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Air Quality Forecast

Tuesday November 23, 2021
Ozone AQI Rating Fine Particles AQI Rating
Alton Jones & Vicinity 29 Good Alton Jones & Vicinity 12 Good
Providence & Vicinity 28 Good Providence & Vicinity 20 Good
Southern & Coastal 29 Good Southern & Coastal 14 Good
Wednesday November 24, 2021
Ozone AQI Rating Fine Particles AQI Rating
Alton Jones & Vicinity 30 Good Alton Jones & Vicinity 18 Good
Providence & Vicinity 29 Good Providence & Vicinity 28 Good
Southern & Coastal 30 Good Southern & Coastal 18 Good
Thursday November 25, 2021
Ozone AQI Rating Fine Particles AQI Rating
Alton Jones & Vicinity 36 Good Alton Jones & Vicinity 28 Good
Providence & Vicinity 35 Good Providence & Vicinity 48 Good
Southern & Coastal 38 Good Southern & Coastal 30 Good
Forecast Discussion

Monday November 22, 2021 2:30 PM

The coldest airmass of the fall moves in for Tuesday, with blustery NW winds gusting to 25mph and temperatures struggling to reach 40F. Very good mixing making for very GOOD air quality. For Wednesday, NW flow continues, but drops off. Even with sunshine, highs top out only near 40F, with GOOD air quality continuing. Temperatures jump up a bit on Thursday into the low 50s, as high pressure builds aloft. Surface winds light NW. With high pressure overhead and limited mixing, fine particles may build to MODERATE, especially around Providence.


Air Quality Guide for Particle Pollution

Air Quality Index Levels of Health Concern Numerical Value Meaning
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 Alert: Everyone may experience more serious health effects.
Very Unhealthy 200-301 Health warnings of emergency conditions. The entire population is more likely to be affected.


Phone Numbers

DEM's daily air quality readings: 1-401-222-2808
ALA's air pollution or lung health information: 1-800-LUNG-USA
State clean air programs: 1-401-222-2808

This information was provided by the:
Department of Environmental Management
Office of Air Resources
235 Promenade Street, Room 230, Providence, RI 02908

DEM provides a daily Ozone and Fine Particle forecast all year round.


For further information, contact Darren Austin at 401-222-2808 x7430.

Rev. 7/21/16