Phoenix
 
Data and Forecasts courtesy of:
 

 - https://files.airnowtech.org/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 Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20191120_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 - https://files.airnowtech.org/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: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
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
 
Data and Forecasts courtesy of:
Current Conditions
Air Quality Index (AQI)
observed at 5:00 MST
32
Good
Health Message: None
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Ozone 32 Good
Particles (PM10) 6 Good
Particles (PM2.5) 24 Good
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
37
Good
Health Message: None
Air Quality Index (AQI)
42
Good
Health Message: None
AQI - Pollutant Details
Ozone
37
Good
Particles (PM10)
26
Good
Particles (PM2.5)
28
Good
Ozone
42
Good
Particles (PM10)
33
Good
Particles (PM2.5)
35
Good
Forecast Discussion: [View the ADEQ Hourly Forecast for Phoenix]
Elevated particulate levels continue this morning, but once the rain gets here this afternoon, air quality will improve. A cut-off low off of Baja California along with a trough over the west coast will be affecting Arizona over the next few days. We expect rain to move into the Valley this afternoon and continue off-and-on through Thursday morning. The Valley looks like it may receive over an inch, while the higher terrain to the northeast will see more. The brunt of the rain is expected to be on Wednesday.

More stable soils from the rain should lower PM10 levels into the Good AQI category and keep them there through the forecast period. As for PM2.5, we expect Good AQI's for Wednesday and Thursday. However, PM2.5 is forecast to rebound quicker with more woodburning due to the cooler temperatures after the weather system moves through. As a result, we forecast PM2.5 to return to the Moderate range on Friday and Saturday.

R. Nicoll
http://azdeq.gov/phoenix/forecast
Last Update: Tuesday, November 19, 2019, 8:33 AM
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