Air quality in Maryland

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

LAST UPDATE (local time)

LIVE AQI CITY RANKING

Real-time Maryland
Most polluted city ranking

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#cityUS AQI
1 Beltsville

119

2 Lochearn

76

3 Redland

72

4 Kensington

71

5 Baltimore

70

6 Silver Spring

69

7 Catonsville

68

8 Brooklyn Park

67

9 Gaithersburg

65

10 Rockville

65

(local time)

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Air Quality Data contributor(s)

Station(s) operated by

Contributors

3

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LIVE AQI CITY RANKING

Real-time Maryland
Cleanest city ranking

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#cityUS AQI
1 Hyattsville

2

2 Westminster

4

3 Brandywine

7

4 Frederick

10

5 Lansdowne

14

6 Riverdale Park

14

7 Largo

18

8 Pocomoke City

23

9 Princess Anne

26

10 Cambridge

30

(local time)

SEE WORLD AQI RANKING
Good
Moderate
Unhealthy for sensitive groups
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How to best protect from air pollution?

Reduce your air pollution exposure in Maryland

Maryland air quality data attribution

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Which is the most polluted city in Maryland?

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