The highest AQ index in Massachusetts (as of 9:00 EDT) is currently the Fall River area. Particle Pollution (PM2.5) is measuring at 39 (Good). This means air quality is satisfactory, and air pollution poses little or no risk.
Over the next few days, the highest Ozone (OZONE) will be in the Boston area. It is forecasted to be Moderate, meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
| Range | 0 - 50 | 51 - 100 | 101 - 150 | 151 - 200 | 201 - 300 | 301 - 500 |
| Color | ||||||
| Category | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
Last Updated 11 minutes ago
Below is a list of counties in Massachusetts. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.
| Suffolk | Hampden | Worcester | Bristol | Middlesex |
| Plymouth | Norfolk | Essex | Berkshire | Hampshire |
| Barnstable | Franklin | Dukes | Nantucket |