Worst air pollution Hampden - Baltimore, today and tomorrow

Today (16 July): Air quality in Hampden is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 35.2/100).
Tomorrow (17 July 2026): Air quality in Hampden is fair. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 39.5/100). 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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Baltimore's Hampden air quality reflects the historic working-class neighbourhood, with vehicle traffic on 36th Street and the surrounding dense residential and commercial character contributing local sources. The Jones Falls Expressway generates background vehicle emissions, while the neighbourhood's walkable character and the surrounding residential density maintain moderate Baltimore metropolitan readings and Hampden generally tracks at typical inner North Baltimore neighbourhood levels throughout most of the year.

Today - 16 July | Pollution peaks at 13:00

AQI:

Fair

35.2/100

PM2.5 (fine particles):

Good

12.6/100

PM10 (coarse particles):

Good

8.3/100

NO2 (nitrogen dioxide):

Good

8.3/100

O3 (ozone):

Fair

35.2/100

SO2 (sulfur dioxide):

Good

1.2/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

4.5/100

PM1 (ultrafine particles):

Good

8.7/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 12:00

AQI:

Fair

39.5/100

PM2.5 (fine particles):

Good

15.6/100

PM10 (coarse particles):

Good

9.9/100

NO2 (nitrogen dioxide):

Good

8.0/100

O3 (ozone):

Fair

39.5/100

SO2 (sulfur dioxide):

Good

1.4/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

4.6/100

PM1 (ultrafine particles):

Good

10.0/100

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Frequently Asked Questions

Is air quality bad in Hampden right now?

On 16 July 2026, overall air quality in Hampden is fair. AQI is the main air quality indicator at 35.2/100. Pollution peaks around 1:00 PM (O3: 35.2/100).

Will air quality be worse tomorrow in Hampden?

On 17 July 2026, air quality conditions in Hampden will be similar to today, with AQI forecast at fair at 39.5/100. Pollution peaks around 12:00 PM (O3: 39.5/100).

When is air pollution at its worst in Hampden?

Seasonal changes shape air quality at Hampden much as they do across Baltimore. In short, 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. Dense urban traffic corridors add a persistent background level of pollution that varies less by season than ozone does.

Are air quality levels in Hampden 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.

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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