Garrett, Maryland Air Quality
Garrett County, Maryland (MD)
↓ 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 | 40 | 58 | 170 | 297 | 61 | 2 | Ozone |
| 2022 | 38 | 50 | 97 | 330 | 35 | 0 | Ozone |
| 2021 | 39 | 54 | 92 | 312 | 53 | 0 | Ozone |
| 2020 | 37 | 47 | 71 | 345 | 20 | 0 | Ozone |
| 2019 | 39 | 53 | 71 | 311 | 54 | 0 | Ozone |
| 2018 | 39 | 56 | 97 | 298 | 64 | 0 | Ozone |
| 2017 | 43 | 56 | 87 | 285 | 79 | 0 | Ozone |
| 2016 | 42 | 56 | 97 | 301 | 63 | 0 | Ozone |
| 2015 | 43 | 58 | 100 | 261 | 104 | 0 | Ozone |
| 2014 | 44 | 58 | 87 | 264 | 101 | 0 | Ozone |
What This Means for Garrett County Residents
Garrett, Maryland has received an Air Quality Grade of B (71/100) based on a decade of EPA monitoring data. The current median AQI of 40 falls in the "Good" range.
Encouragingly, air quality here has been improving, with the median AQI dropping by 4 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 0 unhealthy air quality days per year — days when sensitive groups (children, elderly, those with respiratory conditions) should limit outdoor activity.