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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 | McCook | 67 |
| 2 | Cicero | 55 |
| 3 | Machesney Park | 53 |
| 4 | Palatine | 51 |
| 5 | River Forest | 49 |
| 6 | Centralia | 48 |
| 7 | Oak Park | 46 |
| 8 | Schiller Park | 44 |
| 9 | Alsip | 43 |
| 10 | Lyons | 42 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
107 Contributors
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LIVE AQI CITY RANKING
Real-time Illinois
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Venice | 6 |
| 2 | Marengo | 8 |
| 3 | Newark | 8 |
| 4 | Granite City | 17 |
| 5 | Hartford | 17 |
| 6 | Charleston | 19 |
| 7 | Durand | 19 |
| 8 | Lebanon | 19 |
| 9 | Cobden | 20 |
| 10 | La Salle | 21 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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The latest air quality news and resources.
Illinois air quality data attribution
107Contributors
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
- 94 Anonymous contributors
94 stations
94 Anonymous Contributors
Which is the most polluted city in Illinois?
- McCook 67
- Cicero 55
- Machesney Park 53
- Palatine 51
- River Forest 49
- Centralia 48
- Oak Park 46
- Anna 44
- Edwardsville 44
- Ina 44
- Jonesboro 44
- Mount Vernon 44
- Pocahontas 44
- Saint Jacob 44
- Schiller Park 44
- Sesser 44
- Trenton 44
- Troy 44
- Worden 44
- Albers 43
- Alsip 43
- Alton 43
- Aviston 43
- Beckemeyer 43
- Benton 43
- Bethalto 43
- Breese 43
- Bunker Hill 43
- Cambria 43
- Carbondale 43
- Carlyle 43
- Carrier Mills 43
- Carterville 43
- Christopher 43
- Collinsville 43
- De Soto 43
- Du Quoin 43
- East Alton 43
- Eldorado 43
- Energy 43
- Germantown 43
- Glen Carbon 43
- Goreville 43
- Griggsville 43
- Harrisburg 43
- Herrin 43
- Holiday Shores 43
- Johnston City 43
- Marion 43
- Maryville 43
- Mascoutah 43
- Mitchell 43
- Murphysboro 43
- Nashville 43
- New Baden 43
- O'Fallon 43
- Okawville 43
- Pinckneyville 43
- Pontoon Beach 43
- Rosewood Heights 43
- Roxana 43
- Royalton 43
- Scott Air Force Base 43
- Shiloh 43
- South Roxana 43
- Staunton 43
- Steeleville 43
- Upper Alton 43
- Vienna 43
- West Frankfort 43
- Zeigler 43
- Alorton 42
- Barry 42
- Belleville 42
- Benld 42
- Brighton 42
- Cahokia 42
- Cairo 42
- Camp Point 42
- Carrollton 42
- Caseyville 42
- Centreville 42
- Chester 42
- Elizabethtown 42
- Fairmont City 42
- Fairview Heights 42
- Freeburg 42
- Gillespie 42
- Godfrey 42
- Golconda 42
- Greenfield 42
- Lyons 42
- Madison 42
- Marissa 42
- Meredosia 42
- Mound City 42
- Mount Sterling 42
- New Athens 42
- Norris City 42
- Payson 42
- Pittsfield 42
- Quincy 42
- Roodhouse 42
- Rosiclare 42
- Shawneetown 42
- Streamwood 42
- Swansea 42
- Wamac 42
- Warsaw 42
- Wayne City 42
- White Hall 42
- Winchester 42
- Carmi 41
- Central City 41
- Columbia 41
- Dupo 41
- Fairfield 41
- Hamilton 41
- Hardin 41
- Metropolis 41
- Millstadt 41
- Mount Olive 41
- Nauvoo 41
- Red Bud 41
- Smithton 41
- Valmeyer 41
- Waterloo 41
- Albion 40
- Carthage 40
- Grayville 40
- Mount Carmel 40
- Sandoval 40
- Coal City 39
- Greenville 39
- Odin 39
- Woodstock 39
- Lemont 38
- Round Lake Heights 38
- Salem 38
- Flora 37
- Lawrenceville 37
- Litchfield 37
- Loves Park 37
- Manteno 37
- South Jacksonville 37
- Wilmette 37
- Olney 36
- Sumner 36
- Cary 35
- Chicago 35
- Grayslake 35
- Jacksonville 35
- Naperville 35
- Saint Charles 35
- Rockford 34
- Winthrop Harbor 34
- Aurora 33
- Libertyville 33
- Louisville 33
- Shorewood 33
- Union Hill 33
- Beardstown 32
- Colchester 32
- Evanston 32
- Joliet 32
- Lindenhurst 32
- Rushville 32
- Skokie 32
- Wheaton 32
- Albany Park 31
- Avondale 31
- Bannockburn 31
- Buffalo Grove 31
- Carlinville 31
- Deerfield 31
- Des Plaines 31
- Edgewater 31
- Gages Lake 31
- Glencoe 31
- Glenview 31
- Green Oaks 31
- Hainesville 31
- Hawthorn Woods 31
- Highland Park 31
- Highwood 31
- Hillsboro 31
- Irving Park 31
- Kenilworth 31
- Knollwood 31
- La Harpe 31
- Lake Bluff 31
- Lincoln Park 31
- Lincoln Square 31
- Lincolnshire 31
- Lincolnwood 31
- Logan Square 31
- Long Grove 31
- Morton Grove 31
- Mundelein 31
- Niles 31
- North Center 31
- North Chicago 31
- Northfield 31
- Park Ridge 31
- Portage Park 31
- Prospect Heights 31
- Riverwoods 31
- Rogers Park 31
- Uptown 31
- Vernon Hills 31
- Washington Park 31
- Wheeling 31
- Winnetka 31
- Antioch 30
- Arlington Heights 30
- Ashburn 30
- Auburn Gresham 30
- Barrington 30
- Beach Park 30
- Bellwood 30
- Belmont Cragin 30
- Bensenville 30
- Berkeley 30
- Berwyn 30
- Bridgeport 30
- Bridgeview 30
- Brighton Park 30
- Broadview 30
- Brookfield 30
- Burbank 30
- Channel Lake 30
- Chatham 30
- Chicago Lawn 30
- Chicago Loop 30
- Douglas 30
- East Garfield Park 30
- Elmwood Park 30
- Englewood 30
- Evergreen Park 30
- Forest Lake 30
- Forest Park 30
- Fox Lake 30
- Fox Lake Hills 30
- Franklin Park 30
- Gage Park 30
- Grand Boulevard 30
- Grandwood Park 30
- Greater Grand Crossing 30
- Gurnee 30
- Harwood Heights 30
- Hillside 30
- Hometown 30
- Hyde Park 30
- Inverness 30
- Island Lake 30
- Johnsburg 30
- Kenwood 30
- Kildeer 30
- La Grange Park 30
- Lake Barrington 30
- Lake Catherine 30
- Lake Villa 30
- Lake Zurich 30
- Lakemoor 30
- Lisle 30
- Long Lake 30
- Lower West Side 30
- Mahomet 30
- Maywood 30
- McCullom Lake 30
- McKinley Park 30
- Melrose Park 30
- Mount Prospect 30
- Near North Side 30
- Near South Side 30
- New City 30
- Norridge 30
- North Barrington 30
- North Lawndale 30
- North Riverside 30
- Northlake 30
- Pistakee Highlands 30
- Port Barrington 30
- River Grove 30
- Riverside 30
- Rolling Meadows 30
- Rosemont 30
- Round Lake 30
- Round Lake Beach 30
- Round Lake Park 30
- South Lawndale 30
- South Shore 30
- Spring Grove 30
- Stickney 30
- Stone Park 30
- Summit 30
- Third Lake 30
- Tower Lake 30
- Urbana 30
- Venetian Village 30
- Volo 30
- Wadsworth 30
- Wauconda 30
- Waukegan 30
- Waverly 30
- West Elsdon 30
- West Englewood 30
- West Garfield Park 30
- West Lawn 30
- West Town 30
- Westchester 30
- Wilmington 30
- Woodlawn 30
- Addison 29
- Algonquin 29
- Barrington Hills 29
- Bartlett 29
- Batavia 29
- Bloomingdale 29
- Blue Island 29
- Bolingbrook 29
- Boulder Hill 29
- Bull Valley 29
- Burnham 29
- Burr Ridge 29
- Calumet City 29
- Calumet Park 29
- Carol Stream 29
- Carpentersville 29
- Chicago Heights 29
- Chicago Ridge 29
- Clarendon Hills 29
- Country Club Hills 29
- Countryside 29
- Crest Hill 29
- Crestwood 29
- Crystal Lake 29
- Crystal Lawns 29
- Darien 29
- Dixmoor 29
- Dolton 29
- Downers Grove 29
- East Dundee 29
- East Hazel Crest 29
- Elgin 29
- Elmhurst 29
- Fairmont 29
- Flossmoor 29
- Fox River Grove 29
- Frankfort 29
- Frankfort Square 29
- Geneva 29
- Gilberts 29
- Girard 29
- Glen Ellyn 29
- Glendale Heights 29
- Glenwood 29
- Goodings Grove 29
- Hampshire 29
- Hanover Park 29
- Harvey 29
- Hazel Crest 29
- Hebron 29
- Hickory Hills 29
- Hinsdale 29
- Hodgkins 29
- Hoffman Estates 29
- Homer 29
- Homer Glen 29
- Huntley 29
- Indian Head Park 29
- Ingalls Park 29
- Itasca 29
- Justice 29
- La Grange 29
- Lake in the Hills 29
- Lakewood 29
- Lily Lake 29
- Lockport 29
- Lombard 29
- Markham 29
- Matteson 29
- Merrionette Park 29
- Midlothian 29
- Mokena 29
- Montgomery 29
- Morgan Park 29
- Mount Greenwood 29
- New Lenox 29
- North Aurora 29
- Northbrook 29
- Oak Brook 29
- Oak Forest 29
- Oak Lawn 29
- Oakbrook Terrace 29
- Oakwood Hills 29
- Olympia Fields 29
- Orland Hills 29
- Orland Park 29
- Palos Heights 29
- Palos Hills 29
- Palos Park 29
- Park Forest 29
- Phoenix 29
- Pingree Grove 29
- Plainfield 29
- Posen 29
- Prairie Grove 29
- Richmond 29
- Richton Park 29
- Riverdale 29
- Robbins 29
- Romeoville 29
- Roselle 29
- Schaumburg 29
- Sleepy Hollow 29
- South Barrington 29
- South Chicago 29
- South Elgin 29
- South Holland 29
- Stockton 29
- Thornton 29
- Tinley Park 29
- Vandalia 29
- Villa Park 29
- Village of Campton Hills 29
- Virginia 29
- Warrenville 29
- Wasco 29
- Wayne 29
- West Chicago 29
- West Dundee 29
- Western Springs 29
- Westmont 29
- Willow Springs 29
- Willowbrook 29
- Winfield 29
- Wonder Lake 29
- Wood Dale 29
- Woodridge 29
- Worth 29
- Zion 29
- Beecher 28
- Big Rock 28
- Capron 28
- Champaign 28
- Cortland 28
- Crete 28
- Elburn 28
- Ford Heights 28
- Genoa 28
- Harvard 28
- Kingston 28
- Lake Forest 28
- Lansing 28
- Lynwood 28
- Manhattan 28
- Maple Park 28
- McHenry 28
- Monee 28
- Oswego 28
- Palestine 28
- Park City 28
- Peotone 28
- Poplar Grove 28
- Prestbury 28
- Preston Heights 28
- Rockdale 28
- Sauk Village 28
- Savoy 28
- South Chicago Heights 28
- Steger 28
- Sugar Grove 28
- Sycamore 28
- University Park 28
- Virden 28
- West Ridge 28
- West Union 28
- Yorkville 28
- Arthur 27
- Bellevue 27
- Belvidere 27
- Bethany 27
- Cerro Gordo 27
- Channahon 27
- Decatur 27
- Elwood 27
- Forsyth 27
- Grant Park 27
- Harristown 27
- Hinckley 27
- Long Creek 27
- Lovington 27
- Macon 27
- Marshall 27
- Mattoon 27
- Minooka 27
- Momence 27
- Mount Zion 27
- Paris 27
- Peoria 27
- Plano 27
- Robinson 27
- Sullivan 27
- Warrensburg 27
- Windsor 27
- Altamont 26
- Arcola 26
- Atwood 26
- Bement 26
- Blue Mound 26
- Casey 26
- Chrisman 26
- Clinton 26
- DeKalb 26
- Effingham 26
- Greenup 26
- Maroa 26
- Martinsville 26
- Moweaqua 26
- Neoga 26
- Newton 26
- Oblong 26
- Peoria Heights 26
- Roscoe 26
- Saint Elmo 26
- South Beloit 26
- Teutopolis 26
- Toledo 26
- Astoria 25
- Atlanta 25
- Auburn 25
- Catlin 25
- Cherry Valley 25
- Creve Coeur 25
- Danvers 25
- Danville 25
- Delavan 25
- Georgetown 25
- Heritage Lake 25
- Heyworth 25
- Homewood 25
- Kirkland 25
- Lincoln 25
- Mackinaw 25
- Macomb 25
- Malta 25
- Marquette Heights 25
- Minier 25
- Morton 25
- Mount Pulaski 25
- North Pekin 25
- Pekin 25
- Sandwich 25
- Shelbyville 25
- Sheldon 25
- South Pekin 25
- Tilton 25
- Tremont 25
- Westville 25
- Ashland 24
- Assumption 24
- Bartonville 24
- Bloomington 24
- Bourbonnais 24
- Bradley 24
- Cambridge 24
- Carbon Cliff 24
- Coal Valley 24
- Colona 24
- Davis Junction 24
- East Moline 24
- East Peoria 24
- Erie 24
- Eureka 24
- Fulton 24
- Galva 24
- Geneseo 24
- Germantown Hills 24
- Glasford 24
- Green Rock 24
- Hampton 24
- Hanna City 24
- Highland 24
- Jerseyville 24
- Lake Camelot 24
- Lakewood Shores 24
- Manito 24
- Mason City 24
- Monticello 24
- Normal 24
- North Peoria 24
- Orion 24
- Port Byron 24
- Ramsey 24
- Rockton 24
- Silvis 24
- Somonauk 24
- Springfield 24
- Stillman Valley 24
- Tuscola 24
- Twin Grove 24
- Washington 24
- Waterman 24
- West Peoria 24
- Winnebago 24
- Abingdon 23
- Amboy 23
- Athens 23
- Braidwood 23
- Byron 23
- Canton 23
- Chebanse 23
- Diamond 23
- Divernon 23
- Dixon 23
- Dwight 23
- Earlville 23
- East Saint Louis 23
- Edinburg 23
- El Paso 23
- Elmwood 23
- Farmer City 23
- Farmington 23
- Freeport 23
- Galesburg 23
- Gardner 23
- Havana 23
- Herscher 23
- Hillcrest 23
- Hoopeston 23
- Hudson 23
- Kankakee 23
- Kincaid 23
- Knoxville 23
- Lake Holiday 23
- Lake Summerset 23
- Lanark 23
- Le Roy 23
- Lewistown 23
- Limestone 23
- Marseilles 23
- McLeansboro 23
- Mendota 23
- Metamora 23
- Milan 23
- Moline 23
- Morris 23
- Morrison 23
- Morrisonville 23
- Mount Carroll 23
- Mount Morris 23
- New Berlin 23
- Oakwood 23
- Oregon 23
- Ottawa 23
- Pana 23
- Pecatonica 23
- Petersburg 23
- Polo 23
- Prophetstown 23
- Riverton 23
- Rochelle 23
- Rock Falls 23
- Rock Island 23
- Rossville 23
- Saint Anne 23
- Savanna 23
- Seneca 23
- Sheridan 23
- Sherman 23
- Sterling 23
- Taylorville 23
- Thomasboro 23
- Villa Grove 23
- Walnut 23
- Williamsville 23
- Bushnell 22
- Chatsworth 22
- Chenoa 22
- Chillicothe 22
- Clifton 22
- Colfax 22
- Cuba 22
- Deer Park 22
- Depue 22
- Dunlap 22
- East Dubuque 22
- Fairbury 22
- Fisher 22
- Flanagan 22
- Forrest 22
- Forreston 22
- Galena 22
- Gibson City 22
- Gifford 22
- Gilman 22
- Grandview 22
- Granville 22
- Gridley 22
- Hennepin 22
- Jerome 22
- Kewanee 22
- Ladd 22
- Lake of the Woods 22
- Leland Grove 22
- Lena 22
- Lexington 22
- Milford 22
- Minonk 22
- Monmouth 22
- Nokomis 22
- Oglesby 22
- Onarga 22
- Oquawka 22
- Pawnee 22
- Paxton 22
- Peru 22
- Philo 22
- Pontiac 22
- Princeton 22
- Princeville 22
- Rantoul 22
- Roanoke 22
- Rochester 22
- Rome 22
- Saint Joseph 22
- Sidney 22
- Southern View 22
- Spring Valley 22
- Streator 22
- The Galena Territory 22
- Tolono 22
- Toluca 22
- Toulon 22
- Warren 22
- Washburn 22
- Watseka 22
- Andalusia 21
- Henry 21
- La Salle 21
- Lacon 21
- Sparta 21
- Wood River 21
- Wyoming 21
- Aledo 20
- Cobden 20
- Charleston 19
- Durand 19
- Lebanon 19
- Crainville 18
- Granite City 17
- Hartford 17
- Marengo 8
- Newark 8
- Elk Grove Village 7
- Venice 6
AQI US, Metric