Phoenix
 
Data courtesy of:
 

AQI Forecast - http://www.epa.gov/airnow/today/forecast_aqi_20140829_phoenix_az.jpg
 
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_phoenix_az.jpg
 
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_phoenix_az.gif
 
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
Maricopa County Air Quality Department | Maricopa County Dust Forecast | Today's AQI and Forecast(AZ DEQ)
 
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)
87 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
84 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
87 
Moderate
Particles (PM10)
25 
Good
Particles (PM2.5)
23 
Good
Carbon Monoxide
Good
Ozone
84 
Moderate
Particles (PM10)
24 
Good
Particles (PM2.5)
22 
Good
Carbon Monoxide
Good
Forecast Discussion: Day by day, we can see the monsoon pattern deteriorating with the upper-level high sitting off the west coast of Baja, forcing winds out of the northwest over Phoenix. Our primary moisture source over Mexico is forced out west over southern Baja and the Pacific Ocean. Thus, Phoenix will continue to bake under the hot sun for the next few days with daytime temperatures in the triple digits. Ozone is going to be the main concern through this forecast period as transport can take place. Forecast models reveal ozone concentrations increasing into the upper Moderate range by tomorrow, with a chance of exceednace by late afternoon. However, the confidence in these models is not very high and the situation will be further assessed tomorrow. PM concentrations on the other hand will cooperate and will remain in the middle Good range over the next 72 hours, if not longer. Check back on Friday for a closer look at the weekend's weather and air quality. Until then, have a good day! -P.Patel

Current Conditions
Air Quality Index (AQI)
observed at 10:00 MST
43
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5) 43 Good
Ozone 37 Good

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