Norfolk City, Virginia Air Quality
Norfolk City County, Virginia (VA)
↓ 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 | 18 | 47 | 96 | 334 | 30 | 0 | NO2 |
| 2022 | 18 | 41 | 66 | 348 | 13 | 0 | NO2 |
| 2021 | 18 | 42 | 85 | 340 | 22 | 0 | NO2 |
| 2020 | 18 | 36 | 64 | 349 | 16 | 0 | NO2 |
| 2019 | 20 | 47 | 72 | 341 | 23 | 0 | NO2 |
| 2018 | 18 | 41 | 65 | 348 | 17 | 0 | NO2 |
| 2017 | 19 | 46 | 66 | 335 | 28 | 0 | NO2 |
| 2016 | 19 | 43 | 63 | 344 | 18 | 0 | NO2 |
| 2015 | 21 | 47 | 79 | 332 | 33 | 0 | NO2 |
| 2014 | 22 | 52 | 69 | 318 | 47 | 0 | NO2 |
What This Means for Norfolk City County Residents
Norfolk City, Virginia has received an Air Quality Grade of A (81/100) based on a decade of EPA monitoring data. The current median AQI of 18 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 Nitrogen Dioxide. 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.