Worst air pollution Big Bend, today and tomorrow
Today (30 August): Air quality in Big Bend is very poor. AQI, PM2.5, and PM10 are very poor; O3, SO2, and PM1 are fair; NO2, CO, and HCHO are good. Pollution peaks around 4:00 PM (PM10: 100/100).
Tomorrow (31 August 2026): Air quality in Big Bend is very poor. SO2 decreases to good; all other pollutants stay as today. Pollution peaks around 5:00 AM (PM10: 100/100). 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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Big Bend National Park's air quality benefits from the remote Chihuahuan Desert mountain and canyon position at the Texas-Mexico border, with consistent desert and mountain winds providing reliable natural ventilation across the extraordinary remote wilderness. The remote setting generally maintains excellent conditions with outstanding visibility, while trans-boundary industrial emissions from Coahuila Mexico can elevate PM2.5 on certain wind days and summer wildfire smoke is an increasingly frequent seasonal concern throughout the year.
Today - 30 August | Pollution peaks at 16:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Very poor
81.0/100
PM10 (coarse particles):
Very poor
100/100
NO2 (nitrogen dioxide):
Good
10.2/100
O3 (ozone):
Fair
28.3/100
SO2 (sulfur dioxide):
Fair
24.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.3/100
PM1 (ultrafine particles):
Fair
26.6/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 05:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Very poor
92.1/100
PM10 (coarse particles):
Very poor
100/100
NO2 (nitrogen dioxide):
Good
12.3/100
O3 (ozone):
Fair
22.9/100
SO2 (sulfur dioxide):
Good
7.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.2/100
PM1 (ultrafine particles):
Fair
31.9/100
Pollen forecast in Big Bend
View pollen forecastFrequently Asked Questions
Is air quality bad in Big Bend right now?
On 30 August 2026, overall air quality in Big Bend is very poor. AQI is the main air quality indicator at 100/100. Pollution peaks around 4:00 PM (PM10: 100/100).
Will air quality be worse tomorrow in Big Bend?
On 31 August 2026, air quality conditions in Big Bend will be similar to today, with AQI forecast at very poor at 100/100. Pollution peaks around 5:00 AM (PM10: 100/100).
When is air pollution at its worst in Big Bend?
Big Bend National Park experiences the same seasonal air quality swings as the rest of Big Bend — the cleanest air usually comes in the milder shoulder seasons of spring and autumn, whereas intense summer heat drives persistent ozone problems, particularly in and around the largest metro areas. Dust from West Texas can occasionally drift across the state and add to particulate levels.
Are air quality levels in Big Bend 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: 30 August 2026 at 14:32 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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