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_20180523_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
62
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
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 50 Good
Particles (PM10) 62 Moderate
Particles (PM2.5) 31 Good
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
93
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
97
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Carbon Monoxide
9
Good
Ozone
93
Moderate
Particles (PM10)
47
Good
Particles (PM2.5)
27
Good
Carbon Monoxide
10
Good
Ozone
97
Moderate
Particles (PM10)
48
Good
Particles (PM2.5)
27
Good
Forecast Discussion: Yesterday’s air quality was for the most part on track. It was windy most of the day, yet only occasional PM-10 spikes were noted. Only two monitors hit Moderate AQI levels (West 43rd at 51 AQI and South Scottsdale at 87 AQI). The disparity between South Scottsdale and the rest of the monitoring network was due to early morning localized activity causing hourly readings around 1,000 ug/m3.

Back to the forecast. Today is really looking quite similar to yesterday in terms of the weather pattern. Ozone may be slightly higher as ozone precursors become more plentiful going deeper into the workweek. Particulates valley wide are inclined to only top out in the upper Good range based on this morning’s improved trends in the industrial districts versus Monday.

The next dry Pacific storm (yes, another dry one) step-ups Phoenix’s surface winds on Saturday. The lull in dispersion before then is when we are concerned about ozone buildup. An Ozone Health Watch goes into effect for Wednesday and will likely need to be extended through Friday.


–J. Malloy
http://www.azdeq.gov/forecasting
Last Update: Tuesday, May 22, 2018, 9:04 AM
Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

E-Mail Notification
 
Visibility Camera
Phoenix, AZ
 
Phoenix, AZ

View Other Visibility Cameras