Air pollution measurement instruments
Air pollution measurement instruments are also known as air quality monitoring instruments. It is an instrument used to comprehensively detect air quality conditions. It can detect the concentration of various pollutants in real-time and issue alarm prompts. People can use the information given by the air pollution monitor to take relevant measures to reduce air pollution, thereby improving the environment. the goal of. The following mainly introduces the main sources of air pollution in the environment and common Air pollution measurement instruments.
Major Air Pollution Sources
Sources of air pollution are the sources of air pollutants, mainly the following:
(1) Industry: Industrial production is an important source of air pollution. Industrial production emits a wide variety of pollutants into the atmosphere, including soot, sulfur oxides, nitrogen oxides, organic compounds, halogenated compounds, carbon compounds, and so on. Some of them are soot and some are gases.
(2) living stoves and heating boilers: a large number of urban civilian living stoves and heating boilers need to consume a large amount of coal, coal in the combustion process to release a large amount of dust, sulfur dioxide, carbon monoxide, and other harmful substances pollute the atmosphere. Especially in the winter heating, often makes the polluted areas filled with smoke, choking people to cough, which is also a source of pollution that can not be ignored.
(3) Transportation: cars, trains, airplanes, and ships are the main means of contemporary transportation, they burn coal or oil produced by the exhaust is also an important pollutant. Especially in the city of the car, the amount of large and concentrated, the emission of pollutants can directly invade the human respiratory organs, the city’s air pollution is very serious, and become one of the major sources of air pollution in large cities. Exhaust emissions from automobiles are mainly carbon monoxide, sulfur dioxide, nitrogen oxides hydrocarbons, etc. The first three substances are very harmful.
(4) Smoke from forest fires.
Common Air pollution measurement instruments
1. Particulate matter monitors: These are used to measure the concentration of particulate matter (e.g. PM2.5, PM10) in the air. They are commonly used to measure by principles such as laser scattering or filter film weight method. 2.
2. Gas detectors: they are used to detect various harmful gases in the air, such as carbon dioxide, sulfur dioxide, carbon monoxide, nitrogen oxides, and so on. They use sensors, electrochemical analysis or infrared absorption, and other technologies for measurement.
3. VOCs Detectors: are specifically designed to measure the content of volatile organic compounds (VOCs). These instruments commonly measure using principles such as chromatography-mass spectrometry (GC-MS) or volatile organic compound analyzers (PID).
4. Air Quality Monitoring Station: These are comprehensive monitoring systems that can simultaneously detect and record multiple parameters in the air, such as particulate matter, gas concentration, temperature, humidity, etc. They contain multiple sensors and data acquisition equipment. They contain multiple sensors and data acquisition equipment for real-time monitoring and analysis of air quality.
These Air pollution measurement instruments play an important role in the field of environmental monitoring, indoor air quality assessment, industrial pollution control, and so on. They provide accurate air quality data to help decision-makers formulate appropriate environmental protection policies and pollution control measures.
