Casa Grande
 
Data courtesy of:
 

AQI Forecast - http://www.epa.gov/airnow/today/forecast_aqi_20140730_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://www.epa.gov/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://www.epa.gov/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
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
55 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
50 
Good
Health Message: None
AQI - Pollutant Details
Ozone
55 
Moderate
Particles (PM10)
44 
Good
Ozone
50 
Good
Particles (PM10)
45 
Good
Forecast Discussion: Updated Wednesday, July 30, 2014 11:30 a.m. With no thunderstorms and relatively light winds yesterday’s PM10 AQI levels were in the good category for all locations except Cowtown. Upper level ridging will bring us continued dry conditions today and tomorrow but a return to monsoon moisture should begin to take place over southern and eastern areas of the county on Friday with more widespread areas of the county returning to more humid air over this upcoming weekend. The reoccurrence of humid air this weekend will mean better chances at storm development over the mountains to our north and east along with the opportunity for some of these storms to roll down into the valley/desert locations. Accordingly, the chances for blowing dust increases this weekend, so stay tuned to see if any PM10 Health Watches or High Pollution Advisories are issued. In the meantime the PM10 levels will mainly be in the good AQI category with only the Cowtown and Stanfield areas in the low/mid moderate range. Ozone levels for today and tomorrow will reach the low moderate range on the AQI scale in northern Pinal County as favorable transport winds from the Phoenix metro will help ozone and its precursors move into the Apache Junction and Gold Canyon area. Forecaster – B. Farrell

Current Conditions
Air Quality Index (AQI)
observed at 17:00 MST
38
Good
Health Message: None
AQI - Pollutant Details
Ozone 38 Good

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