Air pollute stats for Klickitat Co in 2003
| County | Klickitat Co |
| State | Washington |
| Data from year | 2003 |
| Total number of days monitored | 221 |
| Good air | 209 (94.57%) |
| Moderate air | 12 (5.43%) |
| 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 | 0 (0.00%) |