Current Monitoring Data & AQI

  • Baton Rouge Capitol Site

    18 OZONE

    Good 19 PPB 9/21/2026 12:00 PM

    50 PM25

    Good 11.972 UG/M3 9/21/2026 1:00 PM

    0 SO2

    Good 0.1 PPB 9/21/2026 12:00 PM

  • Baton Rouge LSU Site

    19 OZONE

    Good 21 PPB 9/21/2026 12:00 PM

  • Bayou Plaquemine Site

    18 OZONE

    Good 19 PPB 9/21/2026 2:00 AM

  • Carlyss Site

    13 OZONE

    Good 14 PPB 9/21/2026 12:00 PM

  • Carville Site

    25 OZONE

    Good 27 PPB 9/21/2026 12:00 PM

  • Chalmette Vista Site

    36 PM25

    Good 8.702 UG/M3 9/21/2026 1:00 PM

    1 SO2

    Good 1.5 PPB 9/21/2026 12:00 PM

  • Dixie Site

    12 OZONE

    Good 13 PPB 9/21/2026 12:00 PM

  • Dutchtown Site

    22 OZONE

    Good 24 PPB 9/21/2026 2:00 AM

  • French Settlement Site

    14 OZONE

    Good 15 PPB 9/21/2026 12:00 PM

  • Garyville Site

    14 OZONE

    Good 15 PPB 9/21/2026 11:00 AM

  • I-610 Site New Orleans

    37 PM25

    Good 8.825 UG/M3 9/21/2026 1:00 PM

  • Kenner Site

    29 OZONE

    Good 31 PPB 9/21/2026 12:00 PM

    36 PM25

    Good 8.581 UG/M3 9/21/2026 1:00 PM

  • Lafayette USGS Site

    19 OZONE

    Good 21 PPB 9/21/2026 12:00 PM

    21 PM25

    Good 4.929 UG/M3 9/21/2026 1:00 PM

  • Madisonville/Northshore Site

    17 OZONE

    Good 18 PPB 9/21/2026 12:00 PM

  • Marrero Site

    Temporary Located Community Site

    38 PM25

    Good 9.099 UG/M3 9/21/2026 1:00 PM

    0 SO2

    Good 0.9 PPB 9/21/2026 12:00 PM

  • Meraux Site

    23 OZONE

    Good 25 PPB 9/21/2026 12:00 PM

    0 SO2

    Good 0.5 PPB 9/21/2026 12:00 PM

  • Monroe Airport Site

    31 OZONE

    Good 33 PPB 9/21/2026 2:00 AM

    62 PM25

    Moderate 17.565 UG/M3 9/21/2026 1:00 PM

  • New Roads Site

    16 OZONE

    Good 17 PPB 9/21/2026 12:00 PM

  • Norco Site

    0 SO2

    Good 0.6 PPB 9/21/2026 12:00 PM

  • Port Allen Site

    20 OZONE

    Good 22 PPB 9/21/2026 12:00 PM

    34 PM25

    Good 8.091 UG/M3 9/21/2026 1:00 PM

    0 SO2

    Good 0 PPB 9/21/2026 12:00 PM

  • Pride Site

    19 OZONE

    Good 21 PPB 9/21/2026 2:00 AM

  • Shreveport Downtown Airport Site

    17 OZONE

    Good 18 PPB 9/21/2026 12:00 PM

    89 PM25

    Moderate 29.995 UG/M3 9/21/2026 1:00 PM

    1 SO2

    Good 1.7 PPB 9/21/2026 12:00 PM

  • St. James Parish Courthouse Convent Site

    16 OZONE

    Good 17 PPB 9/21/2026 12:00 PM

  • St. James Parish Site

    37 PM25

    Good 8.953 UG/M3 9/21/2026 1:00 PM

    1 SO2

    Good 1.5 PPB 9/21/2026 12:00 PM

  • St. Martinville Site

    16 OZONE

    Good 17 PPB 9/21/2026 12:00 PM

  • Thibodaux Site

    18 OZONE

    Good 19 PPB 9/21/2026 12:00 PM

    38 PM25

    Good 9.23 UG/M3 9/21/2026 1:00 PM

  • Vinton Site

    10 OZONE

    Good 11 PPB 9/21/2026 12:00 PM

    17 PM25

    Good 4.033 UG/M3 9/21/2026 1:00 PM

  • Westlake Site

    23 PM25

    Good 5.439 UG/M3 9/21/2026 1:00 PM

    0 SO2

    Good 0.5 PPB 9/21/2026 12:00 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.