Air Monitoring Data & AQI

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

Issued: Saturday, July 13, 2024, 2:30 PM

Saturday and Sunday, light southwesterly winds will hinder dispersion and continue to carry thin density Saharan dust across Louisiana. The dust is expected to keep ozone development in check despite partly sunny skies and highs in the mid-90s. Therefore, AQI levels will be low- to mid-Moderate for PM2.5, and Good for ozone on both days. Monday, the Saharan dust is expected to gradually decrease in most locations. However, light winds will continue to hinder dispersion, while partly sunny skies and warm temperatures aid ozone formation. Therefore, AQI levels are anticipated to be low-Moderate.

Baton Rouge

Saturday Sunday Monday
Ozone 41 - Good 39 - Good 58 - Moderate
PM25 66 - Moderate 75 - Moderate 62 - Moderate


Saturday Sunday Monday
Ozone 35 - Good 32 - Good 35 - Good
PM25 64 - Moderate 69 - Moderate 60 - Moderate

Lake Charles

Saturday Sunday Monday
Ozone 26 - Good 32 - Good 26 - Good
PM25 69 - Moderate 66 - Moderate 68 - Moderate


Saturday Sunday Monday
Ozone 32 - Good 31 - Good 32 - Good
PM25 64 - Moderate 68 - Moderate 64 - Moderate


Saturday Sunday Monday
Ozone 46 - Good 37 - Good 44 - Good
PM25 58 - Moderate 66 - Moderate 58 - Moderate

New Orleans

Saturday Sunday Monday
Ozone 44 - Good 41 - Good 51 - Moderate
PM25 71 - Moderate 77 - Moderate 62 - Moderate


Saturday Sunday Monday
Ozone 40 - Good 38 - Good 41 - Good
PM25 66 - Moderate 68 - Moderate 62 - Moderate


Saturday Sunday Monday
Ozone 23 - Good 23 - Good 28 - Good
PM25 77 - Moderate 75 - Moderate 64 - Moderate

More Information About Understanding AQI Information

The AQI is an index for reporting daily air quality. It tells you how clean or unhealthy your air is, and what associated health effects might be a concern. The AQI focuses on health effects you may experience within a few hours or days after breathing unhealthy air. The following chart provides information regarding the AQI determinations:

Category AQI Value What This Means
Good 0-50 Air quality is considered satisfactory, and air pollution poses little or no risk.
Moderate 51-100 Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
Unhealthy for Sensitive Groups 101-150 Members of sensitive groups may experience health effects. The general public is not likely to be affected.
Unhealthy 151-200 Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.
Very Unhealthy 201-300 Health warnings of emergency conditions. The entire population is more likely to be affected.
Hazardous 301-500 Health alert: everyone may experience more serious health effects.

Any questions about interpreting this monitoring data should be directed to the DEQ Customer Services Section at 1-866-896-5337.

TO REPORT ENVIRONMENTAL CONCERNS, INCLUDING ODORS, CONTACT THE DEQ SINGLE POINT OF CONTACT (SPOC) - 225-219-3640 or Toll Free 1-888-763-5424. In the event of an environmental emergency, citizens are encouraged to first contact their local authorities - police, sheriff, fire department, etc. Otherwise citizens and the regulated community can contact the SPOC line to report environmental concerns during business hours, 8 a.m. - 4:30 p.m., Monday through Friday at the number listed above. To report a concern outside of business hours call 225-342-1234 or the toll free number. Concerns include spills, releases, odors, fish kills, open burning, waste tires and any other types of environmental incidents. Citizens can report the incident online.

The data has not been quality reviewed or validated. Continuous PM2.5 readings shown are not NAAQS comparable.