China's environmental authorities say the move is aimed at strengthening inspections and enforcing laws to fight air pollution violations.

Buildings are seen among fog on a polluted day in Zhengzhou, Henan province, China, January 3, 2017.
Buildings are seen among fog on a polluted day in Zhengzhou, Henan province, China, January 3, 2017.

China's environmental authorities have placed 24 cities on pollution red alert. They say the move is aimed at strengthening inspections and enforcing laws to fight air pollution violations. Heavy smog is expected to remain until Thursday.

Dan Epstein tells us how this problem is impacting lives in the world's most populated country.

Source: TRTWorld and agencies