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_20180625_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
Data Not Available
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
108
Unhealthy for Sensitive Groups
Health Message: Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy exertion outdoors.
ACTION DAY
Data Not Available
AQI - Pollutant Details
Carbon Monoxide
9
Good
Ozone
108
Unhealthy for Sensitive Groups
Particles (PM10)
57
Moderate
Particles (PM2.5)
31
Good
Data Not Available
Forecast Discussion: The Phoenix valley exceeded the federal health standard for ozone on Friday with an AQI of 101 and yesterday (Saturday), came close at 93 AQI.

Today, high pressure is located west of Arizona as a trough brushes the state to the north. This pattern should allow for enough breezes at the surface and just above the surface to enable ozone levels to drop slightly from what was observed yesterday.

Monday and Tuesday, the broad area of high pressure will slide eastward and be over Arizona. This will result in another episode of calm winds and clear skies which is an ideal pattern for ozone formation here in the Valley of the Sun. As a result, an Ozone High Pollution Advisory is in effect for Phoenix tomorrow (Monday) with another advisory possible on Tuesday.

By Wednesday into Thursday, the ridge continues moving east and will be center over New Mexico as a trough drops down the West Coast. As a result, southwesterly winds will be on the rise. With Wednesday being more of a transition day, ozone will likely be elevated so an Ozone Health Watch will be possible. By Thursday, ozone levels are forecast to drop below health watch or advisory levels.

As for PM-10 (dust) expected spikes in the morning with reduced readings by the afternoon given how warm afternoon high temperatures will be through the forecast period.

–M. Pace
http://www.azdeq.gov/forecasting
Last Update: Sunday, June 24, 2018, 7:21 AM
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