AIR QUALITY FORECAST FOR HUNTSVILLE

Thursday July 2, 2009

Primary Pollutant

OZONE

Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.






Recommended Actions



Air quality forecasts for the Huntsville area are provided by ADEM (the Alabama Department of Environmental Management).




National air quality forecasts. E-mail notification of forcasts available.





DAILY AIR QUALITY AND POLLEN DATA

July 1, 2009

Air Quality Index (AQI*)

49

AQI Category

GOOD

Responsible Pollutant

OZONE

OZONE 1-Hr Maximum

.061

OZONE 8-Hr Maximum

.058

PM 10

23 ug/m3

PM 2.5**

11.87 ug/m3

Pollen Data

DATE

6/24/09

CONC. grains/m3

0

INDEX

Low

PREDOMINATE POLLEN TYPE

Grass

Additional Pollen Information & Data





















*The Air Quality Index incorporates into a single index maximum concentrations of five criteria pollutants: ozone (1 and 8 hour averages), particulate matter, carbon monoxide, sulfur dioxide, and nitrogen dioxide. In Huntsville, ozone and fine particulate are the pollutants of principal concern. The scale of the index (0 - 500) is divided into general categories that are associated with health messages.

**AQI values for fine particulate matter (PM2.5) are based on continuous monitoring data, rather than a Federal Reference Method (FRM). FRM data are more accurate, but are not available within 24-hours.



2009 SEASONAL OZONE DATA - Maximum Values

DATE

8-HOUR AVERAGE

6/26/09

0.077

3/05/09

0.068

6/27/09

0.068

4/17/09

0.066

DATE

1-HOUR AVERAGE

6/26/09

0.086

6/27/09

0.075

3/05/09

0.074

4/17/09

0.071



















For additional information on air quality and/or an overview of program activities, please browse other sections of the Division Web Site. You may also contact:

Div. of Natural Resources., P.O. Box 308., Huntsville, AL 35804., (256)427-5750 or e-mail:D. E. Shea, Director

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