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Birmingham Area Air Quality Forecasts

DateAir Quality Index ForecastResponsible Pollutant
Thursday, April 24, 2014ModerateOzone And Particulate Matter 2.5
Friday, April 25, 2014GoodOzone And Particulate Matter 2.5


Forecast Discussion
Thursday: Upper level ridging and surface high pressure will control the area's weather for most of the day. This will mean clear skies and temperatures approaching 80. A shortwave will move across the Plains. A surface low ahead of the shortwave will drag a cold front across the Mississippi River late in the day. The approaching system will lead to an increase in clouds during the evening and a chance for rain late night. PM2.5 and Ozone are expected to be in the YELLOW range (moderate). ML

Friday: A surface low will push a cold front through the area during the morning. There will be a chance for rainfall ahead of the frontal passage. Rain amounts will be low since there isn't a lot of moisture for the system to work with. Skies will clear out during the second half of the day. Southwest winds at 10-15 mph will switch to the northwest behind the front. PM2.5 and Ozone are expected to drop into the GREEN range due to the frontal passage. ML


Note: Forecast available by e-mail, phone (205)933-0583, or on Twitter.



Daily Air Quality Index Report

Date:   Thursday, April 24, 2014
24-hr Collection Period Ending at:   02:00 PM



Today's Air Quality Information
Air Quality Index 77
Primary Pollutant Particulate Matter 2.5
Air Quality Description Moderate

Note: The Air Quality Index is not reported on weekends or holidays

Maximum Concentrations for Today's Reporting Period
Pollutant Site Concentration Index
Carbon Monoxide Fairfield 0.9  ppm 10
Particulate Matter 10 North Birmingham 48.0  ug/m3 44
Sulfur Dioxide North Birmingham 9.56  ppb 14
Ozone Helena 0.062  ppm 58
Particulate Matter 2.5 McAdory 24.5  ug/m3 77



National Ambient Air Quality Standards
Carbon Monoxide 8-hr Average Concentration Not to Exceed 9 ppm
Particulate Matter 10 24-hr Concentration Not to Exceed 150 ug/m3
Sulfur Dioxide 1-hr Concentration Not to Exceed 75 ppb
Ozone 8-hr Concentration Not to Exceed 0.075 ppm
Particulate Matter 2.5 24-hr Concentration Not to Exceed 35 ug/m3


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