Tucson
 
Data and Forecasts courtesy of:
 

 - https://files.airnowtech.org/airnow/today/cur_aqi_co_ut_az_nm.jpg Map Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments     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_20180821_co_ut_az_nm.jpg Map Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments     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_co_ut_az_nm.gif Map Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments     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
Pima County Environmental Quality Air Quality Information | Today's AQI (Pima County 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 11:00 MST
42
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 42 Good
Particles (PM10) 16 Good
Particles (PM2.5) 28 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)
58
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
54
Moderate
Particles (PM10)
39
Good
Ozone
58
Moderate
Particles (PM10)
31
Good
Forecast Discussion: The airport yesterday afternoon reported thunderstorms with heavy rain and winds up to 56 mph. The strong winds did kick up some dust, particularly for the northern edge of Tucson since the rain was more focused to the south. As a result, the Rillito monitor on the north side of town reached into the low-Moderate AQI category, while the rest of the monitors stayed in the Good range.

Looking ahead, more afternoon thunderstorms are likely, and that could lead to brief PM10 spikes. However, similar to yesterday, dust will likely be localized and short-lived if it occurs. We are keeping our PM10
As for ozone, the AQI yesterday managed to stay in the Good range. Going forward, ozone levels will likely hover around the lower-Moderate AQI range. Ozone is forecast to be a little higher for the end of the week due to calmer weather conditions, however, overall we aren't expecting ozone to be much of an issue during this forecast period.

–R. Nicoll
Check out the new ADEQ hourly forecast here: http://azdeq.gov/tucson/forecast
Last Update: Tuesday, August 21, 2018, 8:35 AM
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Tucson, AZ
 
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