Hunterdon, New Jersey Air Quality
Hunterdon County, New Jersey (NJ)
→ Stableover 10 years
10-Year AQI Trend
The solid line shows the median AQI each year. The dashed line shows the 90th percentile (worst 10% of days).
Air Quality Day Breakdown
Number of days per year in each EPA AQI category. Green = Good (AQI 0-50), Yellow = Moderate (51-100), Orange = Unhealthy for Sensitive Groups (101-150), Red = Unhealthy or worse (151+).
Year-by-Year Data
| Year | Median AQI | 90th Pct | Max AQI | Good Days | Moderate | Unhealthy+ | Pollutant |
|---|---|---|---|---|---|---|---|
| 2023 | 44 | 64 | 262 | 233 | 121 | 10 | Ozone |
| 2022 | 42 | 60 | 93 | 263 | 101 | 0 | Ozone |
| 2021 | 43 | 61 | 97 | 249 | 115 | 0 | PM2.5 |
| 2020 | 41 | 57 | 87 | 265 | 99 | 0 | PM2.5 |
| 2019 | 43 | 62 | 108 | 256 | 105 | 1 | PM2.5 |
| 2018 | 43 | 65 | 179 | 236 | 111 | 5 | PM2.5 |
| 2017 | 44 | 63 | 122 | 237 | 123 | 4 | PM2.5 |
| 2016 | 43 | 67 | 156 | 234 | 114 | 7 | Ozone |
| 2015 | 39 | 61 | 115 | 280 | 79 | 4 | Ozone |
| 2014 | 42 | 64 | 105 | 245 | 116 | 2 | Ozone |
What This Means for Hunterdon County Residents
Hunterdon, New Jersey has received an Air Quality Grade of C (63/100) based on a decade of monitoring data from the EPA's air quality monitoring program. The current median AQI of 44 falls in the "Good" range.
The primary pollutant affecting this area is Ground-Level Ozone. Over the past 5 years, this area has averaged 2 unhealthy air quality days per year — days when sensitive groups (children, elderly, those with respiratory conditions) should limit outdoor activity. The American Lung Association's State of the Air report provides additional context on long-term health risks from air pollution exposure.
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Frequently Asked Questions
Hunterdon, New Jersey has a current median AQI of 44, which falls in the "Good" range. The area has received an Air Quality Grade of C (63/100) based on 10 years of EPA monitoring data.
Air quality in Hunterdon, New Jersey is stable over the past decade. The median AQI has changed by +2 points from 2014 to 2023.
Hunterdon, New Jersey averages 2 unhealthy air quality days per year over the past 5 years. On these days, sensitive groups including children, the elderly, and those with respiratory conditions should limit outdoor activity.
The primary pollutant affecting Hunterdon, New Jersey is Ground-Level Ozone. This is the dominant contributor to elevated AQI readings in the Hunterdon County area.
Hunterdon, New Jersey averages 2 unhealthy air days per year. This is relatively low, making it a reasonable choice for asthma sufferers. The primary pollutant is Ground-Level Ozone, which is a known asthma trigger.
With a median AQI of 44 (Good), outdoor exercise in Hunterdon, New Jersey is generally safe year-round. Hunterdon, New Jersey averages 2 days per year when athletes should move workouts indoors.