Casa Grande
 
Data courtesy of:
 

AQI Forecast - http://www.epa.gov/airnow/today/forecast_aqi_20150530_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
 
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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)
105 
Unhealthy for Sensitive Groups
Health Message: Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
55 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
105 
Unhealthy for Sensitive Groups
Particles (PM10)
41 
Good
Ozone
55 
Moderate
Particles (PM10)
39 
Good
Forecast Discussion: Updated Friday, May 29, 2015 9:40 a.m. **OZONE HIGH POLLUTION ADVISORY FRIDAY & SATURDAY, MAY 29-30, 2015** High pressure will be in control of the region over the weekend and early next week. The most noticeable aspect will be the hot temperatures with afternoon highs breaking the century mark. There will be light winds and abundant sunshine which will also help in the formation of ozone. The levels of ozone are expected to exceed the health based standards today and Saturday and as such an ozone High Pollution Advisory (HPA) is in effect today and again on Saturday. Anyone with respiratory and/or heart ailments should limit outdoor activities during the afternoon and early evening hours when ozone levels are typically the highest. Less favorable wind directions along with typically lower emissions on Sunday will result in lower ozone levels, stronger winds on Monday will help ozone levels drop even more. PM10 level meanwhile will reach low moderate in a few locations today and Saturday due to the stagnant conditions expected during the early morning and evening hours. The stagnant conditions will help trap the particulates associated with dust causing activities close to the ground and thus result in elevated PM10 concentrations. Lower PM10 levels are expected on Sunday due to typically lower dust causing activities. The usual bump up in PM10 levels is expected on Monday with a few monitoring locations making it into the low moderate AQI category. Forecaster – S. DiBiase

Current Conditions
Air Quality Index (AQI)
observed at 8:00 MST
17
Good
Health Message: None
AQI - Pollutant Details
Ozone 17 Good

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