LOUISIANA DEPARTMENT OF ENVIRONMENTAL QUALITY
Secretary Chuck Carr Brown, PhD.

Ozone and PM2.5 Air Quality Index (AQI) Forecast

Current Air Data

Issued: 02:30 PM,THU AUG 16 2018
Baton RougeThursdayFridaySaturday
Ozone54-Moderate50-Good48-Good
PM2557-Moderate50-Moderate42-Good
AlexandriaThursdayFridaySaturday
Ozone43-Good44-Good43-Good
PM2553-Moderate46-Good42-Good
Lake CharlesThursdayFridaySaturday
Ozone42-Good40-Good38-Good
PM2555-Moderate50-Moderate46-Good
LafayetteThursdayFridaySaturday
Ozone40-Good38-Good36-Good
PM2542-Good42-Good33-Good
MonroeThursdayFridaySaturday
Ozone42-Good40-Good37-Good
PM2546-Good46-Good38-Good
New OrleansThursdayFridaySaturday
Ozone44-Good40-Good37-Good
PM2555-Moderate55-Moderate50-Moderate
ShreveportThursdayFridaySaturday
Ozone40-Good44-Good43-Good
PM2550-Moderate50-Moderate42-Good
ThibodauxThursdayFridaySaturday
Ozone40-Good37-Good35-Good
PM2550-Moderate42-Good33-Good

REMARKS:Thursday, lingering Saharan dust will continue to increase particle levels; however, light to moderate southerly winds will gradually transport a cleaner air mass into Louisiana. Furthermore, isolated thunderstorms, especially in southern Louisiana, will increase mixing in the atmosphere and reduce ozone formation. As a result, AQI levels will be Good to low-Moderate statewide. Friday and Saturday, light to moderate south-southeasterly winds will continue to transport a cleaner air mass into Louisiana. In addition, scattered showers and thunderstorms throughout the state will increase mixing in the atmosphere, and partly cloudy skies will continue to reduce ozone formation. Therefore, AQI levels will be Good in most cities on both days.