AQ Index for Arizona

Home > USA > Arizona

Air Quality Index for Arizona

The highest AQ index in Arizona (as of 23:00 MST) is currently the West Pinal area. Particle Pollution (PM10) is measuring at 146 (Unhealthy for Sensitive Groups). This means members of sensitive groups may experience health effects. The general public is less likely to be affected.

Over the next few days, the highest Ozone (OZONE) will be in the Phoenix area. It is forecasted to be Moderate, meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

[View the ADEQ Hourly Forecast for Phoenix]
Ozone levels ended up in the low Moderate range yesterday, while PM10 and PM2.5 levels ended up in the Good AQI range. Looking ahead, we are forecasting mostly sunny skies, generally light winds, and warming temperature over the next several days. Unfortunately, we are forecasting afternoon temperatures to reach into the 90's by early next week.

As for the air quality, sunny skies and lighter winds will allow ozone levels to trend up through the forecast period. As for particulates, PM10 is forecast to stay in the Good AQI range through the weekend. However, we are forecasting PM10 to reach back into the low Moderates by the start of next week as soils dry out. PM2.5 on the other hand, is currently forecast to stay in the Good AQI range through the forecast period.

R. Nicoll
https://azdeq.gov/forecast/phoenix
Last Update: Friday, April 4, 2025, 9:00 AM

Range0 - 5051 - 100101 - 150151 - 200201 - 300301 - 500
Color
CategoryGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardous
Created with Raphaël 2.1.0

Last Updated 3 minutes ago

AQ Index Forecast by County in Arizona

Below is a list of counties in Arizona. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.

Maricopa Pima Yuma Pinal Yavapai
Coconino Mohave Cochise Santa Cruz Gila
Navajo Graham Apache La Paz Greenlee