The highest AQ index in California (as of 14:00 PDT) is currently the Fresno area. Particle Pollution (PM10) is measuring at 86 (Moderate). This means air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Over the next few days, the highest Ozone (OZONE) will be in the Brawley area. It is forecasted to be Moderate, meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Today, light southerly winds will reduce dispersion and gradually transport thin smoke into the Imperial Valley. Furthermore, outflow winds from regional thunderstorm activity may generate areas of blowing dust in the evening. These conditions will yield low-Moderate AQI levels. Tomorrow, ample sunshine, temperatures around 100F, and a drier air mass will promote ozone development. In addition, periods of southwesterly winds will carry thin smoke into the region, increasing particle concentrations and enhancing ozone formation. Thus, AQI levels will remain low-Moderate.
| 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 8 minutes ago
Below is a list of counties in California. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.