The highest AQ index in Louisiana (as of 21:00 CDT) is currently the Baton Rouge Area area. Particle Pollution (PM2.5) is measuring at 54 (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 Shreveport 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.
Sunday, as surface high pressure builds over the state, calm to light southerly to southeasterly winds will reduce pollutant dispersion. Furthermore, increasing sunshine will support ozone production. Therefore, despite a humid air mass aiding mixing, AQI levels will be high-Good to low-Moderate in most cities. Labor Day, calm to light west-southwesterly winds will allow pollutants to accumulate. In addition, hot temperatures and periods of sunshine will aid ozone development across northern Louisiana, where AQI levels will be low-Moderate. For the remainder of the state, scattered thunderstorms will promote mixing, yielding Good to high-Good AQI levels. Tuesday, calm to light southerly winds will continue to inhibit dispersion. Furthermore, partly sunny and hot conditions will promote ozone formation in northern Louisiana, where AQI levels will remain low-Moderate. In central and southern Louisiana, another round of scattered thunderstorm activity will aid vertical mixing and limit ozone production, keeping AQI levels Good to high-Good.
| 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 13 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.