Massachusetts Air Quality by City
Massachusetts has 8 cities with an air-quality page, from Boston (4,453,352 people) on down. Each page leads with the live AQI, the main pollutant driving it, and a go/no-go for outdoor exercise on the EPA scale.
Cities in Massachusetts
| City | Typical AQI (county median, 2025) | Population |
|---|---|---|
| Boston | 37 Good | 4,453,352 |
| Worcester | 39 Good | 496,386 |
| Springfield | 39 Good | 439,199 |
| New Bedford | 38 Good | 160,431 |
| Lowell | 38 Good | 118,368 |
| Shelburne Falls | 38 Good | 1,845 |
| West Chatham | 36 Good | 1,258 |
| Woods Hole | 36 Good | 988 |
Our dataset lists 125 places in Massachusetts; the 8 above have a page. For a smaller town, the nearest city above is the closest match.