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Air quality in Maryland
Air quality index (AQI) and PM2.5 air pollution in Maryland
LIVE AQI CITY RANKING
Real-time Maryland
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Potomac | 55 |
| 2 | Forest Heights | 47 |
| 3 | West Laurel | 45 |
| 4 | Colmar Manor | 44 |
| 5 | Thurmont | 43 |
| 6 | Fairmount Heights | 42 |
| 7 | Seat Pleasant | 42 |
| 8 | Urbana | 41 |
| 9 | Frostburg | 40 |
| 10 | Middletown | 40 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
191 Contributors
See all
LIVE AQI CITY RANKING
Real-time Maryland
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Gaithersburg | 0 |
| 2 | Hyattsville | 6 |
| 3 | La Plata | 7 |
| 4 | Parole | 7 |
| 5 | Riverdale Park | 8 |
| 6 | Colesville | 9 |
| 7 | Savage | 11 |
| 8 | Beltsville | 13 |
| 9 | Towson | 13 |
| 10 | Chester | 14 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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The latest air quality news and resources.
Maryland air quality data attribution
191Contributors
- Maryland Department of the Environment
22 stations
- USA National Park Service
1 station
2 Government Contributors
Non-profit organization Contributor
- Ammar Rai
1 station
- Luis de Silva
1 station
- hillmead park
1 station
- TJ
1 station
- TFrey
1 station
- enilso
1 station
- harveytig
1 station
7 Individual Contributors
181 Anonymous contributors181 stations
181 Anonymous Contributors
Which is the most polluted city in Maryland?
- Potomac 55
- Forest Heights 47
- West Laurel 45
- Bowling Green 44
- Colmar Manor 44
- Cresaptown 44
- Cumberland 44
- La Vale 44
- Lonaconing 44
- Mountain Lake Park 44
- Oakland 44
- Potomac Park 44
- Westernport 44
- Thurmont 43
- Fairmount Heights 42
- Hancock 42
- Seat Pleasant 42
- Urbana 41
- Frostburg 40
- Halfway 40
- Middletown 40
- Saint James 40
- Williamsport 40
- Wilson-Conococheague 40
- Boonsboro 39
- Braddock Heights 39
- Cavetown 39
- Emmitsburg 39
- Fountainhead-Orchard Hills 39
- Frederick 39
- Highfield-Cascade 39
- Jefferson 39
- Keedysville 39
- Landover 39
- Maugansville 39
- Myersville 39
- Paramount-Long Meadow 39
- Point of Rocks 39
- Robinwood 39
- Smithsburg 39
- Adamstown 38
- Ballenger Creek 38
- Buckeystown 38
- Clover Hill 38
- Poolesville 38
- Taneytown 38
- Walkersville 38
- Woodsboro 38
- Bartonsville 37
- Capitol Heights 37
- Charlotte Hall 37
- Chevy Chase 37
- Clarksburg 37
- Green Valley 37
- Hanover 37
- Linganore 37
- Manchester 37
- New Windsor 37
- Oxon Hill 37
- Spring Ridge 37
- Sykesville 37
- Brunswick 36
- Darnestown 36
- Eldersburg 36
- Garrison 36
- Germantown 36
- Hampstead 36
- Highland 36
- Montgomery Village 36
- Pikesville 36
- Randallstown 36
- Redland 36
- Travilah 36
- Adelphi 35
- Arbutus 35
- Ashton-Sandy Spring 35
- Aspen Hill 35
- Brookmont 35
- Burtonsville 35
- Cabin John 35
- Calverton 35
- Chevy Chase Village 35
- Cloverly 35
- Ellicott City 35
- Fairland 35
- Forest Glen 35
- Four Corners 35
- Friendship Village 35
- Fulton 35
- Garrett Park 35
- Glenmont 35
- Hampton 35
- Hillandale 35
- Hunt Valley 35
- Ilchester 35
- Kemp Mill 35
- Langley Park 35
- Largo 35
- Laurel 35
- Layhill 35
- Leisure World 35
- Lochearn 35
- Lutherville 35
- Lutherville-Timonium 35
- Mays Chapel 35
- Mechanicsville 35
- North Kensington 35
- Olney 35
- Rossmoor 35
- Saint Mary 35
- Scaggsville 35
- Silver Spring 35
- Somerset 35
- South Kensington 35
- Spencerville 35
- Timonium 35
- University Park 35
- White Oak 35
- Woodlawn 35
- Berwyn Heights 34
- Bladensburg 34
- Brentwood 34
- California 34
- Cottage City 34
- East Riverdale 34
- Edmonston 34
- Elkridge 34
- Fort George G Mead Junction 34
- Glassmanor 34
- Indian Head 34
- Jarrettsville 34
- Jessup 34
- Landover Hills 34
- Lansdowne 34
- Marlboro Meadows 34
- Maryland City 34
- Mount Rainier 34
- National Harbor 34
- Potomac Heights 34
- South Laurel 34
- West Elkridge 34
- Accokeek 33
- Baltimore Highlands 33
- Bryans Road 33
- Camp Springs 33
- Carney 33
- Cheverly 33
- Coral Hills 33
- District Heights 33
- Ferndale 33
- Forestville 33
- Fort Meade 33
- Fort Washington 33
- Friendly 33
- Glenarden 33
- Goddard 33
- Hillcrest Heights 33
- Lanham 33
- Lanham-Seabrook 33
- Linthicum 33
- Marlow Heights 33
- Morningside 33
- New Carrollton 33
- Odenton 33
- Oxon Hill-Glassmanor 33
- Peppermill Village 33
- Pumphrey 33
- Seabrook 33
- Silver Hill 33
- Springdale 33
- Suitland 33
- Suitland-Silver Hill 33
- Summerfield 33
- Temple Hills 33
- Walker Mill 33
- Andrews AFB 32
- Arden on the Severn 32
- Bel Air North 32
- Bennsville 32
- Bowie 32
- Brock Hall 32
- Brooklyn Park 32
- Catonsville 32
- Crofton 32
- Crownsville 32
- Fairwood 32
- Fallston 32
- Gambrills 32
- Greater Upper Marlboro 32
- Herald Harbor 32
- Kettering 32
- Kingsville 32
- Lake Arbor 32
- Marlboro Village 32
- Marlton 32
- Mellwood 32
- Mitchellville 32
- North Bel Air 32
- North Potomac 32
- Owings Mills 32
- Pasadena 32
- Perry Hall 32
- Pleasant Hills 32
- Queenland 32
- Riviera Beach 32
- Rosaryville 32
- Rosedale 32
- Rossville 32
- Severna Park 32
- South Gate 32
- Upper Marlboro 32
- Westphalia 32
- Wheaton 32
- Woodmore 32
- Arnold 31
- Baden 31
- Baltimore 31
- Bel Air 31
- Bel Air South 31
- Cambridge 31
- College Park 31
- Croom 31
- Davidsonville 31
- Deale 31
- Dunkirk 31
- Dunkirk Town Center 31
- Edgewater 31
- Essex 31
- Greenbelt 31
- Hagerstown 31
- Joppatowne 31
- Lake Shore 31
- Londontowne 31
- Middle River 31
- Riva 31
- Saint Charles 31
- Selby-on-the-Bay 31
- South Bel Air 31
- St. Charles 31
- Waldorf 31
- White Marsh 31
- Bowleys Quarters 30
- Cobb Island 30
- Edgemere 30
- Glen Burnie 30
- Golden Beach 30
- Hillsmere Shores 30
- Huntingtown 30
- Huntingtown Town Center 30
- Leonardtown 30
- Lusby 30
- Mayo 30
- Naval Academy 30
- North Beach 30
- Owings 30
- Prince Frederick 30
- Queen Anne 30
- Severn 30
- Shady Side 30
- Annapolis 29
- Cape Saint Claire 29
- Churchville 29
- Lexington Park 29
- Lothian 29
- Riverside 29
- Chesapeake Beach 28
- Cockeysville 28
- Kensington 28
- Milford Mill 28
- Parkville 28
- Reisterstown 28
- Aberdeen 27
- Hughesville 27
- Long Beach 27
- Perryman 27
- Rising Sun 27
- Rock Hall 27
- Solomons 27
- Stevensville 27
- Takoma Park 27
- Chesapeake Ranch Estates 26
- Damascus 26
- Grasonville 26
- Havre de Grace 26
- Mount Airy 26
- Perryville 26
- Rockville 26
- Saint Michaels 26
- Aberdeen Proving Ground 25
- Drum Point 25
- Elkton 25
- Millington 25
- Easton 24
- North Laurel 24
- Overlea 24
- Brandywine 23
- Charlestown 23
- Denton 23
- Derwood 23
- Dundalk 23
- Chestertown 22
- Green Haven 22
- North East 22
- Princess Anne 22
- Algonquin 21
- Clinton 20
- Kingstown 20
- Trappe 20
- Westminster 20
- Edgewood 19
- Pocomoke City 19
- Bethesda 18
- Centreville 18
- Federalsburg 18
- Greensboro 18
- Hurlock 18
- Ridgely 18
- Crisfield 17
- Hebron 17
- Fruitland 16
- Glenn Dale 16
- Salisbury 16
- Chester 14
- Columbia 14
- North Bethesda 14
- Beltsville 13
- Chillum 13
- Pittsville 13
- Towson 13
- Snow Hill 12
- Savage 11
- Colesville 9
- Riverdale Park 8
- Berlin 7
- La Plata 7
- Parole 7
- Hyattsville 6
- Ocean City 6
- Ocean Pines 6
- West Ocean City 6
- Gaithersburg 0
AQI US, Metric