Air pollute stats for Lancaster Co in 2004
| County | Lancaster Co |
| State | Nebraska |
| Data from year | 2004 |
| Total number of days monitored | 366 |
| Good air | 354 (96.72%) |
| Moderate air | 12 (3.28%) |
| Unhealthy for sensitive groups | 0 (0.00%) |
| Unhealthy for all | 0 (0.00%) |
|
| Worst pollutants |
|
| Carbon monoxide | 109 (29.78%) |
| Nitrogen dioxide | 0 (0.00%) |
| Ozone | 0 (0.00%) |