Air quality improved in 2016 for most cities
More Chinese cities saw better air quality last year because of measures to control air pollution, but the Beijing-TianjinHebei region remained the place hit hardest by smog.
Of all 338 cities, the air quality in 84 cities reach national standards, up from 73 in 2015, Wu Jiyou, an official with the Ministry of Environmental Protection, said at a press conference.
The proportion of days with good or relatively good air quality in a year rose to 78.8 percent, up 2.1 percentage points from a year ago. The PM 2.5 density dropped 6 percent to 47 micrograms per cubic meter, and the PM 10 density fell 5.7 percent to 82 micrograms.
Despite the improvements, the north still suffered from serious air pollution in winter, especially Beijing, Tianjin and Hebei, according to Wu. The Beijing-Tianjin-Hebei region's clear days stood at merely 56.8 percent, but 9.2 percent of days were “heavily polluted,” much higher than the country's average of 2.6 percent.