Previously, with the continuous foggy weather in many parts of the country, “PM2.5” has become the hottest word in popular science. The main reason for the “explosion” of the PM2.5 value this time is the large emissions of sulfur dioxide, nitrogen oxides and dust caused by coal burning. Sem ein af núverandi uppsprettum PM2,5 mengunar er losun útblásturslofts kolefnis katla mjög áberandi. Meðal þeirra er brennisteinsdíoxíð 44%, köfnunarefnisoxíð er 30%og iðnaðar ryk og reykur ryk saman fyrir 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. Með því að nota Nernst Zirconia súrefnisgreiningartæki getur í raun fylgst með losun brennisteinsdíoxíðs og köfnunarefnisoxíðs og gegna mikilvægu hlutverki við að stjórna mengun af völdum PM2.5.