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Air Quality Forecast

Saturday April 17, 2021
Ozone AQI Rating Fine Particles AQI Rating
Alton Jones & Vicinity 38 Good Alton Jones & Vicinity 12 Good
Providence & Vicinity 37 Good Providence & Vicinity 24 Good
Southern & Coastal 39 Good Southern & Coastal 14 Good
Sunday April 18, 2021
Ozone AQI Rating Fine Particles AQI Rating
Alton Jones & Vicinity 44 Good Alton Jones & Vicinity 24 Good
Providence & Vicinity 42 Good Providence & Vicinity 48 Good
Southern & Coastal 44 Good Southern & Coastal 28 Good
Monday April 19, 2021
Ozone AQI Rating Fine Particles AQI Rating
Alton Jones & Vicinity 48 Good Alton Jones & Vicinity 24 Good
Providence & Vicinity 47 Good Providence & Vicinity 46 Good
Southern & Coastal 48 Good Southern & Coastal 28 Good
Forecast Discussion

Friday April 16, 2021 4:00 PM

The April winter storms exits on Saturday, with northerly flow behind it, cool temperatures in the upper 40s, and mostly cloudy skies. Air quality very GOOD. Light NW flow on Sunday shifts to SW during the afternoon, with temperatures into the 50s. On Monday, lighter SW flow during the afternoon could allow fine particles to reach upper GOOD low MODERATE around Providence, with ozone upper GOOD. Temperatures jump in to the mid 60s.


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