China sees improved air, water quality in 2022.

ISLAMABAD -- China's air and water quality registered steady improvement in 2022, data from the China's Ministry of Ecology and Environment showed.

The share of days with good air quality stood at 86.5 percent in Chinese cities at and above the prefecture-level, Jiang Huohua, an official with the ministry said.

The proportion of days with heavy air pollution was 0.9 percent last year, dropping to less than 1 percent for the first time, Jiang said.

The PM2.5 density, a key indicator of air pollution, dropped 3.3 percent year on year to 29 micrograms per cubic meter, falling below 30 micrograms per cubic meter for the first time since the data was first monitored, ecns.cn reported .

The proportion of surface...