Worst air pollution Downtown Coudersport - Coudersport, today and tomorrow
Today (20 September): Air quality in Downtown Coudersport is moderate. AQI and NO2 are moderate; O3 and PM1 are fair; PM2.5, PM10, SO2, CO, and HCHO are good. Pollution peaks around 5:00 PM (NO2: 43.2/100).
Tomorrow (21 September 2026): Air quality in Downtown Coudersport is fair. AQI improves to fair; NO2 decreases to fair; all other pollutants stay as today. Pollution peaks around 4:00 PM (NO2: 32.8/100). Airmine updates local air quality forecasts four times daily.
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Since Downtown Coudersport is the borough's small downtown near the Allegheny headwaters, its air quality mirrors Coudersport overall rather than following a separate local pattern. As with most sublevel sites, the broader city trend is the best guide to typical conditions here.
Today - 20 September | Pollution peaks at 17:00
AQI:
Moderate
43.2/100
PM2.5 (fine particles):
Good
11.9/100
PM10 (coarse particles):
Good
10.3/100
NO2 (nitrogen dioxide):
Moderate
43.2/100
O3 (ozone):
Fair
26.8/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Fair
21.1/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 16:00
AQI:
Fair
32.8/100
PM2.5 (fine particles):
Good
11.9/100
PM10 (coarse particles):
Good
10.5/100
NO2 (nitrogen dioxide):
Fair
32.8/100
O3 (ozone):
Fair
28.7/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
6.6/100
PM1 (ultrafine particles):
Fair
20.4/100
Other Landmarks in Coudersport
Frequently Asked Questions
Is air quality bad in Downtown Coudersport right now?
On 20 September 2026, overall air quality in Downtown Coudersport is moderate. AQI is the main air quality indicator at 43.2/100. Pollution peaks around 5:00 PM (NO2: 43.2/100).
Will air quality be worse tomorrow in Downtown Coudersport?
On 21 September 2026, air quality conditions in Downtown Coudersport will be better than today, with AQI forecast at fair at 32.8/100. Pollution peaks around 4:00 PM (NO2: 32.8/100).
When is air pollution at its worst in Downtown Coudersport?
Downtown Coudersport experiences the same seasonal air quality swings as the rest of Coudersport: the calmest air of the year usually arrives well after the summer ozone season fades, but a stretch of stagnant, humid summer days is usually when regional haze piles up the most. Suburban and rural areas generally see less of the persistent traffic-driven pollution that affects the urban core.
Are air quality levels in Downtown Coudersport 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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