Worst air pollution Trenton, today and tomorrow
Today (9 August): Air quality in Trenton is fair. AQI, PM2.5, NO2, O3, and PM1 are fair; PM10, SO2, CO, and HCHO are good. Pollution peaks around 9:00 AM (O3: 34.2/100).
Tomorrow (10 August 2026): Air quality in Trenton is fair. All pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 39.6/100). Airmine updates local air quality forecasts four times daily.
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Trenton's air quality reflects New Jersey's most densely industrialised state corridor, with vehicle emissions from I-95 and the surrounding New Jersey Turnpike generating heavy freight NOₓ and the Delaware River's historic industrial legacy contributing background PM2.5. The Delaware River provides limited ventilation, while Trenton's position in the busy mid-Atlantic transportation corridor between Philadelphia and New York means it experiences elevated regional background pollution throughout the year.
Today - 9 August | Pollution peaks at 09:00
AQI:
Fair
34.2/100
PM2.5 (fine particles):
Fair
20.4/100
PM10 (coarse particles):
Good
5.9/100
NO2 (nitrogen dioxide):
Fair
33.2/100
O3 (ozone):
Fair
34.2/100
SO2 (sulfur dioxide):
Good
3.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.7/100
PM1 (ultrafine particles):
Fair
25.6/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 23:00
AQI:
Fair
39.6/100
PM2.5 (fine particles):
Fair
27.7/100
PM10 (coarse particles):
Good
8.8/100
NO2 (nitrogen dioxide):
Fair
39.6/100
O3 (ozone):
Fair
35.6/100
SO2 (sulfur dioxide):
Good
3.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.7/100
PM1 (ultrafine particles):
Fair
33.2/100
Pollen forecast in Trenton
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Trenton
Frequently Asked Questions
Is air quality bad in Trenton right now?
On 9 August 2026, overall air quality in Trenton is fair. AQI is the main air quality indicator at 34.2/100. Pollution peaks around 9:00 AM (O3: 34.2/100).
Will air quality be worse tomorrow in Trenton?
On 10 August 2026, air quality conditions in Trenton will be similar to today, with AQI forecast at fair at 39.6/100. Pollution peaks around 11:00 PM (NO2: 39.6/100).
When is air pollution at its worst in Trenton?
Trenton follows a fairly predictable seasonal air quality pattern: once summer ozone season ends, winter typically offers the cleanest air, but summer heat waves bring the highest ozone risk, compounded by pollution drifting in from the wider region. Suburban and rural areas generally see less of the persistent traffic-driven pollution that affects the urban core.
Are air quality levels in Trenton 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: 9 August 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.
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