"Air pollution has become an unavoidable reality in the lives of urban residents around the world."

According to the source, air pollution sources can be divided into two categories: naturalresources and man-made sources.

Natural sources refer to particles produced by natural factors, such as volcanic eruptions, sandstorms, forest fires, cosmic dust, sea salt splashes and soil particles.

Anthropogenic sources refer to the particles generated in human production and living activities, such as the particles generated by the combustion of coal, oil and wood, the particles emitted by vehicles such as automobiles and aircraft, and the dust particles generated by industrial production.

The fuel combustion and production processes of coal combustion, iron and steel plants, nonferrous metal smelters, thermal power plants, cementplant , petrochemical plants, industrial and municipal waste incineration plants are common pollution sources.

The distribution of anthropogenic sources is more extensive and generally concentrated in a certain region, often in cities with concentrated population. For indoor air, inhalable particles mainly come from indoor pollution sources such as tobacco smoke and cooking. When there is no obvious indoor pollution source, outdoor air is the main source of indoor particles. Usually discharged directly by the pollution source, which is called primary pollutant. Main ingredients include co , so2, nox , pm2.5, pm10 , etc.

There must be secondary pollutants as well as primary pollutants. Secondary pollutants are defined relative to primary pollutants. Secondary particulate matter is formed by the chemical reaction or physical process of the emitted gas products such as sox , nox , vocs and other compounds in the atmosphere, such as sulfate, nitrate, chloride, ammonium salt and organic aerosol formed by chemical reaction of sulfur dioxide, nitrogen oxide, hydrogen chloride and chlorine, ammonia and organic gas.

The combination of primary and secondary pollutants in the atmosphere leads to the formation of ozone pollution and particulate pollution. They have a long service life and are transported from upwind to downwind through regional transmission. Local pollution eventually leads to regional pollution, even heavy pollution.

On the whole, the above kinds of pollution are superimposed on each other, and the homogeneous reaction and multiphase reaction are coupled. The phenomenon of interaction between local and regional air pollution is air compound pollution.

 

 

AQM-09 air quality monitoring system can monitor the dust in the urban environment, construction sites, tourist attractions, parks, quarries, open-pit mining, cement plants and road safety.

It is popular in various countries.
It is designed to ensure the safety of the ambient air around you.
It can be used as the air quality camera around you.
It can also customize the logo according to the different needs of users.

 

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