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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 |  Cambridge | 35 |
| 2 | Essex | 32 |
| 3 | Charlotte Hall | 29 |
| 4 | Clinton | 26 |
| 5 | Green Haven | 25 |
| 6 | Owings Mills | 25 |
| 7 | Queen Anne | 25 |
| 8 | Thurmont | 25 |
| 9 | North Potomac | 24 |
| 10 | Brunswick | 23 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
193 Contributors
See all
LIVE AQI CITY RANKING
Real-time Maryland
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Derwood | 3 |
| 2 | Hanover | 5 |
| 3 | West Laurel | 5 |
| 4 | Millington | 6 |
| 5 | Gaithersburg | 7 |
| 6 | Edgewood | 8 |
| 7 | Overlea | 8 |
| 8 | Bethesda | 9 |
| 9 | Damascus | 9 |
| 10 | Centreville | 10 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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Moderate
Unhealthy for sensitive groups
Unhealthy
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News
The latest air quality news and resources.
Maryland air quality data attribution
193Contributors
- Maryland Department of the Environment
22 stations
Government Contributor
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
184 Anonymous contributors184 stations
184 Anonymous Contributors
Which is the most polluted city in Maryland?
- Adamstown 55
- Ballenger Creek 55
- Bartonsville 55
- Boonsboro 55
- Braddock Heights 55
- Brookmont 55
- Buckeystown 55
- Cabin John 55
- Clover Hill 55
- Darnestown 55
- Germantown 55
- Green Valley 55
- Halfway 55
- Jefferson 55
- Middletown 55
- Montgomery Village 55
- Myersville 55
- Point of Rocks 55
- Poolesville 55
- Saint James 55
- Spring Ridge 55
- Travilah 55
- Williamsport 55
- Accokeek 54
- Adelphi 54
- Andrews AFB 54
- Ashton-Sandy Spring 54
- Aspen Hill 54
- Bennsville 54
- Berwyn Heights 54
- Bladensburg 54
- Brentwood 54
- Bryans Road 54
- Burtonsville 54
- Calverton 54
- Camp Springs 54
- Cavetown 54
- Chevy Chase Village 54
- Cloverly 54
- Columbia 54
- Coral Hills 54
- Cottage City 54
- District Heights 54
- East Riverdale 54
- Edmonston 54
- Eldersburg 54
- Ellicott City 54
- Fairland 54
- Forest Glen 54
- Forestville 54
- Fort Washington 54
- Fountainhead-Orchard Hills 54
- Four Corners 54
- Friendly 54
- Friendship Village 54
- Fulton 54
- Garrett Park 54
- Garrison 54
- Glassmanor 54
- Glenarden 54
- Glenmont 54
- Goddard 54
- Hampstead 54
- Hancock 54
- Highfield-Cascade 54
- Highland 54
- Hillandale 54
- Hillcrest Heights 54
- Ilchester 54
- Indian Head 54
- Kemp Mill 54
- Landover Hills 54
- Langley Park 54
- Lanham 54
- Lanham-Seabrook 54
- Laurel 54
- Layhill 54
- Leisure World 54
- Linganore 54
- Manchester 54
- Marlow Heights 54
- Maryland City 54
- Maugansville 54
- Morningside 54
- Mount Rainier 54
- National Harbor 54
- New Carrollton 54
- New Windsor 54
- North Kensington 54
- Olney 54
- Oxon Hill-Glassmanor 54
- Paramount-Long Meadow 54
- Peppermill Village 54
- Potomac Heights 54
- Randallstown 54
- Redland 54
- Robinwood 54
- Rossmoor 54
- Saint Charles 54
- Scaggsville 54
- Seabrook 54
- Silver Hill 54
- Smithsburg 54
- Somerset 54
- South Kensington 54
- South Laurel 54
- Spencerville 54
- Springdale 54
- St. Charles 54
- Suitland 54
- Suitland-Silver Hill 54
- Summerfield 54
- Sykesville 54
- Taneytown 54
- Temple Hills 54
- Waldorf 54
- Walker Mill 54
- Walkersville 54
- White Oak 54
- Wilson-Conococheague 54
- Woodsboro 54
- Arbutus 53
- Baden 53
- Baltimore Highlands 53
- Bowie 53
- Bowling Green 53
- Brock Hall 53
- Cresaptown 53
- Croom 53
- Cumberland 53
- Elkridge 53
- Fairwood 53
- Fort George G Mead Junction 53
- Fort Meade 53
- Greater Upper Marlboro 53
- Hunt Valley 53
- Jessup 53
- Kettering 53
- La Vale 53
- Lake Arbor 53
- Linthicum 53
- Lochearn 53
- Lonaconing 53
- Lutherville 53
- Lutherville-Timonium 53
- Marlboro Village 53
- Marlton 53
- Mays Chapel 53
- Mellwood 53
- Mitchellville 53
- Mountain Lake Park 53
- Oakland 53
- Odenton 53
- Potomac Park 53
- Pumphrey 53
- Queenland 53
- Rosaryville 53
- Timonium 53
- Upper Marlboro 53
- West Elkridge 53
- Westernport 53
- Westphalia 53
- Woodlawn 53
- Woodmore 53
- Arden on the Severn 52
- Arnold 52
- Brooklyn Park 52
- Carney 52
- Cobb Island 52
- Crofton 52
- Crownsville 52
- Davidsonville 52
- Deale 52
- Dunkirk 52
- Dunkirk Town Center 52
- Edgewater 52
- Fallston 52
- Ferndale 52
- Gambrills 52
- Golden Beach 52
- Hampton 52
- Herald Harbor 52
- Huntingtown 52
- Huntingtown Town Center 52
- Jarrettsville 52
- Lake Shore 52
- Lansdowne 52
- Londontowne 52
- Mayo 52
- North Beach 52
- Owings 52
- Pasadena 52
- Perry Hall 52
- Prince Frederick 52
- Riva 52
- Riviera Beach 52
- Rosedale 52
- Rossville 52
- Selby-on-the-Bay 52
- Severna Park 52
- Shady Side 52
- South Gate 52
- Bel Air North 51
- Cape Saint Claire 51
- Edgemere 51
- Hillsmere Shores 51
- Kingsville 51
- Middle River 51
- Naval Academy 51
- Pleasant Hills 51
- White Marsh 51
- Bowleys Quarters 50
- North Bel Air 50
- Bel Air 49
- Joppatowne 49
- South Bel Air 49
- Bel Air South 48
- Long Beach 45
- Riverside 44
- Churchville 43
- Solomons 43
- Stevensville 43
- Chesapeake Ranch Estates 42
- Drum Point 42
- Perryman 42
- Aberdeen 41
- Rising Sun 41
- Rock Hall 41
- Aberdeen Proving Ground 40
- Grasonville 40
- Havre de Grace 40
- Saint Michaels 40
- Perryville 39
- Algonquin 35
- Cambridge 35
- Charlestown 35
- Kingstown 35
- North East 34
- Trappe 34
- Chillum 33
- Essex 32
- Ridgely 32
- Federalsburg 31
- Greensboro 31
- Hurlock 31
- Charlotte Hall 29
- Hebron 28
- Crisfield 27
- Salisbury 27
- Clinton 26
- Fruitland 26
- Green Haven 25
- Ocean Pines 25
- Owings Mills 25
- Pittsville 25
- Queen Anne 25
- Thurmont 25
- North Potomac 24
- Brunswick 23
- Easton 23
- Frederick 23
- Keedysville 23
- Ocean City 23
- Urbana 23
- West Ocean City 23
- Capitol Heights 22
- Pikesville 22
- Snow Hill 22
- Colmar Manor 21
- Forest Heights 21
- Glen Burnie 21
- Greenbelt 21
- North Bethesda 21
- Severn 21
- Baltimore 20
- California 20
- Clarksburg 20
- Colesville 20
- College Park 20
- Lusby 20
- Saint Mary 20
- Westminster 20
- Cockeysville 19
- Parkville 19
- Reisterstown 19
- Seat Pleasant 19
- Takoma Park 19
- Beltsville 18
- Catonsville 18
- Cheverly 18
- Dundalk 18
- Frostburg 18
- Kensington 18
- Landover 18
- Leonardtown 18
- Lothian 18
- Marlboro Meadows 18
- Chesapeake Beach 17
- Chestertown 17
- Chevy Chase 17
- La Plata 17
- Potomac 17
- Silver Spring 17
- University Park 17
- Wheaton 17
- Annapolis 16
- Brandywine 16
- Emmitsburg 16
- Largo 16
- Lexington Park 16
- Mechanicsville 16
- Princess Anne 16
- Chester 15
- Fairmount Heights 15
- Glenn Dale 15
- Milford Mill 15
- Oxon Hill 15
- Savage 15
- Mount Airy 14
- Pocomoke City 14
- Riverdale Park 14
- Rockville 14
- Berlin 13
- Denton 13
- Hughesville 13
- North Laurel 13
- Elkton 12
- Hyattsville 12
- Towson 12
- Hagerstown 11
- Centreville 10
- Parole 10
- Bethesda 9
- Damascus 9
- Edgewood 8
- Overlea 8
- Gaithersburg 7
- Millington 6
- Hanover 5
- West Laurel 5
- Derwood 3
AQI US, Metric