AQI Comparison
AQI 0 vs AQI 150
A one-step change in AQI category can translate into a meaningful jump in particle dose.
AQI 0
0
cigarettes per 24h
Good: Most people can keep their normal routine.
AQI 150
2.52
cigarettes per 24h
Unhealthy for Sensitive Groups: This is the point where many households should start changing plans.
What changes between these two AQI values
Difference in PM2.5
55.4
µg/m³
Difference per day
2.52
cigarettes
Direction
AQI 150 is materially heavier exposure
Moving from AQI 0 to AQI 150 changes both dose and the protection plan.
Calculate AQI 0
Open the interactive calculator with AQI 0 loaded.
Calculate AQI 150
Use the interactive calculator to test a different duration.
See how the numbers are derived
Review the AQI-to-PM2.5 and PM2.5-to-cigarettes methodology.