Casa Grande
 
Data courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20160831_co_ut_az_nm.jpg Map Map Map Map Map Map Map Map Map Map Map Map Map
 
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.
 - https://files.airnowtech.org/airnow/today/cur_aqi_co_ut_az_nm.jpg Map Map Map Map Map Map Map Map Map Map Map Map Map
 
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 - https://files.airnowtech.org/airnow/today/anim_aqi_co_ut_az_nm.gif Map Map Map Map Map Map Map Map Map Map Map Map Map
 
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 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)
49 
Good
Health Message: None
Air Quality Index (AQI)
47 
Good
Health Message: None
AQI - Pollutant Details
Ozone
45 
Good
Particles (PM10)
49 
Good
Particles (PM2.5)
40 
Good
Ozone
45 
Good
Particles (PM10)
47 
Good
Particles (PM2.5)
41 
Good
Forecast Discussion: Updated Wednesday, August 31, 2016 ** PM10 HEALTH WATCH IN EFFECT WEDNESDAY AUGUST 31, 2016 ** A combination of breezy to gusty winds and local dust causing activities contributed to PM10 levels exceeding the health standard in Hidden Valley yesterday. That was the 21st PM10 exceedance at the Hidden Valley monitor in 2016. Once again the winds are breezy to gusty at times. A surface pressure gradient will continue to bring breezy to gusty easterly to southeasterly winds today. Also, the strong easterly to southeasterly wind flow has helped elevate the humidity. The added humidity will help scattered storms form and some cells may make their way into the desert locations. Therefore windblown dust is likely and PM10 levels are expected to approach the PM10 health standard today, so the PM10 AQI forecast in the health watch range remains for today. Anyone with respiratory and/or heart ailments should limit outdoor activities during periods of blowing dust. Less in the way of winds on Thursday and Friday as a transition to an approaching trough over the Pacific Northwest will help shift the winds to a westerly to southwesterly direction and usher in drier air. No storm activity is expected during the Friday through Sunday time period. However the winds will pick up in intensity over the weekend as the trough moves into and through Rockies to our north and so will the likelihood of blowing dust. We’ll have to keep tabs on how strong the winds will be and how likely it is for widespread blowing dust. In the meantime, the ozone levels in northern areas of the county will see a bit of an increase (low moderate) on Thursday and Friday before less favorable transport wind directions over the weekend knock ozone levels down in the good AQI category countywide. The PM2.5 levels are expected to be in the good AQI category. Forecaster: S. DiBiase

Current Conditions
Air Quality Index (AQI)
observed at 20:00 MST
38
Good
Health Message: None
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Ozone 38 Good
Particles (PM10) 25 Good

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Yesterday's Maps and Data
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