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,TUE DEC 18 2018
Baton RougeTuesdayWednesdayThursday
Ozone28-Good26-Good23-Good
PM2576-Moderate57-Moderate33-Good
AlexandriaTuesdayWednesdayThursday
Ozone28-Good22-Good18-Good
PM2557-Moderate38-Good25-Good
Lake CharlesTuesdayWednesdayThursday
Ozone32-Good28-Good24-Good
PM2553-Moderate38-Good29-Good
LafayetteTuesdayWednesdayThursday
Ozone29-Good26-Good21-Good
PM2568-Moderate55-Moderate33-Good
MonroeTuesdayWednesdayThursday
Ozone24-Good22-Good19-Good
PM2550-Moderate25-Good21-Good
New OrleansTuesdayWednesdayThursday
Ozone32-Good28-Good24-Good
PM2576-Moderate57-Moderate38-Good
ShreveportTuesdayWednesdayThursday
Ozone17-Good16-Good15-Good
PM2542-Good38-Good13-Good
ThibodauxTuesdayWednesdayThursday
Ozone28-Good26-Good23-Good
PM2553-Moderate46-Good38-Good

REMARKS:Tuesday, calm to light and variable winds will limit pollutant dispersion, and an overnight temperature inversion will trap pollutants near the ground. As a result, AQI levels will be Moderate in most locations. Wednesday, calm winds will continue to limit mixing and dispersion through the morning hours. However, as a low pressure system moves through the region in the afternoon, light to moderate southeasterly winds will develop, dispersing pollutants and leading to Good AQI levels in most cities. Thursday, moderate and gusty northwesterly winds behind the departing low pressure system will keep the low levels of the atmosphere well mixed, yielding Good AQI levels statewide.