According to the report, in 20 17, the average annual concentration of PM2.5 in Beijing was 58 μ g/m3, down by 20.5% compared with the previous year, down by 32 μ g/m3 compared with 90 μ g/m3 in 20 13, with a decrease of 35.5%, achieving the goal of about 60 μ g/m3 set by the national "Ten Atmospheric Articles".
The person in charge of Beijing Environmental Protection Bureau said that in 20 17, the number of days with good air quality in Beijing was 226 days, 28 days more than that in 20 16, and the number of days with severe pollution was 23 days, less than that in 20 16. During 20 17, the monthly average concentration of PM2.5 in Beijing was the lowest level in the same period of the last five years.
Analysts said that the years of 20 13-20 17 were the five years in which the prevention and control of air pollution in Beijing was the strongest, the measures were the richest and the results were the most remarkable. However, we should also see that fundamentally improving the quality of the atmospheric environment is still a long-term, complex and arduous process.