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 Illinois
Air quality index (AQI) and PM2.5 air pollution in Illinois
LIVE AQI CITY RANKING
Real-time Illinois
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 | McLeansboro | 40 |
| 2 | Lemont | 38 |
| 3 | Centralia | 35 |
| 4 | Lansing | 35 |
| 5 | Savoy | 35 |
| 6 | Peoria | 33 |
| 7 | Springfield | 33 |
| 8 | Urbana | 30 |
| 9 | Alsip | 29 |
| 10 | Machesney Park | 29 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
113 Contributors
See all
LIVE AQI CITY RANKING
Real-time Illinois
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Venice | 1 |
| 2 | Hartford | 2 |
| 3 | La Grange | 2 |
| 4 | La Salle | 2 |
| 5 | Lebanon | 2 |
| 6 | Wheaton | 2 |
| 7 | Union Hill | 3 |
| 8 | West Ridge | 3 |
| 9 | Charleston | 5 |
| 10 | Highland | 5 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
News
The latest air quality news and resources.
Illinois air quality data attribution
113Contributors
Government Contributor
- American Plantes LLC
1 station
- AT
1 station
- Grovedrv57
1 station
- DB
1 station
Bucktown air1 station
- Robert Moresco
2 stations
- Tim Holm
1 station
- Avraham Mor
1 station
- James meyer
1 station
- Dave hansen
1 station
- h. Seeger
1 station
11 Individual Contributors
- 100 Anonymous contributors
100 stations
100 Anonymous Contributors
Which is the most polluted city in Illinois?
- Palestine 46
- Grayville 45
- Lawrenceville 45
- Mount Carmel 45
- Robinson 45
- Shawneetown 45
- Carmi 44
- Danville 44
- Elizabethtown 44
- Georgetown 44
- Marshall 44
- Rosiclare 44
- Sumner 44
- Albion 43
- Chrisman 43
- Eldorado 43
- Golconda 43
- Metropolis 43
- Norris City 43
- Oblong 43
- Paris 43
- Tilton 43
- Westville 43
- Carrier Mills 42
- Casey 42
- Catlin 42
- Fairfield 42
- Flora 42
- Harrisburg 42
- Martinsville 42
- Newton 42
- Olney 42
- Wayne City 42
- Benton 41
- Greenup 41
- Ina 41
- Johnston City 41
- Louisville 41
- Marion 41
- Mount Vernon 41
- Oakwood 41
- Quincy 41
- Rossville 41
- Sheldon 41
- Toledo 41
- West Frankfort 41
- Arcola 40
- Beecher 40
- Burnham 40
- Cairo 40
- Calumet City 40
- Cambria 40
- Carterville 40
- Chatham 40
- Christopher 40
- Crainville 40
- Dolton 40
- Effingham 40
- Energy 40
- Ford Heights 40
- Gifford 40
- Glenwood 40
- Goreville 40
- Greater Grand Crossing 40
- Harvey 40
- Herrin 40
- Hoopeston 40
- Hyde Park 40
- Kenwood 40
- Lynwood 40
- Mattoon 40
- McLeansboro 40
- Milford 40
- Momence 40
- Mound City 40
- Neoga 40
- Philo 40
- Phoenix 40
- Rantoul 40
- Riverdale 40
- Royalton 40
- Saint Joseph 40
- Sauk Village 40
- Sesser 40
- Sidney 40
- South Chicago 40
- South Holland 40
- South Shore 40
- Teutopolis 40
- Thomasboro 40
- Thornton 40
- Tolono 40
- Tuscola 40
- Vienna 40
- Villa Grove 40
- Watseka 40
- Woodlawn 40
- Zeigler 40
- Albany Park 39
- Altamont 39
- Arthur 39
- Ashburn 39
- Atwood 39
- Auburn Gresham 39
- Avondale 39
- Belmont Cragin 39
- Berwyn 39
- Blue Island 39
- Bourbonnais 39
- Bradley 39
- Bridgeport 39
- Bridgeview 39
- Brighton Park 39
- Brookfield 39
- Burbank 39
- Calumet Park 39
- Carbondale 39
- Central City 39
- Chebanse 39
- Chicago Heights 39
- Chicago Lawn 39
- Chicago Loop 39
- Chicago Ridge 39
- Clifton 39
- Country Club Hills 39
- Countryside 39
- Crestwood 39
- Crete 39
- De Soto 39
- Dixmoor 39
- Douglas 39
- Du Quoin 39
- East Garfield Park 39
- East Hazel Crest 39
- Edgewater 39
- Elmwood Park 39
- Elwood 39
- Englewood 39
- Evergreen Park 39
- Fisher 39
- Flossmoor 39
- Forest Park 39
- Frankfort 39
- Frankfort Square 39
- Gage Park 39
- Gibson City 39
- Gilman 39
- Goodings Grove 39
- Grand Boulevard 39
- Grant Park 39
- Harwood Heights 39
- Hazel Crest 39
- Hickory Hills 39
- Hodgkins 39
- Homer Glen 39
- Hometown 39
- Ingalls Park 39
- Irving Park 39
- Justice 39
- Kankakee 39
- Kenilworth 39
- Lake of the Woods 39
- Limestone 39
- Lincoln Park 39
- Lincoln Square 39
- Lincolnwood 39
- Logan Square 39
- Lower West Side 39
- Manhattan 39
- Markham 39
- Matteson 39
- McKinley Park 39
- Merrionette Park 39
- Midlothian 39
- Mokena 39
- Monee 39
- Morgan Park 39
- Morton Grove 39
- Mount Greenwood 39
- Near North Side 39
- Near South Side 39
- New City 39
- New Lenox 39
- North Center 39
- North Lawndale 39
- North Riverside 39
- Oak Forest 39
- Oak Lawn 39
- Odin 39
- Olympia Fields 39
- Onarga 39
- Orland Hills 39
- Palos Heights 39
- Palos Hills 39
- Palos Park 39
- Park Forest 39
- Paxton 39
- Portage Park 39
- Posen 39
- Richton Park 39
- Riverside 39
- Robbins 39
- Rogers Park 39
- Saint Anne 39
- Saint Elmo 39
- Salem 39
- Sandoval 39
- South Chicago Heights 39
- South Lawndale 39
- Steger 39
- Stickney 39
- Summit 39
- Tinley Park 39
- University Park 39
- Uptown 39
- Vandalia 39
- Wamac 39
- West Elsdon 39
- West Englewood 39
- West Garfield Park 39
- West Lawn 39
- West Town 39
- Willow Springs 39
- Windsor 39
- Winnetka 39
- Worth 39
- Addison 38
- Anna 38
- Arlington Heights 38
- Bannockburn 38
- Beach Park 38
- Bellwood 38
- Bement 38
- Bensenville 38
- Berkeley 38
- Bethany 38
- Bolingbrook 38
- Braidwood 38
- Broadview 38
- Buffalo Grove 38
- Burr Ridge 38
- Cerro Gordo 38
- Channahon 38
- Chatsworth 38
- Clarendon Hills 38
- Colfax 38
- Crest Hill 38
- Crystal Lawns 38
- Darien 38
- Deerfield 38
- Diamond 38
- Downers Grove 38
- Dwight 38
- Elmhurst 38
- Fairbury 38
- Fairmont 38
- Farmer City 38
- Forrest 38
- Franklin Park 38
- Gardner 38
- Glencoe 38
- Glenview 38
- Grandwood Park 38
- Green Oaks 38
- Gurnee 38
- Herscher 38
- Highland Park 38
- Highwood 38
- Hillside 38
- Hinsdale 38
- Indian Head Park 38
- Jonesboro 38
- Knollwood 38
- La Grange Park 38
- Lake Bluff 38
- Lakewood Shores 38
- Le Roy 38
- Lemont 38
- Lincolnshire 38
- Lockport 38
- Lombard 38
- Lovington 38
- Maryville 38
- Maywood 38
- Melrose Park 38
- Minooka 38
- Monticello 38
- Mount Prospect 38
- Murphysboro 38
- Niles 38
- Norridge 38
- North Chicago 38
- Northfield 38
- Northlake 38
- Oak Brook 38
- Oakbrook Terrace 38
- Pana 38
- Park Ridge 38
- Plainfield 38
- Preston Heights 38
- Prospect Heights 38
- Ramsey 38
- River Grove 38
- Riverwoods 38
- Rockdale 38
- Romeoville 38
- Rosemont 38
- Shelbyville 38
- Stone Park 38
- Sullivan 38
- Villa Park 38
- Wadsworth 38
- Waukegan 38
- Westchester 38
- Western Springs 38
- Westmont 38
- Wheeling 38
- Winthrop Harbor 38
- Wood Dale 38
- Woodridge 38
- Zion 38
- Antioch 37
- Assumption 37
- Beckemeyer 37
- Bloomingdale 37
- Boulder Hill 37
- Carlyle 37
- Carol Stream 37
- Channel Lake 37
- Chenoa 37
- Clinton 37
- Gages Lake 37
- Glen Ellyn 37
- Glendale Heights 37
- Hanover Park 37
- Hawthorn Woods 37
- Heyworth 37
- Hoffman Estates 37
- Inverness 37
- Itasca 37
- Kildeer 37
- Lake Catherine 37
- Lake Villa 37
- Lexington 37
- Long Creek 37
- Long Grove 37
- Maroa 37
- Montgomery 37
- Morris 37
- Mount Zion 37
- Moweaqua 37
- Mundelein 37
- Nashville 37
- Nokomis 37
- Oswego 37
- Pinckneyville 37
- Pontiac 37
- Rolling Meadows 37
- Roselle 37
- Round Lake Beach 37
- Schaumburg 37
- Seneca 37
- Third Lake 37
- Venetian Village 37
- Vernon Hills 37
- Warrenville 37
- West Chicago 37
- Winfield 37
- Albers 36
- Algonquin 36
- Aviston 36
- Barrington 36
- Barrington Hills 36
- Bartlett 36
- Batavia 36
- Big Rock 36
- Bloomington 36
- Blue Mound 36
- Breese 36
- Bull Valley 36
- Carpentersville 36
- Crystal Lake 36
- East Dundee 36
- Elburn 36
- Elgin 36
- Flanagan 36
- Forest Lake 36
- Forsyth 36
- Fox Lake 36
- Fox Lake Hills 36
- Fox River Grove 36
- Geneva 36
- Germantown 36
- Gilberts 36
- Greenville 36
- Gridley 36
- Hainesville 36
- Harristown 36
- Hebron 36
- Hillsboro 36
- Hudson 36
- Island Lake 36
- Johnsburg 36
- Lake Barrington 36
- Lake Holiday 36
- Lake in the Hills 36
- Lake Zurich 36
- Lakemoor 36
- Lakewood 36
- Lily Lake 36
- Long Lake 36
- Macon 36
- Marseilles 36
- McCullom Lake 36
- McHenry 36
- North Aurora 36
- North Barrington 36
- Oakwood Hills 36
- Okawville 36
- Pingree Grove 36
- Pistakee Highlands 36
- Plano 36
- Port Barrington 36
- Prairie Grove 36
- Prestbury 36
- Richmond 36
- Round Lake 36
- Round Lake Park 36
- Sandwich 36
- Sheridan 36
- Sleepy Hollow 36
- Somonauk 36
- South Barrington 36
- South Elgin 36
- Spring Grove 36
- Sugar Grove 36
- Taylorville 36
- Tower Lake 36
- Upper Alton 36
- Village of Campton Hills 36
- Volo 36
- Warrensburg 36
- Wasco 36
- Wauconda 36
- Wayne 36
- West Dundee 36
- Wonder Lake 36
- Yorkville 36
- Atlanta 35
- Bartonville 35
- Capron 35
- Centralia 35
- Chester 35
- Chillicothe 35
- Cortland 35
- Creve Coeur 35
- Deer Park 35
- Delavan 35
- Dunlap 35
- Earlville 35
- East Peoria 35
- Edinburg 35
- El Paso 35
- Elmwood 35
- Eureka 35
- Genoa 35
- Germantown Hills 35
- Glasford 35
- Granville 35
- Hampshire 35
- Hanna City 35
- Harvard 35
- Henry 35
- Heritage Lake 35
- Hinckley 35
- Huntley 35
- Kincaid 35
- Kingston 35
- Lacon 35
- Lake Camelot 35
- Lansing 35
- Lincoln 35
- Mackinaw 35
- Maple Park 35
- Marquette Heights 35
- Metamora 35
- Minier 35
- Minonk 35
- Morrisonville 35
- Morton 35
- Mount Pulaski 35
- New Baden 35
- North Pekin 35
- North Peoria 35
- Oglesby 35
- Ottawa 35
- Pekin 35
- Peoria Heights 35
- Peru 35
- Pocahontas 35
- Poplar Grove 35
- Princeville 35
- Roanoke 35
- Rome 35
- Saint Jacob 35
- Savoy 35
- South Pekin 35
- Spring Valley 35
- Steeleville 35
- Streator 35
- Sycamore 35
- Toluca 35
- Tremont 35
- Trenton 35
- Twin Grove 35
- Washburn 35
- Washington 35
- Waterman 35
- West Peoria 35
- Belvidere 34
- Benld 34
- Bethalto 34
- Bunker Hill 34
- Canton 34
- Carlinville 34
- Cherry Valley 34
- Collinsville 34
- Davis Junction 34
- Depue 34
- Divernon 34
- Edwardsville 34
- Farmington 34
- Gillespie 34
- Girard 34
- Glen Carbon 34
- Hamilton 34
- Hennepin 34
- Hillcrest 34
- Holiday Shores 34
- Kirkland 34
- Ladd 34
- Lake Summerset 34
- Litchfield 34
- Malta 34
- Manito 34
- Marissa 34
- Mascoutah 34
- Mason City 34
- Mendota 34
- Mount Olive 34
- Nauvoo 34
- O'Fallon 34
- Pawnee 34
- Riverton 34
- Rochelle 34
- Rochester 34
- Rockton 34
- Roscoe 34
- Rosewood Heights 34
- Roxana 34
- Scott Air Force Base 34
- Shiloh 34
- South Beloit 34
- South Roxana 34
- Staunton 34
- Stillman Valley 34
- Toulon 34
- Troy 34
- Warsaw 34
- Williamsville 34
- Winnebago 34
- Worden 34
- Wyoming 34
- Alton 33
- Amboy 33
- Ashland 33
- Astoria 33
- Athens 33
- Auburn 33
- Beardstown 33
- Belleville 33
- Brighton 33
- Bushnell 33
- Byron 33
- Carthage 33
- Caseyville 33
- Cuba 33
- Dixon 33
- East Alton 33
- East Dubuque 33
- Fairmont City 33
- Fairview Heights 33
- Forreston 33
- Freeburg 33
- Freeport 33
- Galena 33
- Galva 33
- Godfrey 33
- Grandview 33
- Greenfield 33
- Havana 33
- Jacksonville 33
- Jerome 33
- Kewanee 33
- La Harpe 33
- Leland Grove 33
- Lena 33
- Lewistown 33
- Madison 33
- Mitchell 33
- Mount Morris 33
- New Athens 33
- Oquawka 33
- Oregon 33
- Pecatonica 33
- Peoria 33
- Petersburg 33
- Polo 33
- Pontoon Beach 33
- Princeton 33
- Sherman 33
- South Jacksonville 33
- Southern View 33
- Springfield 33
- Stockton 33
- Swansea 33
- The Galena Territory 33
- Virden 33
- Virginia 33
- Walnut 33
- Warren 33
- Waverly 33
- Abingdon 32
- Aledo 32
- Alorton 32
- Andalusia 32
- Barry 32
- Cahokia 32
- Cambridge 32
- Camp Point 32
- Carbon Cliff 32
- Carrollton 32
- Centreville 32
- Coal Valley 32
- Colchester 32
- Colona 32
- Dupo 32
- East Moline 32
- Galesburg 32
- Geneseo 32
- Green Rock 32
- Griggsville 32
- Hampton 32
- Hardin 32
- Knoxville 32
- Lanark 32
- Macomb 32
- Meredosia 32
- Millstadt 32
- Monmouth 32
- Mount Carroll 32
- Mount Sterling 32
- Orion 32
- Payson 32
- Pittsfield 32
- Port Byron 32
- Prophetstown 32
- Red Bud 32
- Rock Falls 32
- Rock Island 32
- Roodhouse 32
- Rushville 32
- Savanna 32
- Silvis 32
- Smithton 32
- Sterling 32
- White Hall 32
- Winchester 32
- Columbia 31
- Erie 31
- Fulton 31
- Morrison 31
- Valmeyer 31
- Waterloo 31
- Urbana 30
- Alsip 29
- Machesney Park 29
- Streamwood 29
- Cobden 28
- McCook 28
- Sparta 27
- Champaign 26
- Saint Charles 26
- Lisle 25
- Northbrook 25
- West Union 25
- Homer 24
- Park City 24
- Woodstock 24
- Decatur 23
- Rockford 23
- Danvers 22
- Round Lake Heights 22
- Des Plaines 21
- Loves Park 21
- Normal 21
- Schiller Park 21
- Washington Park 21
- Bellevue 20
- New Berlin 20
- Palatine 20
- Shorewood 20
- Cary 19
- Jerseyville 19
- Lindenhurst 19
- Lyons 19
- Moline 19
- Grayslake 18
- Milan 18
- Wilmington 18
- East Saint Louis 17
- Libertyville 17
- Cicero 16
- Wood River 15
- Granite City 14
- Lake Forest 14
- Naperville 14
- River Forest 14
- Aurora 13
- Homewood 12
- Joliet 12
- Mahomet 12
- Manteno 12
- Durand 10
- Skokie 10
- Wilmette 10
- Chicago 9
- Evanston 9
- Oak Park 9
- DeKalb 8
- Elk Grove Village 7
- Willowbrook 7
- Coal City 6
- Charleston 5
- Highland 5
- Marengo 5
- Newark 5
- Orland Park 5
- Peotone 5
- Union Hill 3
- West Ridge 3
- Hartford 2
- La Grange 2
- La Salle 2
- Lebanon 2
- Wheaton 2
- Venice 1
AQI US, Metric