AirHistory
Air quality trends and grades for 1,000+ US cities
“Is the air in this city getting better or worse?”
AirHistory tracks a decade of air quality data across US cities, showing pollution trends, AQI breakdowns, and whether conditions are improving or worsening over time.
1,000 city pages targeting 'air quality [city]' long-tail. High search volume from parents, asthmatics, and relocators.
Sector
Health
Launched
2026-03
Data Source
EPA Air Quality System