AQI Detail Page
AQI 105: Berkeley Earth comparison and what to do next
Berkeley Earth's rough population health-impact comparison: ≈ 1.69 cigarette-equivalents if PM2.5 at AQI 105 persisted for 24 hours. This is risk communication, not particle mass, inhaled dose, cigarettes smoked, personal risk, or diagnosis.
AQI category
Unhealthy for Sensitive Groups
PM2.5 estimate
37.1
µg/m³
Berkeley Earth comparison
1.69
Berkeley Earth cigarette-equivalents / 24h
30-day repeated comparison
50.7
Berkeley Earth cigarette-equivalents / 30 repeated days
What AQI 105 means
Longer outdoor exposure can meaningfully increase dose, especially for sensitive groups.
Children, older adults, pregnant people, and anyone with heart or lung conditions should reduce time outside and avoid hard exertion.
Berkeley Earth risk-communication comparison
1 hour: Berkeley Earth comparison ≈ 0.07 cigarette-equivalents.
2 hours: Berkeley Earth comparison ≈ 0.14 cigarette-equivalents.
24 hours: Berkeley Earth comparison ≈ 1.69 cigarette-equivalents.
7 repeated days: Berkeley Earth comparison ≈ 11.8 cigarette-equivalents.
Scenario guidance at AQI 105
These are the kinds of day-to-day decisions users commonly make from this reading.
Commute or errands
Use caution2 hours at AQI 105: Berkeley Earth comparison ≈ 0.14 cigarette-equivalents.
Limit extra walking time and keep a mask ready for transit platforms or traffic corridors.
Outdoor exercise
Move indoors1 hour at AQI 105: Berkeley Earth comparison ≈ 0.07 cigarette-equivalents.
Take the workout indoors. Heavy breathing raises inhaled dose quickly.
Kids, school, or playground time
Move indoors3 hours at AQI 105: Berkeley Earth comparison ≈ 0.21 cigarette-equivalents.
Shift recess, pickup waiting, and playtime indoors when possible.
Sleeping with windows open
Move indoors8 hours at AQI 105: Berkeley Earth comparison ≈ 0.56 cigarette-equivalents.
Keep windows shut and rely on filtered indoor air.
Explore nearby readings
Related AQI Berkeley Earth comparisons
Open a nearby or commonly searched AQI value to see how estimated PM2.5 concentration, Berkeley Earth's rough population health-impact comparison, and action guidance change.
Why the estimate is credible
The site first converts a PM2.5 pollutant AQI into an estimated concentration, then applies Berkeley Earth's rough population health-impact comparison.
The result is for risk communication—not particle mass, inhaled dose, cigarettes actually smoked, personal risk, or diagnosis.
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