Air pollute stats for Suffolk Co in 2001
| County | Suffolk Co |
| State | Massachusetts |
| Data from year | 2001 |
| Total number of days monitored | 365 |
| Good air | 206 (56.44%) |
| Moderate air | 148 (40.55%) |
| Unhealthy for sensitive groups | 9 (2.47%) |
| Unhealthy for all | 2 (0.55%) |
|
| Worst pollutants |
|
| Carbon monoxide | 6 (1.64%) |
| Nitrogen dioxide | 0 (0.00%) |
| Ozone | 1 (0.27%) |