The reporter learned today from the Beijing Municipal Bureau of Ecology and Environment that in the first half of 2025, the average concentration of fine particulate matter in Beijing was 28.5 ug/m3, a year-on-year decrease of 17.4%; the number of good days was 142, an increase of 13 days over the previous year. The quality of the aquatic ecological environment improved year on year, the soil environment remained good, and the quality of the ecosystem was stable, moderate and improving.

The reporter learned today from the Beijing Municipal Bureau of Ecology and Environment that in the first half of 2025, the average concentration of fine particulate matter in Beijing was 28.5 ug/m3, a year-on-year decrease of 17.4%; the number of good days was 142, an increase of 13 days over the previous year. The quality of the aquatic ecological environment improved year on year, the soil environment remained good, and the quality of the ecosystem was stable, moderate and improving.