Worst air pollution Kingsessing - Philadelphia, today and tomorrow
Today (20 September): Air quality in Kingsessing is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (NO2: 35.3/100).
Tomorrow (21 September 2026): Air quality in Kingsessing is fair. All pollutants stay as today. Pollution peaks around 2:00 PM (NO2: 37.7/100). 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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In Kingsessing, persistent traffic congestion paired with dense urban land use keeps particulate and nitrogen dioxide levels elevated here. Green space nearby provides modest natural relief, filtering a portion of this particulate load. Wind patterns on any given day can shift this picture meaningfully in either direction. Short-term spikes can occur with unusual weather or nearby construction and traffic events.
Today - 20 September | Pollution peaks at 18:00
AQI:
Fair
35.3/100
PM2.5 (fine particles):
Good
19.9/100
PM10 (coarse particles):
Good
14.6/100
NO2 (nitrogen dioxide):
Fair
35.3/100
O3 (ozone):
Fair
30.0/100
SO2 (sulfur dioxide):
Good
2.0/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
11.6/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 14:00
AQI:
Fair
37.7/100
PM2.5 (fine particles):
Good
19.6/100
PM10 (coarse particles):
Good
13.3/100
NO2 (nitrogen dioxide):
Fair
37.7/100
O3 (ozone):
Fair
33.7/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
4.0/100
PM1 (ultrafine particles):
Good
9.7/100
Other Landmarks in Philadelphia
Sports venues in Philadelphia
Frequently Asked Questions
Is air quality bad in Kingsessing right now?
On 20 September 2026, overall air quality in Kingsessing is fair. AQI is the main air quality indicator at 35.3/100. Pollution peaks around 6:00 PM (NO2: 35.3/100).
Will air quality be worse tomorrow in Kingsessing?
On 21 September 2026, air quality conditions in Kingsessing will be similar to today, with AQI forecast at fair at 37.7/100. Pollution peaks around 2:00 PM (NO2: 37.7/100).
When is air pollution at its worst in Kingsessing?
The heart of winter usually marks the low point for air quality across this urban stretch, driven by the combination of winter heating demand and dense traffic under calm, cold conditions. As the weather warms, ozone typically overtakes particulate matter as the top concern here, with summer's combination of heat, sun, and dense traffic driving some of the year's highest ozone readings.
Are air quality levels in Kingsessing 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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