Compare locations
Compare air quality between multiple locations to make informed decisions about where to live, work, exercise, or spend time outdoors.
How to compare places
- Save two or more locations to My Places
- Open the My Places panel in the sidebar
- Click the Compare button
- Select the locations you want to compare
- View the side-by-side comparison
What you can compare
The comparison view shows:
| Metric | Description |
|---|---|
| Current AQI | Real-time Air Quality Index at each location |
| Pollutant levels | PM2.5, PM10, NO2, and O3 readings |
| Leaf rating | Long-term air quality score |
| 7-day average | Recent air quality trends |
| Best/worst times | When air quality is typically better or worse |
Use cases
Choosing where to live
Compare neighborhoods you're considering moving to. Look at long-term leaf ratings rather than just current conditions.
Planning your commute
Compare air quality along different routes or at different times to minimize exposure during travel.
Outdoor activities
Compare parks, sports facilities, or running routes to find the cleanest air for exercise.
School or childcare decisions
Compare air quality at different schools or daycare centers to help protect your children.
Tips for meaningful comparisons
- Compare places at the same time of day for consistency
- Check both current readings and historical averages
- Consider the leaf rating for long-term decisions
- Look at trends — is air quality improving or declining?
- Factor in your specific sensitivities (some pollutants may affect you more than others)