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14
Air Quality Index (AQI) for the PM10 Concentration
(24hr)
Carbon Dioxide Levels and potential health problems are
indicated below:
250-350 ppm: background (normal) outdoor air
level
350-1,000 ppm: typical level found in occupied
spaces with good air exchange
AQI
Air Pollution Level PM2.5 Concentration
ug/m3
0 - 50
Good
0-54
51 -100
Moderate
55-154
101-150 Poor
155-254
151-200 Unhealthy
255-354
201-300 Severe
355-424
300+
Hazardous
425+