Worst air pollution Top of the Rockies Zip Line - Leadville, today and tomorrow
Today (20 September): Air quality in Top of the Rockies Zip Line is moderate. AQI and O3 are moderate; PM2.5 and NO2 are fair; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 45.7/100).
Tomorrow (21 September 2026): Air quality in Top of the Rockies Zip Line is moderate. NO2 increases to moderate; all other pollutants stay as today. Pollution peaks around 7:00 AM (O3: 53.5/100). Airmine updates local air quality forecasts four times daily.
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In Top of the Rockies Zip Line, quieter roads here mean surrounding agricultural activity, more than congestion, tends to shape local particulate levels. This is partly offset by nearby tree cover, which filters out some particulate matter naturally. This general baseline tends to hold across nearby areas with similar traffic and land use.
Today - 20 September | Pollution peaks at 08:00
AQI:
Moderate
45.7/100
PM2.5 (fine particles):
Fair
36.2/100
PM10 (coarse particles):
Good
18.5/100
NO2 (nitrogen dioxide):
Fair
30.2/100
O3 (ozone):
Moderate
45.7/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
2.8/100
PM1 (ultrafine particles):
Good
4.7/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 07:00
AQI:
Moderate
53.5/100
PM2.5 (fine particles):
Fair
31.3/100
PM10 (coarse particles):
Good
15.7/100
NO2 (nitrogen dioxide):
Moderate
50.2/100
O3 (ozone):
Moderate
53.5/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
3.2/100
PM1 (ultrafine particles):
Good
4.1/100
Other Landmarks in Leadville
Frequently Asked Questions
Is air quality bad in Top of the Rockies Zip Line right now?
On 20 September 2026, overall air quality in Top of the Rockies Zip Line is moderate. AQI is the main air quality indicator at 45.7/100. Pollution peaks around 8:00 AM (O3: 45.7/100).
Will air quality be worse tomorrow in Top of the Rockies Zip Line?
On 21 September 2026, air quality conditions in Top of the Rockies Zip Line will be similar to today, with AQI forecast at moderate at 53.5/100. Pollution peaks around 7:00 AM (O3: 53.5/100).
When is air pollution at its worst in Top of the Rockies Zip Line?
December through February tends to be calm here, with wind speeds averaging around 11 km/h and temperatures near -12°C -- conditions cool and still enough for particulate matter and smoke to settle near the ground instead of dispersing. June through August runs warmer, averaging around 12°C -- hot enough for strong sun and heat to drive ground-level ozone formation.
Are air quality levels in Top of the Rockies Zip Line 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: 20 September 2026 at 20:27 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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