The highest AQ index in Louisiana (as of 9:00 CDT) is currently the Baton Rouge Area area. Particle Pollution (PM2.5) is measuring at 53 (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 Lake Charles 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.
Thursday, an upper-level trough of low pressure west of Louisiana will promote atmospheric mixing. In addition, partly cloudy skies and isolated to scattered thunderstorms will limit ozone development, while periods of moderate southwesterly winds will aid dispersion in the southeastern corner of the state. Therefore, AQI levels will be Good to high-Good. Friday, areas of morning fog will aid particle production. In addition, lighter winds statewide will hinder dispersion. However, as the upper-level trough passes over the state, mixing will continue to be aided, while isolated to scattered thunderstorms will limit ozone production. Thus, AQI levels will remain Good to high-Good. Saturday, as an upper-level ridge of high pressure moves into the state, mixing will decrease. Furthermore, warmer temperatures will aid ozone formation, while periods of light westerly to southwesterly surface winds will inhibit dispersion. However, low pollutant carryover from the previous days will yield Good to low-Moderate AQI levels statewide.
| 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 26 minutes ago
Below is a list of counties in Louisiana. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.