , Shanxi , Shandong and Henan province have issued orange-level smog warnings for the same period. The yellow level alert, the third-highest in China’s pollution warning system, was issued by the Beijing Municipal Bureau of Ecology and Environment for the period from Nov. 24 to Nov. 26. Heavy smog is a problem for China 's northern region from 24 to 26 November to mid-November because of additional coal burning for power and heating by homes and utilities.
China has issued the first smog warning of the winter for Nov.23 for 24 to 26 November . The yellow alert, issued by the Beijing Municipal Bureau of Ecology and Environment , means that heavy industry and construction sites will have to stop operating for the period. Additionally, At least 28 cities in China , Shanxi , Shandong and Henan province have issued orange-level smog warnings for the same period. Heavy smog is a problem for China 's northern region from 24 to 26 November to mid-November because of additional coal burning for power and heating by homes and utilities.