Atlantic City Median AQI 2025: Historical Air Quality Data
Explore 2025 air quality data for Atlantic City, including the median AQI, seasonal patterns, pollution trends, and how air quality changed over the year.
Current Air Quality
Air quality is satisfactory, and air pollution poses little or no risk.
Atlantic City Air Quality in 2025
Historical air quality data for Atlantic City in 2025 shows how pollution levels have changed over time. Understanding yearly trends helps identify seasonal patterns, the impact of local policies, and long-term air quality improvements or concerns in your area. Check current conditions below for today's AQI reading.
View Current Atlantic City Air Quality →Atlantic City 2025 Air Quality Snapshot
Across 2025, Atlantic City's median AQI was around 53 (Moderate), based on current readings and seasonal patterns for the Atlantic City-Hammonton reporting area. That means a typical day fell near AQI 53, with the dominant pollutant being ground-level ozone (O3), which is common for the Mid-Atlantic region.
How Atlantic City Air Quality Changed by Season in 2025
Spring (Mar–May): Usually Atlantic City's cleanest stretch, with AQI near 35. Mild temperatures and better atmospheric mixing keep both ozone and particulates low.
Summer (Jun–Aug): AQI climbs toward 77 as heat and sunlight drive ozone formation to its yearly peak. Afternoons are the worst time to be outside.
Fall (Sep–Nov): Air quality generally improves as temperatures drop, though early fall can still carry wildfire smoke in the Mid-Atlantic region.
Winter (Dec–Feb): AQI near 55. Cold-air temperature inversions can trap PM2.5 from heating and vehicles close to the ground, especially on still mornings.
Is It Safe to Exercise Outside in Atlantic City?
With Atlantic City's AQI at 49 (Good), outdoor exercise is generally safe for most people. Conditions are good for running, cycling, and outdoor sports at any time of day.
See our running & AQI guide and cycling & AQI guide for activity-specific thresholds.
What's Causing Atlantic City's Air Pollution?
In Atlantic City, the leading pollutant is ground-level ozone (O3). As part of the Mid-Atlantic region, the main drivers of air pollution here are:
- •Heavy commuter traffic along the I-95 corridor
- •Regional ozone and particulate transport from upwind states
- •Industrial activity and power generation
- •Urban heat-island effects that amplify summer ozone
Dig deeper: Atlantic City PM2.5 levels · Atlantic City ozone levels
Air Purifier & Monitor Buying Guides
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PM2.5 Levels
Fine particulate matter data →
Ozone Levels
Ground-level ozone data →
Seasonal Guides
Air quality by season →
Health Effects
Learn about air pollution impacts →
Frequently Asked Questions About Atlantic City Air Quality
What is the current air quality in Atlantic City?
The current Air Quality Index (AQI) in Atlantic City, NJ is 49, which is considered good.
Is it safe to exercise outdoors in Atlantic City?
Yes, with an AQI of 49, outdoor exercise is safe for everyone in Atlantic City.
When is the best time of year to visit Atlantic City for good air quality?
Spring and early fall typically offer the best air quality in Atlantic City. Summer months may have elevated ozone levels, while winter can see higher PM2.5 from temperature inversions.
What causes air pollution in Atlantic City?
Air pollution in Atlantic City can come from vehicle emissions, industrial activity, construction, wildfires, and weather patterns. Local geography and seasonal factors also play a significant role.
Explore More Air Quality Data
Reduce Indoor Ozone in Atlantic City
Today's main pollutant in Atlantic City is ground-level ozone (AQI 49). 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.
Compare activated-carbon purifiers (for gases & ozone):
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