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,WED APR 18 2018
Baton RougeWednesdayThursdayFriday
Ozone64-Moderate50-Good50-Good
PM2546-Good42-Good50-Moderate
AlexandriaWednesdayThursdayFriday
Ozone45-Good42-Good41-Good
PM2538-Good29-Good29-Good
Lake CharlesWednesdayThursdayFriday
Ozone61-Moderate50-Good48-Good
PM2553-Moderate42-Good38-Good
LafayetteWednesdayThursdayFriday
Ozone51-Moderate47-Good46-Good
PM2542-Good29-Good25-Good
MonroeWednesdayThursdayFriday
Ozone41-Good37-Good37-Good
PM2533-Good25-Good21-Good
New OrleansWednesdayThursdayFriday
Ozone58-Moderate50-Good47-Good
PM2546-Good42-Good42-Good
ShreveportWednesdayThursdayFriday
Ozone46-Good44-Good42-Good
PM2529-Good25-Good25-Good
ThibodauxWednesdayThursdayFriday
Ozone51-Moderate50-Good46-Good
PM2521-Good25-Good25-Good

REMARKS:Wednesday, as a weak cold front moves into Louisiana, moderate southwesterly winds will gradually shift to northwesterly, bringing cleaner air into the region. However, partly to mostly sunny skies will support ozone formation across the southern portion of the state. Therefore, AQI levels will be Good to low-Moderate. Thursday and Friday, light to moderate northerly to northeasterly winds behind the departing front will disperse pollutants and bring clean air into Louisiana, leading to Good AQI levels on both days.