Clay, Alabama Air Quality
Clay County, Alabama (AL)
↓ 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 | 41 | 61 | 85 | 221 | 106 | 0 | PM2.5 |
| 2022 | 34 | 56 | 68 | 91 | 24 | 0 | PM2.5 |
| 2021 | 36 | 55 | 70 | 87 | 23 | 0 | PM2.5 |
| 2020 | 34 | 56 | 88 | 83 | 22 | 0 | PM2.5 |
| 2019 | 41 | 56 | 71 | 75 | 32 | 0 | PM2.5 |
| 2018 | 36 | 54 | 68 | 86 | 24 | 0 | PM2.5 |
| 2017 | 40 | 57 | 69 | 76 | 42 | 0 | PM2.5 |
| 2016 | 41 | 54 | 61 | 83 | 33 | 0 | PM2.5 |
| 2015 | 43 | 56 | 92 | 73 | 39 | 0 | PM2.5 |
| 2014 | 48 | 59 | 73 | 64 | 50 | 0 | PM2.5 |
What This Means for Clay County Residents
Clay, Alabama has received an Air Quality Grade of B (74/100) based on a decade of EPA monitoring data. The current median AQI of 41 falls in the "Good" range.
Encouragingly, air quality here has been improving, with the median AQI dropping by 7 points over the monitoring period. This trend suggests continued investment in emission controls and cleaner energy.
The primary pollutant affecting this area is Fine Particulate Matter (PM2.5). Over the past 5 years, this area has averaged 0 unhealthy air quality days per year — days when sensitive groups (children, elderly, those with respiratory conditions) should limit outdoor activity.