Previously, with the continuous foggy weather in many parts of the country, “PM2.5” has become the hottest word in popular science. U mutivu principale per a "splusione" di u pM2.5 Valore sta volta hè a grande emissioni di u diossidu di u zulgnu, di u nitrogenu è a polvera causata da u carbone di carbone. As one of the current sources of PM2.5 pollution, the exhaust gas emissions of coal-fired boilers are very prominent. Among them, sulfur dioxide accounts for 44%, nitrogen oxides account for 30%, and industrial dust and smoke dust together account for 26%. The treatment of PM2.5 is mainly industrial desulfurization and denitrification. On the one hand, the gas itself will pollute the atmosphere, and on the other hand, the aerosol formed by nitrogen oxides is an important source of PM2.5.

Therefore, oxygen monitoring of coal-fired boilers is very important. Aduprendu l'analisi di l'ossigenu di l'ossigenu di l'ossigenu di l'emissioni