Beijing sees heavy air pollution Xinhua | Updated: 2021-02-13 15:43 Share Heavy smog is seen in Beijing on Feb 13, 2021. [Photo/IC]
BEIJING Beijing continued to see heavy air pollution on Saturday, which started Wednesday before the Chinese New Year.
Data registered at 10 am showed the city s air quality index had reached the level of heavy pollution, with the PM 2.5 concentration in the city s urban areas hitting 239 micrograms per cubic meter.
Local authorities issued a yellow alert for heavy air pollution on Thursday, the first day of China s Spring Festival holiday.
China has a four-tier color-coded warning system for air pollution, with red the most serious, followed by orange, yellow and blue.