Four Hebei cities hit by air pollution

Unfavorable weather conditions cited for third bad spell of haze this winter

Four cities in Hebei province suffered air pollution on Friday due to recent unfavorable weather conditions, the third time the province has encountered smog since winter started this month.

The cities of Shijiazhuang, Tangshan, Xingtai and Dingzhou were experiencing slight air pollution at noon on Friday with the hourly average concentration of PM2.5 surpassing 100 micrograms per cubic meter, according to the real-time statistics of Hebei Provincial Bureau of Ecology and Environment.