[HIGHLIGHTS] Some cities in northern China are severely polluted by sand and dust

Some cities in northern China are severely polluted by sand and dust. The air quality index of many cities such as Qinhuangdao, Cangzhou, Daqing, and Suihua reached or exceeded 500, which was an explosion.

Moderate to severe pollution may occur in northern Shaanxi and western Inner Mongolia. Mainly, Inner Mongolia's Tongliao, Liaoning's Fuxin and Chaoyang may reach severe or above pollution, with the primary pollutant being particulate matter.