The highest AQ index in California (as of 9:00 PDT) is currently the Portola area. Particle Pollution (PM2.5) is measuring at 95 (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, a morning inversion will confine pollutants near the surface. Furthermore, periods of light southeasterly winds will limit dispersion and carry regional pollutants into southeastern California. In addition, isolated thunderstorms may produce areas of blowing dust. As a result, AQI levels will increase to low-Moderate. Tomorrow, as an upper-level ridge of high pressure builds over southern California, sunny skies and slightly warmer temperatures will enhance ozone production. Additionally, light southeasterly winds through much of the day will gradually transport pollutants into the Imperial Valley. These conditions will keep AQI levels 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 29 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.