Prince George's, Maryland Air Quality
Prince George's 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 | 44 | 67 | 192 | 253 | 101 | 11 | Ozone |
| 2022 | 39 | 58 | 101 | 313 | 51 | 1 | Ozone |
| 2021 | 41 | 64 | 129 | 287 | 73 | 5 | Ozone |
| 2020 | 39 | 55 | 105 | 314 | 51 | 1 | Ozone |
| 2019 | 45 | 64 | 122 | 234 | 125 | 6 | Ozone |
| 2018 | 42 | 71 | 166 | 248 | 109 | 8 | Ozone |
| 2017 | 45 | 64 | 133 | 240 | 119 | 6 | Ozone |
| 2016 | 48 | 74 | 129 | 199 | 158 | 9 | PM2.5 |
| 2015 | 55 | 75 | 156 | 128 | 230 | 7 | PM2.5 |
| 2014 | 52 | 71 | 119 | 160 | 201 | 4 | PM2.5 |
What This Means for Prince George's County Residents
Prince George's, Maryland has received an Air Quality Grade of B (74/100) based on a decade of EPA monitoring data. The current median AQI of 44 falls in the "Good" range.
Encouragingly, air quality here has been improving, with the median AQI dropping by 8 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 5 unhealthy air quality days per year — days when sensitive groups (children, elderly, those with respiratory conditions) should limit outdoor activity.