NO2 detector background ：

The NO2 detector can monitor nitrogen oxides such as nitrogen dioxide and nitric oxide. Environmental protection departments have been vigorously carrying out their monitoring, emission control, and governance. At present, the main sources of nitrogen dioxide pollutants in my country are the combustion of fossil fuels and vehicle exhaust.

Formation of nitrogen dioxide ：

Sulfur oxides and nitrogen oxides are major contributors to acid rain. However, under certain conditions, NO2 will form photochemical smog together with hydrocarbons. Destroying the atmospheric environment, which will seriously endanger human health and deteriorate the environment on which human survival depends.

Hazards of NO2 Gas ：

Motor vehicles are the most important source of nitrogen oxide emissions. The contribution to the concentration of nitrogen oxides in the atmosphere is as high as 74%. Even short-term exposure to nitrogen dioxide can damage lung function. Prolonged exposure to nitrogen dioxide may lead to organic lung disease and respiratory infections. The NO2 gas detector can effectively detect the concentration of NO2 gas in the air.

Nitrogen dioxide has not been effectively purified and treated by waste gas treatment technology, which will not only cause great harm to the health of operators and the environment around the plant. But also cause irreparable harm to the life and ecological environment of surrounding residents. Therefore, the prevention and control of NO2 pollution is a huge systematic project, which requires the joint efforts of individuals, countries and even all countries in the world. Therefore, it is necessary to control the waste gas technology transformation, recycling and other aspects, strictly implement the emission standards, and then ensure "first treatment and then emission". In addition, the exhaust emission time is controlled to reduce nitrogen dioxide emissions.

Finally, I recommend using the corresponding gas sensor for detection, such as the JXCT nitrogen dioxide NO2 sensor. The NO2 detector has the characteristics of analog output electrochemical principle, low price, high performance, low cost and small volume.  So, ideal for health, environmental, industrial and residential monitoring. NO2 detectors are our first choice for air quality monitoring.