The highest AQ index in Louisiana (as of 12:00 CST) is currently the Lafayette area. Particle Pollution (PM2.5) is measuring at 60 (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 Particle Pollution (PM2.5) will be in the Baton Rouge Area 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.
Saturday, light to moderate northeasterly winds through most of the day will keep pollutants well dispersed in Louisiana. However, winds will weaken in the evening, allowing pollutants to accumulate. Furthermore, overnight temperatures in the 30s will produce a strong inversion, confining pollutants to the lower levels of the atmosphere. As a result, AQI levels will be high-Good. Sunday, calm to light easterly winds will lead to pollutant build-up across the Bayou State. Furthermore, an upper-level ridge of high pressure will limit mixing in the atmosphere. These conditions, combined with any smoke from regional agricultural fires, will lead to low-Moderate AQI levels in most cities. Monday, as surface high pressure gradually departs eastward, easterly to southeasterly winds will strengthen slightly, increasing pollutant dispersion. However, temperature inversions through the morning and evening hours will inhibit low-level mixing, leading to high-Good to low-Moderate AQI levels.
| 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 22 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.