Current Monitoring Data & AQI

  • Baton Rouge Capitol Site

    46 OZONE

    Good 50 PPB 10/23/2026 4:00 PM

    27 PM25

    Good 6.556 UG/M3 10/23/2026 5:00 PM

    0 SO2

    Good 0.4 PPB 10/23/2026 4:00 PM

  • Baton Rouge LSU Site

    47 OZONE

    Good 51 PPB 10/23/2026 4:00 PM

  • Bayou Plaquemine Site

    48 OZONE

    Good 52 PPB 10/23/2026 4:00 PM

  • Carlyss Site

    7 OZONE

    Good 8 PPB 10/23/2026 9:00 AM

  • Carville Site

    46 OZONE

    Good 50 PPB 10/23/2026 4:00 PM

  • Chalmette Vista Site

    17 PM25

    Good 4.177 UG/M3 10/23/2026 5:00 PM

    1 SO2

    Good 1.1 PPB 10/23/2026 4:00 PM

  • Dixie Site

    42 OZONE

    Good 45 PPB 10/23/2026 4:00 PM

  • Dutchtown Site

    44 OZONE

    Good 47 PPB 10/23/2026 4:00 PM

  • French Settlement Site

    44 OZONE

    Good 47 PPB 10/23/2026 4:00 PM

    22 PM25

    Good 5.35 UG/M3 10/23/2026 5:00 PM

  • Garyville Site

    45 OZONE

    Good 49 PPB 10/23/2026 4:00 PM

  • Kenner Site

    49 OZONE

    Good 53 PPB 10/23/2026 4:00 PM

    25 PM25

    Good 6.084 UG/M3 10/23/2026 5:00 PM

  • Lafayette USGS Site

    2 OZONE

    Good 2 PPB 10/23/2026 8:00 AM

    58 PM25

    Moderate 15.399 UG/M3 10/23/2026 5:00 PM

  • Madisonville/Northshore Site

    47 OZONE

    Good 51 PPB 10/23/2026 4:00 PM

  • Marrero Site

    Temporary Located Community Site

    29 PM25

    Good 6.856 UG/M3 10/23/2026 5:00 PM

    0 SO2

    Good 0.8 PPB 10/23/2026 4:00 PM

  • Meraux Site

    45 OZONE

    Good 49 PPB 10/23/2026 4:00 PM

    0 SO2

    Good 0.3 PPB 10/23/2026 4:00 PM

  • Monroe Airport Site

    47 OZONE

    Good 51 PPB 10/23/2026 4:00 PM

    30 PM25

    Good 7.271 UG/M3 10/23/2026 5:00 PM

  • New Roads Site

    20 OZONE

    Good 22 PPB 10/23/2026 6:00 AM

  • Norco Site

    1 SO2

    Good 1 PPB 10/23/2026 4:00 PM

  • Port Allen Site

    48 OZONE

    Good 52 PPB 10/23/2026 4:00 PM

    23 PM25

    Good 5.449 UG/M3 10/23/2026 5:00 PM

    1 SO2

    Good 1.3 PPB 10/23/2026 4:00 PM

  • Pride Site

    46 OZONE

    Good 50 PPB 10/23/2026 4:00 PM

  • Shreveport Downtown Airport Site

    41 OZONE

    Good 44 PPB 10/23/2026 4:00 PM

    23 PM25

    Good 5.589 UG/M3 10/23/2026 5:00 PM

    0 SO2

    Good 0.2 PPB 10/23/2026 4:00 PM

  • St. James Parish Courthouse Convent Site

    40 OZONE

    Good 43 PPB 10/23/2026 4:00 PM

  • St. James Parish Site

    30 PM25

    Good 7.155 UG/M3 10/23/2026 5:00 PM

    0 SO2

    Good 0.9 PPB 10/23/2026 4:00 PM

  • St. Martinville Site

    45 OZONE

    Good 49 PPB 10/23/2026 4:00 PM

  • Thibodaux Site

    49 OZONE

    Good 53 PPB 10/23/2026 4:00 PM

    50 PM25

    Good 12.064 UG/M3 10/23/2026 5:00 PM

  • Vinton Site

    46 OZONE

    Good 50 PPB 10/23/2026 4:00 PM

    37 PM25

    Good 8.835 UG/M3 10/23/2026 5:00 PM

  • Westlake Site

    37 PM25

    Good 8.829 UG/M3 10/23/2026 5:00 PM

    0 SO2

    Good 0.7 PPB 10/23/2026 4:00 PM

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.