Worst air pollution Center Square - Upper Allen Township, today and tomorrow
Today (30 August): Air quality in Center Square is moderate. AQI and O3 are moderate; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (O3: 41.8/100).
Tomorrow (31 August 2026): Air quality in Center Square is fair. AQI improves to fair; O3 decreases to fair; all other pollutants stay as today. Pollution peaks around 11:00 AM (O3: 30.5/100). Airmine updates local air quality forecasts four times daily.
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In Center Square, traffic is comparatively light, so nearby farmland dust and seasonal burning shape air quality more than road congestion. Tree cover in the area softens the impact somewhat, catching particulates before they disperse further. Daily conditions can shift noticeably depending on wind, temperature, and traffic patterns. This general baseline tends to hold across nearby areas with similar traffic and land use.
Today - 30 August | Pollution peaks at 10:00
AQI:
Moderate
41.8/100
PM2.5 (fine particles):
Good
7.9/100
PM10 (coarse particles):
Good
6.0/100
NO2 (nitrogen dioxide):
Good
13.5/100
O3 (ozone):
Moderate
41.8/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.6/100
PM1 (ultrafine particles):
Good
5.6/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 11:00
AQI:
Fair
30.5/100
PM2.5 (fine particles):
Good
9.8/100
PM10 (coarse particles):
Good
7.6/100
NO2 (nitrogen dioxide):
Good
10.0/100
O3 (ozone):
Fair
30.5/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
5.6/100
Other Landmarks in Upper Allen Township
Frequently Asked Questions
Is air quality bad in Center Square right now?
On 30 August 2026, overall air quality in Center Square is moderate. AQI is the main air quality indicator at 41.8/100. Pollution peaks around 10:00 AM (O3: 41.8/100).
Will air quality be worse tomorrow in Center Square?
On 31 August 2026, air quality conditions in Center Square will be better than today, with AQI forecast at fair at 30.5/100. Pollution peaks around 11:00 AM (O3: 30.5/100).
When is air pollution at its worst in Center Square?
The depths of winter usually mark the low point for local air quality, as cold, still air holds wood smoke and heating emissions close to the ground through winter. Summer shifts the concern toward ground-level ozone here too, with summer's heat and sunlight together producing some of the year's highest local ozone levels.
Are air quality levels in Center Square 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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