Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Washington
Air quality index (AQI) and PM2.5 air pollution in Washington
LIVE AQI CITY RANKING
Real-time Washington
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Ashford | 40 |
| 2 | Artondale | 35 |
| 3 | Pacific Beach | 32 |
| 4 | Dayton | 31 |
| 5 | Nooksack | 30 |
| 6 | Port Ludlow | 28 |
| 7 | Sequim | 28 |
| 8 | Tulalip | 28 |
| 9 | Oak Harbor | 27 |
| 10 | Port Angeles | 27 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
929 Contributors
See all
3D animated air pollution map
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
News
The latest air quality news and resources.
Washington air quality data attribution
929Contributors
- Washington Air Monitoring Network
53 stations
- Northwest Clean Air Agency
8 stations
- Washington USA
2 stations
- Puget Sound Clean Air Agency
5 stations
- USA National Park Service
8 stations
5 Government Contributors
- IQAir Dev Lab
1 station
Methow Valley Citizens Council (MVCC)8 stations
- grounds department
1 station
3 Non-profit organization Contributors
- SeattleFreeze
1 station
Portland State University (PSU)2 stations
- Thom Proehl
1 station
3 Educational Contributors
Dan1 station
- AB
1 station
- Quinn
1 station
- Geoff Killam
1 station
- william selig
1 station
Opuelas1 station
- robc7777
1 station
- J_T_W
1 station
Anonymous1 station
- IQAir Community Member
1 station
- C.m.
1 station
- Nathaniel Blue
2 stations
- Zac
1 station
- Daniela
2 stations
31st and Howe1 station
- Lance
1 station
- Tom
1 station
- Heather Kelly
1 station
EKLynx2 stations
- Chiara Coetzee
1 station
The Chameleon1 station
Joseph Gleason2 stations
- eHouse
1 station
Bay1 station
- Tim H
1 station
Shaun Bell1 station
- Pop Ongsakorn
1 station
- Scott Thurlow
1 station
- Samuel Herschbein
1 station
- Joseph M
1 station
- Marcel Ceballos
1 station
- Peter Moon
1 station
Algernon Findiggle1 station
- Haydon
1 station
Paul J.1 station
- rswistok@hotmail.com
1 station
- clint68d
1 station
- Joshua
1 station
- Nicholas Rosenzweig
1 station
- Patrik Schnell
2 stations
Northwest Seattleite1 station
- Julie
1 station
DN1 station
- Christian Johannessen
1 station
Fruitland St1 station
- Swinefeaster X
1 station
- 0bsidianlock
1 station
- JB
1 station
- Jay Sauls
1 station
- balldt
1 station
Pokémon1 station
- Adam
1 station
- Patrick Boehnke
1 station
- S. Lancaster
1 station
- house
1 station
Em1 station
- Kenneth Hamer
1 station
- Howard M
1 station
- raphael
1 station
- John Bullivant
1 station
- Leon van hees
1 station
CWS1 station
- IQAir Community Member
1 station
- NineAce
1 station
- masoodj
1 station
- nokturne
1 station
- snipeman
1 station
Kurt Gazow1 station
- Opie
1 station
- Taylor Black
1 station
- Andrew DeFilippis
1 station
- Aclean2Ql024
1 station
- EH
1 station
- SFHouse
1 station
- Taylor
1 station
- GV
1 station
- ashley
1 station
- Wise Acres
1 station
BaseCamp1 station
- Chris
1 station
- Azrael
1 station
PB1 station
- IQAir Community Member
1 station
- Anonymous
1 station
- Mark McLaughlin
1 station
- Clemens
1 station
- Breathe Easy
1 station
- Bryan
1 station
- Dale White
1 station
Mason1 station
mimbo1 station
Graham McIntyre1 station
Woodinville Resident1 station
- IQAir Community Member
1 station
Mr. View Ridge1 station
- IQAir Community Member
1 station
- Tanya Botta
1 station
WhidbeyWonders1 station
- Truth
1 station
- rheb Johnson
1 station
- Lewis T
1 station
101 Individual Contributors
817 Anonymous contributors817 stations
817 Anonymous Contributors
Which is the most polluted city in Washington?
- Benton City 61
- Ashford 40
- Artondale 35
- Pacific Beach 32
- Dayton 31
- Nooksack 30
- Port Ludlow 28
- Sequim 28
- Tulalip 28
- Oak Harbor 27
- Port Angeles 27
- Skagit 27
- Tonasket 27
- Alderwood Manor 26
- Eatonville 26
- Lake Stevens 26
- Lakeland South 26
- Lynden 26
- Marysville 26
- Monroe 26
- Peaceful Valley 26
- Arlington 25
- Bellingham 25
- Bothell 25
- Coupeville 25
- Custer 25
- Everett 25
- Everson 25
- Kenmore 25
- Kirkland 25
- Lynnwood 25
- Martha Lake 25
- Mukilteo 25
- Point Roberts 25
- Riverbend 25
- Seabeck 25
- Tulalip Bay 25
- Ames Lake 24
- Brush Prairie 24
- Camano 24
- Covington 24
- Decatur Island 24
- East Renton Highlands 24
- Friday Harbor 24
- Lake Forest Park 24
- Lake Marcel-Stillwater 24
- Lake Morton-Berrydale 24
- Langley 24
- Mill Creek 24
- Normandy Park 24
- Picnic Point-North Lynnwood 24
- San Juan 24
- Shoreline 24
- Sumas 24
- Tukwila 24
- Woodinville 24
- Anacortes 23
- Bainbridge Island 23
- Bellevue 23
- Burlington 23
- Esperance 23
- Gig Harbor 23
- Omak 23
- Port Townsend 23
- Seattle 23
- Union Hill-Novelty Hill 23
- Auburn 22
- Blaine 22
- Ferndale 22
- Granite Falls 22
- Inglewood-Finn Hill 22
- Klahanie 22
- Maltby 22
- Mason 22
- Mount Vernon 22
- Pacific 22
- Picnic Point 22
- Redmond 22
- Ridgefield 22
- Snohomish 22
- Stanwood 22
- Tumwater 22
- Washougal 22
- West Valley 22
- Brier 21
- Buckley 21
- Darrington 21
- East Wenatchee 21
- Edmonds 21
- Gold Bar 21
- Grandview 21
- Kelso 21
- Kent 21
- Kingston 21
- Lakewood 21
- Medina 21
- Mercer Island 21
- North Creek 21
- Poulsbo 21
- Prosser 21
- Renton 21
- Sammamish 21
- Sedro-Woolley 21
- Shelton 21
- Tacoma 21
- Waller 21
- Wapato 21
- Bonney Lake 20
- Bremerton 20
- Bryn Mawr-Skyway 20
- Burien 20
- Clyde Hill 20
- Fall City 20
- Fox Island 20
- Freeland 20
- Goldendale 20
- Indianola 20
- Lacey 20
- Manchester 20
- Manson 20
- Marietta 20
- Mazama 20
- Mill Plain 20
- Minnehaha 20
- North Bend 20
- Okanogan 20
- Port Orchard 20
- Steilacoom 20
- Taholah 20
- Tanner 20
- University Place 20
- Vashon 20
- Waterville 20
- Wenatchee 20
- Yakima 20
- Yelm 20
- Battle Ground 19
- Brewster 19
- Camas 19
- Carnation 19
- Des Moines 19
- Elma 19
- Jefferson 19
- Kalama 19
- Klickitat 19
- Lake Shore 19
- Longview Heights 19
- Maple Valley 19
- Mead 19
- Orchards 19
- Oroville 19
- Puyallup 19
- Silverdale 19
- Terrace Heights 19
- Vancouver 19
- Whatcom 19
- Woodland 19
- Woodway 19
- Castle Rock 18
- Cathlamet 18
- Chelan 18
- Cottage Lake 18
- Coulee Dam 18
- Duvall 18
- Federal Way 18
- Issaquah 18
- Kahlotus 18
- La Center 18
- Leavenworth 18
- Lewisville 18
- Mountlake Terrace 18
- Olympia 18
- Ravensdale 18
- Republic 18
- Rochester 18
- Selah 18
- Tenino 18
- Tieton 18
- Twisp 18
- White Salmon 18
- Winthrop 18
- Aberdeen 17
- Arlington Heights 17
- Bangor Trident Base 17
- Black Diamond 17
- Bothell East 17
- Bothell West 17
- Boulevard Park 17
- Bryant 17
- Bunk Foss 17
- Burbank 17
- Cathcart 17
- City of Sammamish 17
- Clearview 17
- East Hill-Meridian 17
- Eastgate 17
- Eastmont 17
- Ellensburg 17
- Enetai 17
- Fobes Hill 17
- Grand Coulee 17
- Hoquiam 17
- Kingsgate 17
- Lake Stickney 17
- Lakeland North 17
- Larch Way 17
- Lea Hill 17
- Lochsloy 17
- Lofall 17
- Machias 17
- Maple Heights-Lake Desire 17
- Meadowdale 17
- Mill Creek East 17
- Monroe North 17
- Newcastle 17
- Pasco 17
- Pateros 17
- Port Hadlock-Irondale 17
- Richland 17
- Riverton 17
- Rocky Point 17
- SeaTac 17
- Silver Firs 17
- Sisco Heights 17
- Smokey Point 17
- Snoqualmie 17
- Southworth 17
- Sultan 17
- Three Lakes 17
- Tracyton 17
- Warm Beach 17
- West Lake Sammamish 17
- West Lake Stevens 17
- Westport 17
- White Center 17
- Woods Creek 17
- Alderton 16
- Algona 16
- Allyn 16
- Ault Field 16
- Bethel 16
- Big Lake 16
- Birch Bay 16
- Browns Point 16
- Burley 16
- Canterwood 16
- Chico 16
- Clear Lake 16
- Crocker 16
- Dishman 16
- DuPont 16
- East Port Orchard 16
- Elk Plain 16
- Enumclaw 16
- Erlands Point-Kitsap Lake 16
- Fairchild Air Force Base 16
- Fife 16
- Fife Heights 16
- Fircrest 16
- Frederickson 16
- Graham 16
- Hobart 16
- Home 16
- Joint Base Lewis McChord 16
- Key Center 16
- Liberty Lake 16
- Longbranch 16
- Maplewood 16
- Marietta-Alderwood 16
- Maryhill 16
- McChord Air Force Base 16
- McMillin 16
- Midland 16
- Millwood 16
- Milton 16
- Moses Lake 16
- Navy Yard City 16
- North Fort Lewis 16
- North Puyallup 16
- North Yelm 16
- Orting 16
- Parkland 16
- Parkwood 16
- Prairie Heights 16
- Prairie Ridge 16
- Purdy 16
- Rosedale 16
- South Hill 16
- Spanaway 16
- Summit 16
- Summit View 16
- Sumner 16
- Tanglewilde 16
- Tanglewilde-Thompson Place 16
- Town and Country 16
- Walla Walla East 16
- Wauna 16
- Wilderness Rim 16
- Wollochet 16
- Baring 15
- Belfair 15
- Carson 15
- Cle Elum 15
- Edgewood 15
- Geneva 15
- Inchelium 15
- Medical Lake 15
- Port Angeles East 15
- Rainier 15
- Sudden Valley 15
- Wilson Creek 15
- Bridgeport 14
- Centralia 14
- Chehalis 14
- Chewelah 14
- Colfax 14
- East Wenatchee Bench 14
- Entiat 14
- Fords Prairie 14
- Grand Mound 14
- Harrington 14
- Kennewick 14
- Long Beach 14
- McCleary 14
- Montesano 14
- Morton 14
- Mossyrock 14
- Napavine 14
- Neah Bay 14
- Ocean Park 14
- Ronald 14
- South Wenatchee 14
- Sunnyslope 14
- Walla Walla 14
- West Side Highway 14
- West Wenatchee 14
- Winlock 14
- Basin City 13
- Central Park 13
- College Place 13
- Colville 13
- Connell 13
- Forks 13
- Kettle Falls 13
- Kittitas 13
- Opportunity 13
- Sekiu 13
- Spokane 13
- Spokane Valley 13
- Suquamish 13
- Warden 13
- West Longview 13
- Ahtanum 12
- Amboy 12
- Asotin 12
- Barberton 12
- Clarkston Heights-Vineland 12
- Cosmopolis 12
- Cusick 12
- Dallesport 12
- Desert Aire 12
- Dollar Corner 12
- Fairwood 12
- Felida 12
- Fern Prairie 12
- Finley 12
- Five Corners 12
- Granger 12
- Grays Harbor 12
- Hansville 12
- Hazel Dell 12
- Highland 12
- Hockinson 12
- Longview 12
- Mabton 12
- Meadow Glade 12
- Metaline 12
- Mount Vista 12
- Newport 12
- Ocean Shores 12
- Salmon Creek 12
- South Bend 12
- Union Gap 12
- Venersborg 12
- Veradale 12
- Walnut Grove 12
- West Clarkston-Highland 12
- West Pasco 12
- White Swan 12
- Willard 12
- Zillah 12
- Addy 11
- Cascade Valley 11
- Ephrata 11
- Garrett 11
- Moses Lake North 11
- Royal City 11
- Waitsburg 11
- Cashmere 10
- Cheney 10
- Electric City 10
- Otis Orchards-East Farms 10
- Palouse 10
- Pullman 10
- Ritzville 10
- Rosalia 10
- Yarrow Point 10
- Country Homes 9
- Deer Park 9
- LaCrosse 9
- Othello 9
- Quincy 9
- Soap Lake 9
- Mirrormont 8
- Sunnyside 8
- Toppenish 8
- Pomeroy 7
- Raymond 7
- Wellpinit 7
- Mesa 5
- Yacolt 5
- Airway Heights 4
- Gleed 4
- Orondo 4
- Mattawa 3
- Clarkston 2
- Davenport 2
- Stevenson 2
- Trentwood 2
- Oakville 0
- West Richland 0
AQI US, Metric