Air Quality in Puyang City, Henan Province

The air quality in Puyang, Henan Province is good, with an air quality index of 68. Outdoor activities can be normal, and sensitive people should reduce going out.

According to reports, on October 22nd, 65438+ 10/to 1 65438+/kloc-0, the average annual concentration of PM2.5 in Puyang was 49 μ g/m3, ranking first in the province 15. The average annual concentration of PM 10 is 72 μ g/m3, ranking sixth in the province. The number of excellent days was 2 19, and the proportion of excellent days was 67.2%, an increase of 6 days. All three assessment indicators have completed the target time series schedule requirements. At the same time, Puyang Demonstration Zone, Development Zone and Hualong District all rank in the top 15 in the ranking of provincial cities and districts, among which the demonstration zone ranks first and fifth.

In the ranking of counties (cities, districts), all five counties in Puyang City are in the top 15, among which Puyang County ranks first and fourth. This achievement has benefited from Puyang City's orderly promotion of enterprise performance grading in key industries this year, paying close attention to the in-depth management of industrial enterprises, solidly promoting the comprehensive management of VOCs, dynamically adjusting the emergency emission reduction list of heavily polluted weather, and scientifically, accurately and effectively implementing the management and control of heavily polluted weather. At the same time, we will promote the stable development of the whole economy and society.

Air quality standards:

1, standard setting

Particulate matter is suspended solid particles and droplets in the air, which has an important impact on human health and the environment. According to the requirements of the World Health Organization (WHO) and the national environmental protection standard of China (GB3095-20 12), particulate matter can be divided into two grades: PM 10 and PM2.5, where PM 10 refers to particulate matter with a diameter less than or equal to 10 micron, and PM2.5 refers to particulate matter with a diameter less than or equal to.

2. Relevant standards and specifications

According to the GB3095-20 12 standard and the secondary standard of atmospheric environmental quality, the concentration of PM 10 in urban air shall not exceed 150 μ g/m3? ), and the concentration of PM2.5 shall not exceed 75 μ g/m3? . These standards may be adjusted in some cases, such as industrial areas and severely polluted weather.