Smog rolling in early; Hebei sets new target

PM2.5 concentration, number of heavily polluted days to be cut 15%

With smog hitting the northern regions before the weekend, Hebei province has vowed to take tough measures against air pollution, which is expected to be serious this winter.

The smog, which usually occurs in late autumn and winter, had already returned to the region by early September, and the governments of Beijing, Tianjin and Hebei have moved to control it.