PM2.5 monitoring equipment in Changchun enters trial operation

Introduction: As PM2.5 or gradually replace the PM10 index. In Changchun City, Changchun, a PM2.5 monitoring instrument was installed at a monitoring site in late September. It is now in the trial operation stage.

Recently, the reporter learned from the Changchun Environmental Protection Bureau that Changchun City installed a PM2.5 monitoring instrument at a monitoring site in late September. It is now in the trial operation stage and has not yet formally passed acceptance.

There is a white small second floor on the east side of Labor Park. This is the only PM2.5 monitoring point in Changchun. Far away, you can see that various monitoring instruments are installed on the terrace on the second floor of the building. On the second floor of the building, you can see that there are three chimney-like devices on the roof. This is the air sampling head. The three sampling heads will monitor PM2.5, PM10, SO2, NO2 and greenhouse gases.

This reporter learned that PM2.5 or gradually replaced the PM10 index. According to reports, if the value of PM2.5 is used as a measure of air quality, it will help improve the scientific level of environmental air quality assessment.

PM2.5 refers to particles in the atmosphere that are less than or equal to 2.5 microns in diameter, and are also referred to as lung-infiltrated particles. PM2.5 has a small particle size, is rich in a large amount of poisonous and harmful substances, has a long residence time in the atmosphere, and has a long transportation distance, and therefore has a greater impact on human health and atmospheric environmental quality.