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Air Quality Forecast

Thursday July 20, 2017
Ozone AQI Rating Fine Particles AQI Rating
Alton Jones & Vicinity 110 Unhealthy Alton Jones & Vicinity 52 Moderate
Providence & Vicinity 101 Unhealthy Providence & Vicinity 60 Moderate
Southern & Coastal 115 Unhealthly Southern & Coastal 52 Moderate
Friday July 21, 2017
Ozone AQI Rating Fine Particles AQI Rating
Alton Jones & Vicinity 49 Good Alton Jones & Vicinity 20 Good
Providence & Vicinity 46 Good Providence & Vicinity 32 Good
Southern & Coastal 70 Moderate Southern & Coastal 24 Good
Saturday July 22, 2017
Ozone AQI Rating Fine Particles AQI Rating
Alton Jones & Vicinity 48 Good Alton Jones & Vicinity 20 Good
Providence & Vicinity 46 Good Providence & Vicinity 36 Good
Southern & Coastal 49 Good Southern & Coastal 22 Good
 
Forecast Discussion

Thursday July 20, 2017, 2:30 PM

Synopsis: An air quality alert has been issued statewide for Thursday July 20th. Mostly sunny skies, favorable WSW flows, and the lack of any widespread afternoon showers should allow ozone to reach UNHEALTHY levels during the afternoon and late into this evening. It's recommended to avoid heavy exertion during those times. Fine particles are expected to reach MODERATE. A cold front approaches overnight, with an increased chance of showers and thunder. The front will linger offshore on Friday, with less humidity, and mostly sunny skies. In the vicinity of the front, ozone is expected to reach MODERATE along the immediate southern coast of the state. An area of low pressure on Sunday will bring the threat of showers and GOOD air quality.

 

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.


ADDITIONAL RESOURCES


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



Rev. 7/21/16