Worst air pollution Passaic, today and tomorrow
Today (16 July): Air quality in Passaic is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 37.6/100).
Tomorrow (17 July 2026): Air quality in Passaic is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 40.4/100). 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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Passaic's air quality reflects the Passaic River valley in northern New Jersey, with vehicle emissions from I-80 and Route 21 and the surrounding industrial and residential character contributing elevated NOₓ and PM2.5. The broader New York-New Jersey metropolitan area's combined traffic and industrial emissions consistently elevate background pollution across the entire Passaic valley, while the Garret Mountain ridge provides modest topographic variation throughout the year.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
37.6/100
PM2.5 (fine particles):
Good
9.9/100
PM10 (coarse particles):
Good
10.0/100
NO2 (nitrogen dioxide):
Good
3.3/100
O3 (ozone):
Fair
37.6/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.1/100
PM1 (ultrafine particles):
Good
5.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Medium
40.4/100
PM2.5 (fine particles):
Good
6.7/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Good
5.7/100
O3 (ozone):
Medium
40.4/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Good
4.3/100
Pollen forecast in Passaic
View pollen forecastFrequently Asked Questions
Is air quality bad in Passaic right now?
On 16 July 2026, overall air quality in Passaic is fair. AQI is the main air quality indicator at 37.6/100. Pollution peaks around 12:00 PM (O3: 37.6/100).
Will air quality be worse tomorrow in Passaic?
On 17 July 2026, air quality conditions in Passaic will be better than today, with AQI forecast at medium at 40.4/100. Pollution peaks around 12:00 PM (O3: 40.4/100).
When is air pollution at its worst in Passaic?
Passaic's air quality follows a clear seasonal pattern. In short, the calmest air of the year usually arrives well after the summer ozone season fades, whereas summer heat waves bring the highest ozone risk, compounded by pollution drifting in from the wider region. Dense urban traffic corridors add a persistent background level of pollution that varies less by season than ozone does.
Are air quality levels in Passaic 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app