Phoenix
 
Data courtesy of:
 

AQI Forecast - http://www.epa.gov/airnow/today/forecast_aqi_20150401_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)
58 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
60 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
58 
Moderate
Particles (PM10)
44 
Good
Particles (PM2.5)
35 
Good
Carbon Monoxide
11 
Good
Ozone
60 
Moderate
Particles (PM10)
46 
Good
Particles (PM2.5)
28 
Good
Carbon Monoxide
10 
Good
Forecast Discussion: PM-10 once again hit the low Moderate level yesterday, this time at the Greenwood monitor. This was the result of local activity around the monitoring site, as adjacent monitors did not record such high values of PM-10 concentrations. Local activity also continues to occur around the West 43rd monitor, evident by its hourly measurements and elevated daily average. Fortunately, only one monitor reached Moderate ozone levels yesterday. The typical signature of higher ozone concentrations in the northeast Valley was present, with all northeast monitors recording daily maximum 8-hr AQI’s in the upper-mid 40s. Locations in and around Phoenix were generally in the lower 40s. The main weather feature affecting this forecast is a relatively weak trough that is projected to swing through the Mountain West Thursday. Though this feature is not expected to dig southward enough to provide Arizona with interesting weather, associated strong, upper-level winds are forecast by models to pass right over central Arizona today (Wednesday) and Thursday. This means elevated surface wind speeds and gusty conditions both days: west-southwest winds between 5-10 mph with potential gusts up 20 mph. Localized pockets of dust will certainly be possible each day, especially since soils are pretty dry. Wind speed and direction will be less conducive to blowing dust on Friday; however, can’t rule out the possible impact of local activity. Shifting gears, ozone will stay in the Moderate range this week. Thursday may potentially see higher levels as import from southern California looks possible due to the trough passage. Cloud cover could help keep ozone in check on Friday. Check back tomorrow for the next air quality update. Until then, have a good day! -M.Graves

Current Conditions
Air Quality Index (AQI)
observed at 17:00 MST
45
Good
Health Message: None
AQI - Pollutant Details
Ozone 45 Good
Particles (PM10) 31 Good
Particles (PM2.5) 23 Good

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Phoenix, AZ
 
Phoenix, AZ

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