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Birmingham Area Air Quality Forecasts

DateAir Quality Index ForecastResponsible Pollutant
Friday, October 31, 2014GoodParticulate Matter 2.5
Saturday, November 01, 2014GoodParticulate Matter 2.5
Sunday, November 02, 2014GoodParticulate Matter 2.5
Monday, November 03, 2014ModerateParticulate Matter 2.5


Forecast Discussion
Friday: An amplifying ridge over the western US will deepen a trough over the eastern US. A shortwave moving down the backside of the trough will increase cloudiness across the area. High pressure over the northern Plains will begin to influence the area late in the day and begin to clear the clouds. Temperatures will only reach the mid 60s during the day and will plummet to near the freezing mark overnight. Winds will be from the northwest at 10-15 mph. PM2.5 is expected to be in the GREEN range. ML

Saturday-Monday: A trough will be over the area on Saturday and will give way to a ridge over the area on Sunday and Monday. A polar surface high pressure will begin the weekend over the northern Plains and will anchor itself over the SE on Sunday and Monday. This will mean the coldest weather of the fall season. Temperatures will only get to the low 50s on Saturday, mid 50s on Sunday, and will rise to the mid 60s on Monday as the high shifts east of the area and the upper ridge sits on top of the area. Winds will be from the N to NW at 15-20 mph on Saturday, from the N at 5-10 mph on Sunday, and from the S to SE at 5-10 mph on Monday. A morning inversion is expected to develop over the area Monday morning, which will likely spike PM2.5 concentrations for several hours. PM2.5 is expected to be in the GREEN range over the weekend and to rise into the YELLOW range on Monday. ML


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



Daily Air Quality Index Report

Date:   Friday, October 31, 2014
24-hr Collection Period Ending at:   02:00 PM



Today's Air Quality Information
Air Quality Index 55
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
Fairfield
0.8  ppm 9
Particulate Matter 10 North Birmingham 38.0  ug/m3 35
Sulfur Dioxide North Birmingham 17.83  ppb 25
Ozone Corner
Helena
0.038  ppm 32
Particulate Matter 2.5 North Birmingham 13.9  ug/m3 55



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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