Air quality in Maryland

Air quality index (AQI) and PM2.5 air pollution in Maryland

Last update at (local time)

LIVE AQI CITY RANKING

Real-time Maryland
Most polluted city ranking

#cityUS AQI
1 Ballenger Creek

61

2 Queen Anne

43

3 Elkton

39

4 Frostburg

35

5 Thurmont

33

6 Urbana

30

7 Frederick

29

8 Middletown

29

9 Charlotte Hall

28

10 Clarksburg

28

(local time)

SEE WORLD AQI RANKING

AIR QUALITY DATA CONTRIBUTORS

207 Stations operated by

196 Contributors

https://cdn.airvisual.net/assets/public-profiles/65434485587f077280f196f5-avatar.pnghttps://cdn.airvisual.net/assets/public-profiles/64d4937e99fc7b5185493838-avatar.pnghttps://cdn.airvisual.net/gov/tiny/metropolitan-wahington-council-of-governments-avatar-Metropolitan-Washington-Council-of-Governments-logo.pnghttps://lh3.googleusercontent.com/a-/AFdZucpTpSgXH_Z_PuN1TTTsLcNixl0edtJiH4KAkCVJfuI=s96-chttps://ui-avatars.com/api/?rounded=true&name=Luis%20de%20Silvahttps://lh3.googleusercontent.com/a/AEdFTp49PaNEUrCVStDh6un5L1wq4EgBjZhGoMjh7mfe=s96-c

Join the movement!

Get a monitor and contributor to air quality data in your city.

BECOME A CONTRIBUTOR
Find out more about contributors and data sources

LIVE AQI CITY RANKING

Real-time Maryland
Cleanest city ranking

#cityUS AQI
1 Beltsville

4

2 Brandywine

4

3 Columbia

6

4 Parole

6

5 Bethesda

10

6 Cambridge

10

7 Hyattsville

11

8 Glenn Dale

12

9 La Plata

12

10 Takoma Park

12

(local time)

SEE WORLD AQI RANKING

#1 Air Quality App

Free iOS and Android air quality app

AirVisual App, Free iOS and Android air quality app
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
rectangle shape clicked to open the map in fullscreen
plus icon clicked to zoom the map in
minus icon clicked to zoom the map out

How to best protect from air pollution?

Reduce your air pollution exposure in Maryland

Maryland air quality data attribution

196Contributors

Which is the most polluted city in Maryland?

Cart
Your cart is empty

Connect With IQAir

Sign up for our newsletter