Скачать или смотреть What is Air Quality Index and How is it Measured? | GSSSB AAE | GSSSB WORK ASSISTANT | AQI INDEX

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Air Quality Index AQI is explained in simple terms through the science behind how air quality monitors measure pollution using laser light, a small internal fan and a photodiode. This description breaks down how PM2.5 and PM10 are detected with light scattering, how dust, smoke and microscopic particles interrupt a laser beam and how these signals are converted into micrograms per cubic meter for accurate scientific measurement. Air quality monitor, PM2.5 sensor, particle counter, laser based pollution detector, indoor air quality and air pollution in India are highlighted as core keywords, supported by concepts of CPCB standards, AQI calculation formulas and pollutant concentration measurement using relatable everyday analogies.

It also explains how harmful gases like CO, NO2 and O3 are measured through electrochemical gas sensors, where a chemical layer undergoes oxidation or reduction reactions that create a tiny electrical current used to determine gas concentration. The description clarifies that AQI is never measured directly but computed through pollutant data using country specific rules such as CPCB India and EPA United States. With keywords like electrochemical gas sensor, AQI standards, CPCB AQI India, EPA AQI, indoor air monitoring and smart air purifier technology, this description adds strong SEO value for understanding how the AQI number seen in cities and homes is actually derived.

#airpollution #technology #airquality #aqi #airpurifiers


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