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The area with the highest AQ Index (as of 1:00 PST) in is in the Tahoe City area area. Ozone (OZONE) is measuring at 40 (Good). This means air quality is satisfactory, and air pollution poses little or no risk.
Over the next few days, the highest primary air pollutant will be Particle Pollution (PM2.5) in the Colfax area. It is forecasted to be 53 (Moderate), meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Below is a clickable map of Nevada County, California. The markers on the map identify large, populated cities. If you hover over a marker, it will display the city name and the current AQ index. The color of the city markers also references the current AQ risk level.
| 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 21 minutes ago
Below is a list of cities in Nevada County where we track and forecast the AQ index. Click on a city name to get the current AQ index as well as any available forcasts.
| Truckee | Grass Valley | Alta Sierra | Lake Wildwood | Lake Of The Pines |
| Nevada City | Penn Valley | Rough And Ready | North San Juan | Washington |
| Kingvale | Soda Springs | Floriston | Graniteville |