Worst air pollution The Pentagon - Arlington, today and tomorrow
Today (16 July): Air quality in The Pentagon 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 The Pentagon 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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The Pentagon sits at the Pentagon complex and its surrounding lawns and parking reservation; air quality here tracks closely with the wider Arlington area and the same regional influences that shape it. Checking conditions closer to visit time is still the best way to plan around this specific site.
Today - 16 July | Pollution peaks at 09:00
AQI:
Medium
48.6/100
PM2.5 (fine particles):
Good
14.6/100
PM10 (coarse particles):
Good
13.0/100
NO2 (nitrogen dioxide):
Good
9.1/100
O3 (ozone):
Medium
48.6/100
SO2 (sulfur dioxide):
Good
1.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.4/100
PM1 (ultrafine particles):
Good
10.2/100
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
14.7/100
PM10 (coarse particles):
Good
9.0/100
NO2 (nitrogen dioxide):
Good
9.6/100
O3 (ozone):
Medium
51.8/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.8/100
PM1 (ultrafine particles):
Good
9.6/100
Other Landmarks in Arlington
Frequently Asked Questions
Is air quality bad in The Pentagon right now?
On 16 July 2026, overall air quality in The Pentagon 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 The Pentagon?
On 17 July 2026, air quality conditions in The Pentagon 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 The Pentagon?
Air quality around The Pentagon changes with the seasons — the calmest air of the year usually arrives well after the summer ozone season fades, whereas summer heat waves bring the highest ozone risk, compounded by pollution drifting in from the wider region. Suburban and rural areas generally see less of the persistent traffic-driven pollution that affects the urban core.
Are air quality levels in The Pentagon 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