Compare common AQI levels
Use these comparison pages when the real question is not just “what does this AQI mean?” but “how much worse is this than a cleaner day?”
AQI 50 vs AQI 100
See how the category, PM2.5 dose, and cigarette-equivalent exposure change between these two common readings.
AQI 50 vs AQI 150
See how the category, PM2.5 dose, and cigarette-equivalent exposure change between these two common readings.
AQI 100 vs AQI 150
See how the category, PM2.5 dose, and cigarette-equivalent exposure change between these two common readings.
AQI 100 vs AQI 200
See how the category, PM2.5 dose, and cigarette-equivalent exposure change between these two common readings.
AQI 150 vs AQI 200
See how the category, PM2.5 dose, and cigarette-equivalent exposure change between these two common readings.