Worst air pollution Meteor Crater - Flagstaff, today and tomorrow
Today (9 August): Air quality in Meteor Crater is poor. AQI and NO2 are poor; PM2.5, PM10, and PM1 are fair; O3 and SO2 are medium; CO and HCHO are good. Pollution peaks around 5:00 PM (NO2: 73.2/100).
Tomorrow (10 August 2026): Air quality in Meteor Crater is poor. O3 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 74.0/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Flagstaff's Meteor Crater air quality benefits from the elevated Arizona high desert plateau position at 1,620 metres near Winslow, with consistent Colorado Plateau westerly winds providing reliable ventilation around the world's best-preserved meteorite impact site. The remote high desert setting generally maintains excellent conditions, while windblown high desert dust contributes PM10 during dry windy periods and the extraordinary geological landmark's remote plateau position maintains generally good conditions throughout most of the year.
Today - 9 August | Pollution peaks at 17:00
AQI:
Poor
73.2/100
PM2.5 (fine particles):
Fair
35.0/100
PM10 (coarse particles):
Fair
26.9/100
NO2 (nitrogen dioxide):
Poor
73.2/100
O3 (ozone):
Medium
57.7/100
SO2 (sulfur dioxide):
Medium
42.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Fair
27.7/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 23:00
AQI:
Poor
74.0/100
PM2.5 (fine particles):
Fair
39.8/100
PM10 (coarse particles):
Fair
36.3/100
NO2 (nitrogen dioxide):
Poor
74.0/100
O3 (ozone):
Fair
38.8/100
SO2 (sulfur dioxide):
Medium
40.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.0/100
PM1 (ultrafine particles):
Fair
30.6/100
Other Landmarks in Flagstaff
Frequently Asked Questions
Is air quality bad in Meteor Crater right now?
On 9 August 2026, overall air quality in Meteor Crater is poor. AQI is the main air quality indicator at 73.2/100. Pollution peaks around 5:00 PM (NO2: 73.2/100).
Will air quality be worse tomorrow in Meteor Crater?
On 10 August 2026, air quality conditions in Meteor Crater will be similar to today, with AQI forecast at poor at 74.0/100. Pollution peaks around 11:00 PM (NO2: 74.0/100).
When is air pollution at its worst in Meteor Crater?
Conditions at Meteor Crater vary noticeably across the seasons, as the calmest, cleanest stretch usually falls between late autumn and early spring; by contrast, summer heat drives ozone formation, and blowing dust from spring winds can push particulate levels up abruptly. Monsoon storms in July and August can either clear the air with rain or stir up dust ahead of the storm front.
Are air quality levels in Meteor Crater based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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