Traditional Culture Encyclopedia - Weather forecast - How did the air index in the weather forecast come out?
How did the air index in the weather forecast come out?
The air index in weather forecast is the air quality index, which is the graded concentration limit of various pollutants (AQI reference (GB3095-20 12) and API reference (GB3095- 1996). Air quality index (air quality index) is based on fine particulate matter (PM2.5), inhalable particulate matter (PM 10), sulfur dioxide (SO2), nitrogen dioxide (NO2), ozone (O3), carbon monoxide (CO) and other pollutants (in which PM2.5 and PM 10 are 24-hour averages.
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