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Birmingham Area Air Quality Forecasts

DateAir Quality Index ForecastResponsible Pollutant
Thursday, September 18, 2014ModerateParticulate Matter 2.5
Friday, September 19, 2014ModerateParticulate Matter 2.5


Forecast Discussion
Thursday: Quiet and dry weather will persist for another day. The area will be on the backside of a trough and to the south of a surface high pressure. High temperatures will reach the mid 80s, which is normal for this time of year. Winds will be from the north around 5 mph. PM2.5 is expected to be in the YELLOW range. Ozone is expected to be in the GREEN range. ML

Friday: High pressure across the Great Lakes will shift eastward over New England and allow a wedge setup to develop. Light northeast winds will shift to the east by late morning with some increase in clouds and the slight chance of a few isolated showers during the afternoon. Highs will be in the upper 80's. PM2.5 will remain in the YELLOW range due to an overnight inversion, low mixing heights and little mixing. Ozone on the other hand will only rise into the upper GREEN range for Friday. SS


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



Daily Air Quality Index Report

Date:   Thursday, September 18, 2014
24-hr Collection Period Ending at:   02:00 PM



Today's Air Quality Information
Air Quality Index 59
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 Arkadelphia 0.6  ppm 7
Particulate Matter 10 Tarrant 30.0  ug/m3 28
Sulfur Dioxide North Birmingham 10.25  ppb 15
Ozone Helena 0.048  ppm 41
Particulate Matter 2.5 North Birmingham 15.8  ug/m3 59



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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