AirNow: Official US air quality index and forecasts. eBird: Where birds are being seen: maps from millions of birdwatchers.
| AirNow | eBird | |
|---|---|---|
| Category | Environment & Wildlife Maps | Environment & Wildlife Maps |
| Coverage | United States | Worldwide |
| Updates | Live / real time | Continuously (community edits) |
| Data source | EPA and state monitoring networks | Birdwatchers' checklists |
| Made by | US Environmental Protection Agency | Cornell Lab of Ornithology |
| Price | Free | Free |
| Account | No account needed | Free to view, account for extras |
| On phones | Works well on phones | Phone app available |
| Map view | Flat map | Flat map |
| Visits from ColorfulMaps | 0 | 0 |
| Open map | Open map |
What you can do with AirNow
- Current air quality across the US
- Forecasts
- Health guidance
What you can do with eBird
- Species range and sighting maps
- Birding hotspots
- Recent sightings near you
Summary based on public information. Check each map's website for current features and prices.