Apache Junction
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170524_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.
 - 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 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
High Pollution Advisory Alerts
 
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)
85 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
75 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
85 
Moderate
Particles (PM10)
35 
Good
Ozone
75 
Moderate
Particles (PM10)
37 
Good
Forecast Discussion: Updated Tuesday, May 23, 2017 **OZONE HIGH POLLUTION ADVISORY IN EFFECT TUESDAY, MAY 23, 2017 ** The temperatures haven’t been the only thing on the rise lately, ozone nearly exceeded the health standard again in Apache Junction yesterday. Unfortunately favorable conditions for ozone formation today will bring another chance at an ozone exceedance in northern areas of the County. As a precaution, the ozone High Pollution Advisory (HPA) remains in effect for today. Anyone with respiratory and/or heart ailments should limit outdoor activities this afternoon/evening when the ozone levels are at the highest. Additionally, we can all play a part in reducing emissions by reducing vehicle trips, eliminate idling at drive-thru windows and refueling after dark. The ozone levels will drop a bit on Wednesday and even more on Thursday as temperatures drop and breezy conditions take over. The original forecast for today had Hidden Valley as the monitoring site with the highest PM10 levels due to light early morning easterly winds which were expected to transport the locally generated PM10 to the monitor. This is another example of how much of an inexact science forecasting is as the light easterly winds didn’t take place. The winds actually have come from a northwesterly direction early this morning which kept the locally generated emissions away from the monitor. We will try it one more time, the forecast is for light easterly to southeasterly winds first thing on Wednesday morning which are expected to impact the Hidden Valley monitor (i.e. upper end of moderate AQI category). The high pressure responsible for the above normal temperatures will be replaced by a trough that dips down from the Pacific Northwest and skirts by well to our north. It will bring a slight drop in the afternoon high temperatures from the triple digits back into the 90s for the Thursday-Saturday timeframe along with some breezy conditions. There is going to be some blowing dust on Thursday and that’s reflected in the PM10 forecasts (all sites slightly higher as compared to the other days in the forecast, excluding Hidden Valley). Slightly lower wind speeds on Friday and Saturday but still strong enough to keep the atmosphere well mixed (i.e. lower PM10 levels). PM2.5 levels will be in the good to low moderate range the next several days Forecaster: S. DiBiase

Current Conditions
Air Quality Index (AQI)
observed at 0:00 MST
45
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 45 Good

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