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Air Quality Forecast

Air quality forecasts are issued every day of the year for the Birmingham area and are based on the Air Quality Index (AQI).  The AQI is a color-coded scale that reports how clean or polluted the air is and the associated health effects.

The Jefferson County Department of Health forecasts fine particles (PM2.5) year-round and the Alabama Department of Environmental Management forecasts Ozone (O3) during the warm season.

An Air Quality Alert is issued when the AQI is forecast to reach 101 or higher.  The public is encouraged to decrease their personal emissions on days with higher pollution levels.

Forecast

Wed Apr 26, 2017
Ozone 49
PM 2.5 45
49
0
50
100
150
200
Thu Apr 27, 2017
Ozone 47
PM 2.5 42
47
0
50
100
150
200

Forecast Discussion



Wednesday: Upper level ridging will shift east of the area as a shortwave moves through the southern Plains. A weak surface low pressure system associated with the shortwave will move through the Midwest. The pressure gradient will tighten ahead of the disturbance and will increase sustained southerly winds to 10-20 mph. Skies will be mostly clear throughout the whole day. High temperatures will be above normal in the mid 80s. Good atmospheric mixing is expected to put PM2.5 and Ozone in the GREEN range. ML

Thursday: A cold front will move through the area early in the morning and stall out just south of the area. Rain will be possible from about midnight to dawn. Cloud cover will decrease throughout the day. High temperatures will get to around 80°. Winds will be westerly at 10-15 mph. PM2.5 and Ozone are both expected to be in the GREEN range. ML

Daily Air Quality Index Report




Date: April 25, 2017
Critical Pollutant: Ozone (03)
Air Quality Index: 54
Air Quality Description: Moderate

Pollutant : AQI Value
Carbon Monoxide (CO) : 7
Nitrogen Dioxide (NO2) : 22
Ozone (O3) : 54
Particulate Matter 2.5 (PM2.5) : 37
Particulate Matter 10 (PM10) : 14
Sulfur Dioxide (SO2) : 2

Air quality forecasts are also available via email by signing up for EnviroFlash, on Twitter, and by phone recording:

2016-05-13
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