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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 | Essex | 36 |
| 2 | Emmitsburg | 34 |
| 3 | Brunswick | 33 |
| 4 | Hagerstown | 32 |
| 5 | Thurmont | 32 |
| 6 | Keedysville | 31 |
| 7 | West Laurel | 30 |
| 8 | Princess Anne | 28 |
| 9 | Ballenger Creek | 27 |
| 10 | Frederick | 27 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
192 Contributors
See all
LIVE AQI CITY RANKING
Real-time Maryland
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Brandywine | 3 |
| 2 | Beltsville | 4 |
| 3 | Gaithersburg | 5 |
| 4 | Glenn Dale | 5 |
| 5 | Hyattsville | 5 |
| 6 | Parole | 6 |
| 7 | Towson | 6 |
| 8 | Westminster | 7 |
| 9 | Centreville | 8 |
| 10 | Columbia | 8 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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Unhealthy for sensitive groups
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The latest air quality news and resources.
Maryland air quality data attribution
192Contributors
- 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
182 Anonymous contributors182 stations
182 Anonymous Contributors
Which is the most polluted city in Maryland?
- Bowling Green 40
- Cresaptown 40
- Cumberland 40
- Hancock 40
- La Vale 40
- Potomac Park 40
- Lonaconing 39
- Westernport 39
- Mountain Lake Park 38
- Oakland 38
- Essex 36
- Saint James 36
- Williamsport 36
- Wilson-Conococheague 36
- Boonsboro 35
- Fountainhead-Orchard Hills 35
- Halfway 35
- Maugansville 35
- Myersville 35
- Robinwood 35
- Braddock Heights 34
- Cavetown 34
- Emmitsburg 34
- Highfield-Cascade 34
- Jefferson 34
- Paramount-Long Meadow 34
- Smithsburg 34
- Brunswick 33
- Clover Hill 32
- Hagerstown 32
- Point of Rocks 32
- Thurmont 32
- Adamstown 31
- Chillum 31
- Keedysville 31
- Taneytown 31
- Walkersville 31
- Woodsboro 31
- Buckeystown 30
- West Laurel 30
- Bartonsville 29
- Spring Ridge 29
- Princess Anne 28
- Ballenger Creek 27
- Frederick 27
- Overlea 27
- Potomac 27
- North Potomac 26
- Pocomoke City 26
- Colmar Manor 25
- Green Valley 25
- Hanover 25
- Linganore 25
- Millington 25
- New Windsor 25
- Poolesville 25
- Manchester 24
- North Laurel 24
- Pikesville 24
- Clarksburg 23
- Derwood 23
- Edgewood 23
- Germantown 23
- Hampstead 23
- Owings Mills 23
- Sykesville 23
- Darnestown 22
- Eldersburg 22
- Montgomery Village 22
- Travilah 22
- Cabin John 21
- Colesville 21
- Garrison 21
- Highland 21
- Hunt Valley 21
- Jarrettsville 21
- Leisure World 21
- Olney 21
- Randallstown 21
- Redland 21
- Rossmoor 21
- Urbana 21
- Ashton-Sandy Spring 20
- Aspen Hill 20
- Bel Air 20
- Bel Air North 20
- Brookmont 20
- Burtonsville 20
- Calverton 20
- Cambridge 20
- Chevy Chase Village 20
- Cloverly 20
- Ellicott City 20
- Fairland 20
- Fairmount Heights 20
- Fallston 20
- Forest Glen 20
- Forest Heights 20
- Four Corners 20
- Friendship Village 20
- Fulton 20
- Garrett Park 20
- Glenmont 20
- Hampton 20
- Hillandale 20
- Ilchester 20
- Kemp Mill 20
- Layhill 20
- Lochearn 20
- Lutherville 20
- Lutherville-Timonium 20
- Mays Chapel 20
- North Bel Air 20
- North Kensington 20
- Queen Anne 20
- Rising Sun 20
- Scaggsville 20
- Somerset 20
- South Bel Air 20
- South Kensington 20
- Spencerville 20
- Timonium 20
- University Park 20
- White Oak 20
- Woodlawn 20
- Adelphi 19
- Arbutus 19
- Bel Air South 19
- Berwyn Heights 19
- Brentwood 19
- Carney 19
- Churchville 19
- Clinton 19
- Cottage City 19
- Edmonston 19
- Elkridge 19
- Frostburg 19
- Jessup 19
- Kingsville 19
- Langley Park 19
- Laurel 19
- Maryland City 19
- Mount Rainier 19
- Perry Hall 19
- Pleasant Hills 19
- Seat Pleasant 19
- Severn 19
- Silver Spring 19
- South Laurel 19
- Accokeek 18
- Andrews AFB 18
- Baltimore Highlands 18
- Bladensburg 18
- Bryans Road 18
- Camp Springs 18
- Charlestown 18
- Charlotte Hall 18
- Coral Hills 18
- District Heights 18
- East Riverdale 18
- Elkton 18
- Fairwood 18
- Forestville 18
- Fort George G Mead Junction 18
- Fort Meade 18
- Fort Washington 18
- Friendly 18
- Glassmanor 18
- Glenarden 18
- Goddard 18
- Havre de Grace 18
- Hillcrest Heights 18
- Indian Head 18
- Joppatowne 18
- Kettering 18
- Lake Arbor 18
- Landover 18
- Landover Hills 18
- Lanham 18
- Lanham-Seabrook 18
- Lansdowne 18
- Linthicum 18
- Marlboro Meadows 18
- Marlow Heights 18
- Mellwood 18
- Morningside 18
- Mount Airy 18
- National Harbor 18
- New Carrollton 18
- North East 18
- Oxon Hill-Glassmanor 18
- Parkville 18
- Peppermill Village 18
- Perryville 18
- Potomac Heights 18
- Pumphrey 18
- Reisterstown 18
- Riverside 18
- Rosedale 18
- Rossville 18
- Seabrook 18
- Silver Hill 18
- Springdale 18
- Suitland 18
- Suitland-Silver Hill 18
- Summerfield 18
- Temple Hills 18
- Walker Mill 18
- West Elkridge 18
- White Marsh 18
- Woodmore 18
- Aberdeen 17
- Aberdeen Proving Ground 17
- Arden on the Severn 17
- Arnold 17
- Baden 17
- Baltimore 17
- Bennsville 17
- Bowie 17
- Bowleys Quarters 17
- Brock Hall 17
- Brooklyn Park 17
- California 17
- Cape Saint Claire 17
- Cobb Island 17
- Crofton 17
- Croom 17
- Crownsville 17
- Damascus 17
- Davidsonville 17
- Deale 17
- Dunkirk 17
- Dunkirk Town Center 17
- Edgemere 17
- Edgewater 17
- Ferndale 17
- Gambrills 17
- Golden Beach 17
- Greater Upper Marlboro 17
- Greenbelt 17
- Herald Harbor 17
- Hillsmere Shores 17
- Hughesville 17
- Huntingtown 17
- Huntingtown Town Center 17
- Lake Shore 17
- Londontowne 17
- Long Beach 17
- Marlboro Village 17
- Marlton 17
- Mayo 17
- Middle River 17
- Milford Mill 17
- Mitchellville 17
- Naval Academy 17
- North Beach 17
- Odenton 17
- Owings 17
- Oxon Hill 17
- Pasadena 17
- Perryman 17
- Prince Frederick 17
- Queenland 17
- Riva 17
- Riviera Beach 17
- Rosaryville 17
- Saint Charles 17
- Selby-on-the-Bay 17
- Severna Park 17
- Shady Side 17
- South Gate 17
- St. Charles 17
- Upper Marlboro 17
- Waldorf 17
- Westphalia 17
- Wheaton 17
- Algonquin 16
- Catonsville 16
- Chesapeake Ranch Estates 16
- Cheverly 16
- Cockeysville 16
- College Park 16
- Drum Point 16
- Dundalk 16
- Easton 16
- Grasonville 16
- Kingstown 16
- Rock Hall 16
- Saint Michaels 16
- Solomons 16
- Stevensville 16
- Trappe 16
- Crisfield 15
- Denton 15
- Glen Burnie 15
- Greensboro 15
- Largo 15
- Lothian 15
- North Bethesda 15
- Ridgely 15
- Saint Mary 15
- Bethesda 14
- Capitol Heights 14
- Chestertown 14
- Chevy Chase 14
- Federalsburg 14
- Green Haven 14
- Hurlock 14
- Kensington 14
- Annapolis 13
- Chesapeake Beach 13
- Hebron 13
- Lexington Park 13
- Lusby 13
- Mechanicsville 13
- Rockville 13
- Chester 12
- Fruitland 12
- Leonardtown 12
- Riverdale Park 12
- Salisbury 12
- Snow Hill 12
- Takoma Park 12
- Berlin 11
- La Plata 11
- Ocean City 11
- Ocean Pines 11
- Pittsville 11
- Savage 11
- West Ocean City 11
- Centreville 8
- Columbia 8
- Westminster 7
- Parole 6
- Towson 6
- Gaithersburg 5
- Glenn Dale 5
- Hyattsville 5
- Beltsville 4
- Brandywine 3
AQI US, Metric