San Tan Valley
 
Data courtesy of:
 

AQI Forecast - http://files.airnowtech.org/airnow/today/forecast_aqi_20150729_co_ut_az_nm.jpg
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 - http://files.airnowtech.org/airnow/today/cur_aqi_co_ut_az_nm.jpg
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
AQI Animation - http://files.airnowtech.org/airnow/today/anim_aqi_co_ut_az_nm.gif
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
 
Local Air Quality Resources
 
State Air Quality Resources
ADEQ Contact Information
ADEQ Regional Haze and Visibility
American Lung Association (ALA) of Arizona
Arizona Department of Environmental Quality Air Quality Division
Clean Air Make More - Maricopa County
Gila River Indian Community DEQ Air Quality Program
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
80 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
42 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM10)
80 
Moderate
Particles (PM10)
42 
Good
Forecast Discussion: Updated Wednesday, July 29, 2015 10 a.m. The anticipated dust arrived several hours earlier than expected last night as an early onset of blowing dust last night resulted in the Cowtown monitor exceeding the health standard for PM10. Additionally several other PM10 monitors had elevated levels of PM10 with San Tan Valley reaching the upper levels of the moderate AQI category. This was all due to storm development to the south and east last evening which created moderately strong outflow winds and blowing dust. Debris clouds from last night’s storm activity along with scattered light showers/sprinkles early today will eventually give way to some partial afternoon sunshine. The afternoon sunshine will help heat things up a bit though temperatures will remain below normal due to delayed sunshine from this morning’s cloud cover. This should limit the extent of storm development later today and tonight. An upper level disturbance moving through the area may help add an atmospheric ‘kicker’ that could make some of the storm cells pack a pretty good punch for winds and rain. Will keep the mention of blowing dust in today’s forecast along with the elevated PM10 AQI forecast numbers due to the outside chance for blowing dust. More storm chances on Thursday may bring some spotty blowing dust though the forecasted PM10 AQI levels are in the good to low AQI range due to the reduced likelihood of widespread blowing dust. High pressure will eventually build into the area this upcoming weekend and put a brief hold on the local monsoon activity. The ozone levels will remain in the good AQI category for the foreseeable future due to the periodic cloud cover, unfavorable wind directions and the gradual lowering of the sun angle in the sky that takes place this time of year. Forecaster – S. DiBiase

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