Worst air pollution Ballston - Arlington, today and tomorrow
Today (16 July): Air quality in Ballston is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 48.6/100).
Tomorrow (17 July 2026): Air quality in Ballston is medium. All pollutants stay as today. Pollution peaks around 8:00 AM (O3: 51.8/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Air quality at Ballston, a mixed-use urban village along the Metro's Orange Line, generally follows the pattern seen across Arlington, shaped by the same local and regional factors. As with most sublevel sites, the broader city trend is the best guide to typical conditions here.
Today - 16 July | Pollution peaks at 09:00
AQI:
Medium
48.6/100
PM2.5 (fine particles):
Good
15.1/100
PM10 (coarse particles):
Good
13.4/100
NO2 (nitrogen dioxide):
Good
10.9/100
O3 (ozone):
Medium
48.6/100
SO2 (sulfur dioxide):
Good
2.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.4/100
PM1 (ultrafine particles):
Good
10.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 08:00
AQI:
Medium
51.8/100
PM2.5 (fine particles):
Good
15.1/100
PM10 (coarse particles):
Good
9.2/100
NO2 (nitrogen dioxide):
Good
11.5/100
O3 (ozone):
Medium
51.8/100
SO2 (sulfur dioxide):
Good
1.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.8/100
PM1 (ultrafine particles):
Good
9.9/100
Other Landmarks in Arlington
Frequently Asked Questions
Is air quality bad in Ballston right now?
On 16 July 2026, overall air quality in Ballston is medium. AQI is the main air quality indicator at 48.6/100. Pollution peaks around 9:00 AM (O3: 48.6/100).
Will air quality be worse tomorrow in Ballston?
On 17 July 2026, air quality conditions in Ballston will be similar to today, with AQI forecast at medium at 51.8/100. Pollution peaks around 8:00 AM (O3: 51.8/100).
When is air pollution at its worst in Ballston?
Air quality at Ballston shifts across the year — the cleanest stretch of the year usually comes in winter, whereas the hottest, most humid summer weeks bring the year's highest ozone readings. Suburban and rural areas generally see less of the persistent traffic-driven pollution that affects the urban core.
Are air quality levels in Ballston based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Want to see air quality forecasts for other cities in United States?
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app