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_20170919_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 15:00 MST
61
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 58 Moderate
Particles (PM10) 61 Moderate
Particles (PM2.5) 25 Good
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
54
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
54
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Carbon Monoxide
8
Good
Ozone
54
Moderate
Particles (PM10)
53
Moderate
Particles (PM2.5)
33
Good
Carbon Monoxide
8
Good
Ozone
51
Moderate
Particles (PM10)
54
Moderate
Particles (PM2.5)
30
Good
Forecast Discussion: Air quality was not too bad at all yesterday. Most of the particulate and ozone network finished the day reporting Good AQI. Those few monitors breaking into the Moderate AQI category were on the lower end. Complimentary air quality trends endure today and likely tomorrow, as well. A changing weather pattern is in progress. The jet stream (fast upper level winds that steer Pacific storms) is cutting through the Great Basin, but buckles later in the week to create a deep low-pressure trough over southern California and Arizona Thursday-Saturday. Strongest winds of the week (20-30 mph) arrive Thursday afternoon when the trough enters the area causing the surface pressure gradient to be tight and maximizing daytime mixing. Some blowing dust and haze is possible, especially for locations where gusty southwesterly winds align with dry dust sources (e.g., the lower Salt River) or are downwind of open deserts. Breezier afternoon winds are in the works even before the main event Thursday because of our proximity to the developing Pacific trough. Consequently, peak daily ozone will struggle to reach higher than the lower Moderates until high-pressure ridging later in the weekend builds causing to winds back down. –J. Malloy http://www.azdeq.gov/programs/air-quality-programs/air-forecasting Last Update: Tuesday, September 19, 2017, 8:02 AM
Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

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