Cobb, Georgia Air Quality
Cobb County, Georgia (GA)
↓ Improvingover 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). This area has seen measurable air quality improvement over the decade.
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 | 43 | 65 | 125 | 215 | 105 | 3 | Ozone |
| 2022 | 40 | 57 | 105 | 231 | 53 | 1 | Ozone |
| 2021 | 41 | 57 | 80 | 218 | 67 | 0 | Ozone |
| 2020 | 36 | 54 | 91 | 243 | 42 | 0 | Ozone |
| 2019 | 44 | 61 | 119 | 191 | 90 | 1 | Ozone |
| 2018 | 41 | 61 | 100 | 213 | 73 | 0 | Ozone |
| 2017 | 43 | 58 | 97 | 211 | 73 | 0 | Ozone |
| 2016 | 50 | 67 | 200 | 177 | 170 | 4 | PM2.5 |
| 2015 | 50 | 62 | 112 | 182 | 176 | 1 | PM2.5 |
| 2014 | 52 | 65 | 119 | 136 | 169 | 2 | PM2.5 |
What This Means for Cobb County Residents
Cobb, Georgia has received an Air Quality Grade of B (75/100) based on a decade of EPA monitoring data. The current median AQI of 43 falls in the "Good" range.
Encouragingly, air quality here has been improving, with the median AQI dropping by 9 points over the monitoring period. This trend suggests continued investment in emission controls and cleaner energy.
The primary pollutant affecting this area is Ground-Level Ozone. Over the past 5 years, this area has averaged 1 unhealthy air quality days per year — days when sensitive groups (children, elderly, those with respiratory conditions) should limit outdoor activity.