Cities with the Cleanest Air in Maine.
Cities in Maine with the most good AQI days per year.
13 cities ranked · See the national list
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| # | City | Good AQI Days |
|---|---|---|
| 1 | Biddeford | 353 days/yr |
| 2 | Sanford | 353 days/yr |
| 3 | Saco | 353 days/yr |
| 4 | Lewiston | 311 days/yr |
| 5 | Auburn | 311 days/yr |
| 6 | Augusta | 311 days/yr |
| 7 | Waterville | 311 days/yr |
| 8 | Bangor | 299 days/yr |
| 9 | Orono | 299 days/yr |
| 10 | Portland | 271 days/yr |
| 11 | South Portland | 271 days/yr |
| 12 | Westbrook | 271 days/yr |
| 13 | Brunswick | 271 days/yr |
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