SmogRank / World / North America / United States / New Jersey
Most polluted cities in New Jersey, United States
19 measured cities, last 30 days; 0 above the WHO 24-hour guideline. Worst: Palmyra at 6.9 µg/m³, #1,360 in the world.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1Bayonne 4%
- 2Palmyra 0%
- 3Camdenlow-cost sensors 0%
- 4Pennsauken 0%
- 5Elizabeth 0%
- 6Linden 0%
- 7Jersey City 0%
- 8Smithvillelast full day 3 Oct 0%
- 8Toms River 0%
- 10Ewing 0%
- 10Newark 0%
- 10Trenton 0%
- 13Paterson 0%
- 14Fort Lee 0%
- 14Mendham 0%
- 16Atlantic City 0%
- 17New Brunswick 0%
- 18Paulsboro 0%
- 19South Vineland 0%
Low-cost sensors: consumer units, counted only in cities with no government-grade monitor; they read close to reference monitors on the whole, but 15 to 25% high in humid air. How we use them.
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Estimated: cities without a monitor
New Jersey cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Edison | ≈ 5 µg/m³ |
| Clifton | ≈ 7 µg/m³ |
| Brick | ≈ 5 µg/m³ |
| Passaic | ≈ 7 µg/m³ |
| Cherry Hill | ≈ 8 µg/m³ |
| Union City | ≈ 7 µg/m³ |
| Middletown | ≈ 6 µg/m³ |
| East Orange | ≈ 5 µg/m³ |
| North Bergen | ≈ 7 µg/m³ |
| Irvington | ≈ 5 µg/m³ |
| Vineland | ≈ 6 µg/m³ |
| Wayne | ≈ 5 µg/m³ |
| Union | ≈ 5 µg/m³ |
| Piscataway | ≈ 5 µg/m³ |
| Jackson | ≈ 5 µg/m³ |
| Lakewood | ≈ 5 µg/m³ |
| Hoboken | ≈ 7 µg/m³ |
| West New York | ≈ 7 µg/m³ |
| Perth Amboy | ≈ 5 µg/m³ |
| Plainfield | ≈ 5 µg/m³ |
| Parsippany | ≈ 5 µg/m³ |
| Bloomfield | ≈ 7 µg/m³ |
| East Brunswick | ≈ 7 µg/m³ |
| West Orange | ≈ 5 µg/m³ |
| Sayreville | ≈ 5 µg/m³ |
| Hackensack | ≈ 7 µg/m³ |
| Bridgewater | ≈ 4 µg/m³ |
| North Brunswick | ≈ 6 µg/m³ |
| Sicklerville | ≈ 5 µg/m³ |
| Sayreville Junction | ≈ 5 µg/m³ |
| Kearny | ≈ 7 µg/m³ |
| Mount Laurel | ≈ 7 µg/m³ |
| Marlboro | ≈ 6 µg/m³ |
| Teaneck | ≈ 7 µg/m³ |
| Montclair | ≈ 5 µg/m³ |
| Hillsborough | ≈ 5 µg/m³ |
| Sewell | ≈ 6 µg/m³ |
| Belleville | ≈ 7 µg/m³ |
| Orange | ≈ 5 µg/m³ |
| Fair Lawn | ≈ 7 µg/m³ |
Bad-air episodes in New Jersey
- Northern United States and Canada, July 202614 to 21 July 2026, 8 days327 cities548 µg/m³peak, Superior
- North-eastern United States, June and July 202630 June to 2 July 2026, 3 days38 cities32 µg/m³peak, Westerville
- North-eastern United States and Canada, 14 to 19 February 20266 days108 cities54 µg/m³peak, Lancaster
- North-eastern United States, January 202618 January 2026, 1 day16 cities37 µg/m³peak, New Holland
- North-eastern United States and Canada around Nepean, 6 January 20261 day16 cities34 µg/m³peak, Camden
- Pennsylvania and New Jersey, United States, November 202521 November 2025, 1 day14 cities42 µg/m³peak, York
Times when many cities around here had PM2.5 at twice their usual or more on the same days.
Use this board
SmogRank, most polluted cities in New Jersey, United States, PM2.5, last 30 days to 6 Oct 2026, 22:00 UTC, smogrank.com/us/region/new-jersey?w=30d.
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Updated 2026-10-06 22:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.