Why should it be included in air quality testing?
-Have you ever thought about going to school to clean the classroom when you were a child? Did the broom sweep away the dust and cover your nose all over the sky? Otherwise you will cough and spit mud! So:
First, in recent years, sandstorms and smog weather have often appeared in Beijing, which has made the pressure to deal with public opinion more and more. Not monitoring the PM2.5 index can no longer solve the public anger, and it is suspected that the government is hiding its ears.
Second, the internationally accepted air quality index system (for example, embassies and consulates in China built its own air quality monitoring equipment, and immediately announced the air quality index of the city where the embassy or consulate is located) forced our government to attach importance to the monitoring of PM (i.e. inhalable particulate matter, such as dust and smoke) in order to be in line with international standards.
Third, the state has the ability to monitor PM2.5\pm2. 10 (financial resources, technical personnel, technical equipment, etc. ), so it is better to go with the flow, meet the demands of the public and earn a good reputation for listening to public opinion.