China pollution

A woman wears a face mask on a grey day in Beijing. Authorities in Shanxi have set targets to reduce concentrations of harmful PM2.5 particles and sulphur dioxide levels by 40 per cent over the winter months. Photo: AP

China’s coal heartland aims to slash winter smog levels

Authorities in northern China’s Shanxi province, the country’s top coal producing region, will aim to cut concentrations of hazardous airborne particles known as PM2.5 by 40 per cent over the winter months, according to state media.