Air pollution in northern Chinese city surpasses WHO guideline by 100 times
BEIJING Concentrations of airborne pollutants in a major northern Chinese city exceeded a World Health Organisation (WHO) guideline by 100 times on Monday as north China battled with poor air quality for the third straight day. In Shijiazhuang, capital of northern Hebei province, levels of PM 2.5, fine particulate matter, soared to 1,000 micrograms per cubic meter, state-run Xinhua News Agency reported on Monday. That compares with […]