Atlantic City Air Quality in Spring
Across 2019–2025, Atlantic City's spring (March–May) air quality had a median AQI of 38 (Good) over 643 monitored days in the Atlantic City-Hammonton, NJ area. 0.0% of spring days (0 of 643) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 67.8% of days. The cleanest spring on record here was 2024 (median AQI 33, 0 days above 100) and the worst was 2019 (median 43, 0 days above 100, peak AQI 66).
- Good: 85.5%
- Moderate: 14.5%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
Reduce Indoor Ozone in Atlantic City
Today's main pollutant in Atlantic City is ground-level ozone (AQI 31). Important: standard HEPA filters do NOT remove ozone — only a purifier with a substantial activated-carbon bed adsorbs it. The biggest wins are cutting indoor sources (gas appliances, certain "ionizer" purifiers) and ventilating when outdoor ozone is low (early morning). A high-carbon unit helps with the gases and VOCs that linger indoors.
Recommended: Levoit Core 300 — True HEPA + activated carbon · CADR ~141 CFM · rooms up to 219 sq ft
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How is the air in Atlantic City in spring?
Good on a typical day: median AQI 38 across 2019–2025, with 0.0% of spring days above AQI 100. Ground-level ozone is the main driver.
- ✓85.5% of spring days were Good (AQI 0–50), 14.5% Moderate (51–100).
- ✓0 days of 643 reached AQI 101+; the spring peak was 93.
- ✓Cleanest month: March; worst month: April.
Frequently asked questions
What is the air quality like in Atlantic City in spring?▾
Across 2019–2025, the median daily AQI in Atlantic City in spring was 38 (Good). 85.5% of days were Good, 14.5% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 643 monitored days in EPA's Air Quality System.
Is spring a good time for outdoor exercise in Atlantic City?▾
A typical spring day in Atlantic City sits in the Good range (median AQI 38), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of spring days reached AQI 101+ in 2019–2025.
Which pollutant causes Atlantic City's spring air quality problems?▾
Ground-level ozone set the daily AQI on 67.8% of spring days in Atlantic City. The highest spring AQI recorded in 2019–2025 was 93 (Moderate), in 2019.
Atlantic City spring air quality, year by year
Atlantic City spring air quality by year (Atlantic City-Hammonton, NJ, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019worst | 92 | 43 | 0 | 66 | O3 |
| 2020 | 91 | 37 | 0 | 55 | O3 |
| 2021 | 92 | 41 | 0 | 93 | O3 |
| 2022 | 92 | 38 | 0 | 71 | O3 |
| 2023 | 92 | 38 | 0 | 63 | O3 |
| 2024cleanest | 92 | 33 | 0 | 60 | O3 |
| 2025 | 92 | 40 | 0 | 74 | O3 |
What spring air means in Atlantic City
A typical spring day in Atlantic City sits in the Good range (median AQI 38), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of spring days reached AQI 101+ in 2019–2025.
Spring's median AQI of 38 is in line with Atlantic City's whole-year median of 37, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median Spring AQI across every EPA metro area (307,196 metro-days, 2019–2025) is 43, so Atlantic City runs below the national Spring norm; 0.0% of its Spring days topped AQI 100 versus 0.8% nationally (about the same).
Within the season, March is the cleanest month (median AQI 37, 0.0% of days above 100) and April the worst (median 40, 0.0% above 100).
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Atlantic City
The latest EPA AirNow observation puts Atlantic City's AQI at 31 (O3). The figures above are multi-year season statistics, not today's reading.
View current Atlantic City air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Atlantic City-Hammonton, NJ), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.