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Primary air pollutant in the Valencia West area:
OZONE - 74 Moderate
If you are unusually sensitive to particle pollution, consider reducing your activity level or shorten the amount of time you are active outdoors.
Other Pollutants:
PM2.5 - 38 Good
PM10 - 17 Good
[View the ADEQ Hourly Forecast for Tucson]
Ozone levels improved quite a bit yesterday, dropping into the Good AQI category. As for PM10 and PM2.5, they also ended up in the Good range.
Looking ahead at ozone, we are forecasting concentrations to hover around the lower Moderate range the next couple days as troughing continues over the west coast. Beginning Sunday, we are forecasting ozone levels to trend back up as a ridge strengthens back over the region. As for particulates, we expect stable soils from recent rains to keep concentrations relatively low. We are forecasting PM10 and PM2.5 to stay in the Good AQI category through the forecast period.
R. Nicoll
https://azdeq.gov/forecast/tucson
Last Update: Friday, August 14, 2026, 8:19 AM
Primary Pollutant: OZONE - 71 Moderate
Secondary Pollutant: PM2.5 - 39 Good
Secondary Pollutant: PM10 - 19 Good
Primary Pollutant: OZONE - 64 Moderate
Secondary Pollutant: PM2.5 - 30 Good
Secondary Pollutant: PM10 - 22 Good
Primary Pollutant: OZONE - 71 Moderate
Secondary Pollutant: PM2.5 - 29 Good
Secondary Pollutant: PM10 - 20 Good
Primary Pollutant: OZONE - 67 Moderate
Secondary Pollutant: PM2.5 - 30 Good
Secondary Pollutant: PM10 - 21 Good
Primary Pollutant: OZONE - 61 Moderate
Secondary Pollutant: PM2.5 - 28 Good
Secondary Pollutant: PM10 - 19 Good
Primary Pollutant: OZONE - 58 Moderate
Secondary Pollutant: PM2.5 - 29 Good
Secondary Pollutant: PM10 - 20 Good