Phoenix
 
Data courtesy of:
 

AQI Forecast - http://www.epa.gov/airnow/today/forecast_aqi_20140827_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)
61 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
80 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
61 
Moderate
Particles (PM10)
30 
Good
Particles (PM2.5)
26 
Good
Carbon Monoxide
Good
Ozone
80 
Moderate
Particles (PM10)
28 
Good
Particles (PM2.5)
25 
Good
Carbon Monoxide
Good
Forecast Discussion: The change in the monsoon pattern is becoming more and more evident as we near the end of August. Quiet days are ahead as a high pressure system strengthens to the northwest. Dry northwesterly winds will prevail much of this forecast period. As this dry slot invades central Arizona, cloud cover will dissipate as the moisture recedes. Thunderstorm activity will be generally suppressed over Phoenix. PM-10 concentrations will remain in the middle Good range as a result of the lack of thunderstorm outflows. Ozone, on the other hand, will continue to increase as more sunlight penetrates the atmosphere over Phoenix due to the diminishing cloud cover. In addition, Ozone import is also possible from southern California. Therefore, Ozone levels are expected to reach as high as the middle Moderate range by today and tomorrow afternoon. With sunny skies over Phoenix, temperatures are expected to be over 100°F during the afternoon hours of this forecast period. Check back tomorrow for more. Until then, have a good day! -P.Patel

Current Conditions
Air Quality Index (AQI)
observed at 13:00 MST
36
Good
Health Message: None
AQI - Pollutant Details
Ozone 36 Good
Particles (PM2.5) 22 Good

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