Phoenix
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170117_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.
 - 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 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:
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
70 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
68 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Ozone
33 
Good
Particles (PM10)
28 
Good
Particles (PM2.5)
70 
Moderate
Ozone
37 
Good
Particles (PM10)
45 
Good
Particles (PM2.5)
68 
Moderate
Forecast Discussion: A moist and calm atmosphere has been left behind in the wake of this past weekend’s storm. Another round of rain was great for stabilizing soils and it may not be too long to see it again! First, we have to get through a couple days of stagnant conditions. The stagnant window overlapping with work week activities means at least middle Moderates for fine particulates (PM-2.5) today and tomorrow. Then starting Thursday the weather gets exciting again for air quality enrichment. At that time, Pacific energy becomes directed into the Desert Southwest. A series of weather systems passing overhead leads to multiple days of rain and breezy wind potential, in this case, late Thursday through Saturday. Given that extended range weather models have been pegging a “storm” of some nature for Arizona within this timeframe since last week, confidence is high for unsettled weather knocking on our doorstep. Overall, the projected pattern later this week would be a complex one, so the finer details, such as timing of heaviest rain and final rain amounts will continue to vary between weather model runs. This is highlighted by the current range of precipitation forecasted in Phoenix ending Friday afternoon by the NCEP SREF Plume model: 0.10 to 1.2 inches. Look for an updated forecast tomorrow morning. –J.Malloy Last Update: Tuesday, January 17, 2017, 10:07 AM

Current Conditions
Air Quality Index (AQI)
observed at 20:00 MST
56
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 36 Good
Particles (PM10) 32 Good
Particles (PM2.5) 56 Moderate

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