Air pollute stats for Merrimack Co in 2005
| County | Merrimack Co |
| State | New Hampshire |
| Data from year | 2005 |
| Total number of days monitored | 365 |
| Good air | 329 (90.14%) |
| Moderate air | 36 (9.86%) |
| Unhealthy for sensitive groups | 0 (0.00%) |
| Unhealthy for all | 0 (0.00%) |
|
| Worst pollutants |
|
| Carbon monoxide | 0 (0.00%) |
| Nitrogen dioxide | 0 (0.00%) |
| Ozone | 133 (36.44%) |