From January to October this year, the proportion of days with good air quality nationwide was 86.3%.

Amongthem,theaveragenumberofgooddaysinthe”2+26″ cities in Beijing-Tianjin-Hebei and surrounding areas was 66%, a year-on-year increase of 0.1 percentage points; the average concentration of PM2.5 decreased by 2.4% year-on-year.

(CCTV News)