Phoenix
 
Data courtesy of:
 

AQI Forecast - http://www.epa.gov/airnow/today/forecast_aqi_20141221_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)
89 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
78 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
89 
Moderate
Ozone
38 
Good
Particles (PM10)
20 
Good
Carbon Monoxide
13 
Good
Particles (PM2.5)
78 
Moderate
Ozone
36 
Good
Particles (PM10)
35 
Good
Carbon Monoxide
18 
Good
Forecast Discussion: The high pressure overhead creating stagnant conditions combined with the increased weekend fireplace activity elevated PM2.5 into the high Moderates! Looking ahead, the atmosphere is not expected to change too drastically. A ridge will continue to strengthen this midweek with the back side of the trough exiting the region sometime Tuesday. Winds are relatively weak near the surface which can amplify stagnant conditions and result in poor dispersion. Temperatures will be soaring in the low 70s today and drop to mid 60s by tomorrow when the cooler northern air advects into the Valley. As we progress into the week, the atmosphere is anticipated to become drier and thus any sign of precipitation is not in sight for the near future. However, looking at the air quality today, PM2.5 values can be in the upper Moderates again. Concentrations in West and South Phoenix were already reporting higher values than the previous day. Depending on the amount of burning occurring late tonight, there is a small chance for an exceedance. But it is not likely since burning on Sunday nights tends to be less than Friday and Saturday. Check back tomorrow for more. Until then, have a good day! -P.Patel

Current Conditions
Air Quality Index (AQI)
observed at 15:00 MST
79
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 79 Moderate
Ozone 31 Good
Particles (PM10) 14 Good

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