Exploring the air pollution monitoring station, high-precision instruments do a 'physical examination' for the air

Lidar“scanning”The spatiotemporal distribution of pollution, the particle size spectrometer to measure the particle size and concentration of fine air particles, and the atmospheric stability monitor to monitor whether the atmosphere is stable……Various indices of atmospheric conditions are presented through these sophisticated instruments and become an important component of atmospheric monitoring. On November 9th, in order to further improve the transparency of environmental protection work and enhance public awareness of environmental protection, Chengdu Environmental Protection Bureau launched an environmental protection open day activity in the fourth quarter of this year. High-precision instruments are made for air“physical examination”​​“Chengdu currently has 42 ambient air quality monitoring sites, including 8 Chinese control sites, 18 provincial control sites (including 3 rural sites), 15 municipal control sites, and 1 national greenhouse gas monitoring station. There are 54 dustfall monitoring points and 15 sulfation rate points. There are 8 monitoring points in the central urban area, including Liangjia Lane, Shilidian, Shahepu, Sanwayao, Junping Street, Dashi West Road, Lingyan Temple, and Jinquan Rivers.”Jia Fengju, a staff member of the super station, introduced everyone and walked into the precise“brain”'s laboratory. Rare instruments such as lidar, particle size spectrometer, atmospheric stability monitor, and turbidity meter appeared one by one.“Through the data analysis map of lidar, we can know at a glance the temporal and spatial distribution of air pollution, where and what time period is the pollution situation around the monitoring point, so as to judge the air quality of the area.”Jia Fengju said that before, they needed to report the air quality to the monitoring center every day in the morning and at noon. In recent times, this frequency has increased to three times a day. These data are an important basis for judging whether we take emergency response to heavily polluted weather and which level of emergency response to take. In the next step, the super station will also introduce newer and more accurate instruments. At the same time, 4-6 boundary stations will be established in the three-circle area, and instruments such as lidar will be introduced to strengthen air quality monitoring in suburbs (cities) and counties. Citizens praised the air monitoring work Air quality monitoring is an important part of the air pollution prevention and control work. The Open Day event also went to the Municipal Environmental Monitoring Center, allowing everyone to experience the monitoring work online at the emergency command center.​​“ambient air condition”“Vehicle exhaust gas detection status”“last 24 hours air quality index”……All the data you need to know is instantly available with just a click. Under the demonstration of the staff of the Municipal Environmental Information Protection Center, on the large screen of the emergency command center, various data such as atmospheric conditions and water environment conditions are displayed in sub-sections, and the overall situation of Chengdu's environmental quality can be seen at a glance. Representatives of the citizens at the scene expressed that with such a comprehensive monitoring work, they believe that the environmental quality of Chengdu will continue to improve.“I have also participated in the previous open house activities. Today, I came to visit the super station and emergency command center, which really made my eyes shine. I just realized that our facilities and equipment are very advanced and advanced.”Citizen representative Liu Bingheng said that in his view, air monitoring is very important, it can help to study and judge the form of air pollution, and lay the foundation for the next step to take preventive measures.