Phoenix
 
Data courtesy of:
 

AQI Forecast - http://www.epa.gov/airnow/today/forecast_aqi_20150524_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
Gila River Indian Community DEQ Air Quality Program
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
65 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
65 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
65 
Moderate
Particles (PM10)
35 
Good
Particles (PM2.5)
25 
Good
Carbon Monoxide
Good
Ozone
65 
Moderate
Particles (PM10)
32 
Good
Particles (PM2.5)
27 
Good
Carbon Monoxide
Good
Forecast Discussion: Yesterday, Moderate ozone levels tended to favor the northeast Valley, while most monitors elsewhere throughout the Valley recorded max 8-hr AQI averages in the upper 40s. We can thank generally west-northwesterly winds (not too strong) and mostly sunny/sunny skies for this ozone distribution. Regarding PM-10, it appears that local activity in the northwest Valley led to higher concentrations…only the Zuni Hills monitor reached into the Moderate category. The system that has brought well-below normal high temperatures to Phoenix this Memorial Day weekend will continue to move eastward, gradually exiting the region over the next several days. Consequently, temperatures are forecast to climb back up, from upper 80s today to mid-90s by Tuesday. Overall, weather conditions will be rather mild through Tuesday, with mostly sunny/sunny skies and relatively light winds expected each day. This will ultimately allow maximum ozone concentrations to remain in the Moderate range. Moreover, winds are expected to be out of the west-southwest to west during each afternoon, suggesting continued highest ozone levels in the northeast Valley. PM-10 concentrations are expected to stay down as winds are not expected to be favorable for blowing dust, unless local activity near a monitoring site skews its daily AQI average. Check back tomorrow for more. Until then, enjoy your Memorial Day weekend! -M.Graves

Current Conditions
Air Quality Index (AQI)
observed at 15:00 MST
51
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone 51 Moderate
Particles (PM2.5) 35 Good
Particles (PM10) 16 Good

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