Stockton, Alabama Air Quality
Stockton has a median AQI of 42, earning an air quality grade of A- — excellent air quality that ranks better than 44% of US cities. Air quality has remained relatively stable over the past decade. Particulate matter (PM2.5) is the primary concern, often linked to vehicle traffic, industrial activity, and wildfire smoke. In 2025, Stockton recorded 174 good air quality days (72% of monitored days).
Population: 356 • County: Baldwin
Current AQI
Quick Facts
| Current AQI | 42 — Good |
| Air Quality Grade | A- |
| Median AQI (2025) | 42 |
| vs. U.S. Cities | Better than 44% |
| Primary Pollutant | PM2.5 |
| Unhealthy Days/Year | 0 |
| 10-Year Trend | → Stable |
| Data Source | EPA AQS (historical) · AirNow (live) |
Health Recommendation
Air quality is satisfactory, and air pollution poses little or no risk.
It's a great day to be active outside!
5-Day AQI Forecast
Last 90 Days
Current Pollutant Levels
Real-time data from EPA AirNow
Local Air Quality Context
Air quality data for Stockton is sourced from the Chickasaw monitoring area, located approximately 21 miles from city center. This EPA-certified station continuously tracks particulate matter (PM2.5), the primary driver of air quality alerts in this area.
Stockton has relatively consistent air quality throughout the year without a strong seasonal peak. Air quality is primarily influenced by local traffic, industrial activity, and regional weather patterns rather than a single seasonal driver.
AQI Trend (10 Years)
Air Quality Days by Year
Stockton Median AQI by Year
Annual EPA air quality data for Stockton — median AQI, day-category breakdown, and primary pollutant per year.
| Year | Median AQI | Good Days | Unhealthy Days | Max AQI | Primary Pollutant |
|---|---|---|---|---|---|
| 2025 | 42 | 174 | — | 87 | PM2.5 |
| 2024 | 40 | 278 | — | 90 | PM2.5 |
| 2023 | 43 | 236 | — | 90 | PM2.5 |
| 2022 | 39 | 237 | — | 97 | Ozone |
| 2021 | 37 | 248 | — | 63 | Ozone |
| 2020 | 38 | 223 | — | 74 | Ozone |
| 2019 | 40 | 221 | — | 80 | Ozone |
| 2018 | 37 | 232 | — | 97 | Ozone |
| 2017 | 39 | 224 | 1 | 108 | Ozone |
| 2016 | 40 | 233 | — | 87 | Ozone |
Source: EPA Air Quality System (AQS) annual summaries. "Unhealthy Days" includes Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, and Hazardous categories.
2025 Air Quality Summary
Primary Pollutant Days (2025)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About Stockton Air Quality
What is the air quality in Stockton today?
The current AQI in Stockton is 42, rated "Good". Air quality is good — outdoor activity is safe for everyone today. Air quality is satisfactory, and air pollution poses little or no risk.
Is air quality in Stockton getting better or worse?
Air quality in Stockton has been stable. The median AQI has risen 2 points (from 40 in 2016 to 42 in 2025).
What is the most common air pollutant in Stockton?
PM2.5 is the primary air pollutant in Stockton, responsible for 150 days (62% of monitored days) in 2025. Particulate matter originates from vehicle exhaust, wildfires, construction, and industrial activity.
How many unhealthy air days does Stockton have per year?
In 2025, Stockton recorded 72% good air quality days (174 days) out of 241 monitored days. There were 0 Unhealthy for Sensitive Groups days and 0 Unhealthy days (AQI above 100). The highest single-day AQI recorded was 87.
What air quality grade does Stockton receive?
Stockton receives an air quality grade of A-, placing it better than 44% of US cities. This is based on a median AQI of 42 in 2025, with 174 good air quality days. The EPA monitors air quality in this area continuously using certified monitoring stations.
Air Quality Grade
Better than 44% of US cities
Nearby Cities
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National Rankings
See how Stockton compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Stockton
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