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Air quality in Illinois
Air quality index (AQI) and PM2.5 air pollution in Illinois
AIR QUALITY DATA CONTRIBUTORS
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Illinois air quality data attribution
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Which is the most polluted city in Illinois?
- Albion 57
- Grayville 57
- Lawrenceville 57
- Mount Carmel 57
- Newton 57
- Olney 57
- Sumner 57
- Casey 56
- Effingham 56
- Flora 56
- Greenup 56
- Louisville 56
- Neoga 56
- Oblong 56
- Palestine 56
- Robinson 56
- Teutopolis 56
- Toledo 56
- Altamont 55
- Carmi 55
- Fairfield 55
- Martinsville 55
- Norris City 55
- Wayne City 55
- Arcola 54
- Arthur 54
- Assumption 54
- Atwood 54
- Bethany 54
- Blue Mound 54
- Cerro Gordo 54
- Eldorado 54
- Long Creek 54
- Lovington 54
- Macon 54
- Mattoon 54
- Mount Zion 54
- Moweaqua 54
- Pana 54
- Ramsey 54
- Saint Elmo 54
- Shawneetown 54
- Shelbyville 54
- Sullivan 54
- Windsor 54
- Atlanta 53
- Bartonville 53
- Bement 53
- Bloomington 53
- Carrier Mills 53
- Chenoa 53
- Chillicothe 53
- Clinton 53
- Creve Coeur 53
- Dunlap 53
- East Peoria 53
- El Paso 53
- Elizabethtown 53
- Eureka 53
- Flanagan 53
- Forsyth 53
- Germantown Hills 53
- Gridley 53
- Hanna City 53
- Harrisburg 53
- Harristown 53
- Heritage Lake 53
- Heyworth 53
- Hudson 53
- Lacon 53
- Lexington 53
- Lincoln 53
- Mackinaw 53
- Maroa 53
- Marquette Heights 53
- Marshall 53
- Metamora 53
- Minier 53
- Minonk 53
- Monticello 53
- Morton 53
- Mount Pulaski 53
- Mount Vernon 53
- North Pekin 53
- North Peoria 53
- Pekin 53
- Peoria Heights 53
- Roanoke 53
- Rome 53
- Rosiclare 53
- Salem 53
- Toluca 53
- Tremont 53
- Tuscola 53
- Twin Grove 53
- Vandalia 53
- Warrensburg 53
- Washburn 53
- Washington 53
- West Peoria 53
- Beckemeyer 52
- Benton 52
- Canton 52
- Carlyle 52
- Central City 52
- Centralia 52
- Colfax 52
- Delavan 52
- Elmwood 52
- Farmer City 52
- Farmington 52
- Glasford 52
- Golconda 52
- Greenville 52
- Havana 52
- Henry 52
- Ina 52
- Lake Camelot 52
- Le Roy 52
- Manito 52
- Mason City 52
- Nokomis 52
- Odin 52
- Paris 52
- Petersburg 52
- Princeville 52
- Sandoval 52
- Sesser 52
- South Pekin 52
- Taylorville 52
- Villa Grove 52
- Wamac 52
- Wyoming 52
- Alton 51
- Ashland 51
- Astoria 51
- Athens 51
- Auburn 51
- Beardstown 51
- Benld 51
- Bethalto 51
- Breese 51
- Brighton 51
- Bunker Hill 51
- Carlinville 51
- Carrollton 51
- Chrisman 51
- Cuba 51
- Divernon 51
- East Alton 51
- Edinburg 51
- Edwardsville 51
- Fairbury 51
- Gillespie 51
- Girard 51
- Godfrey 51
- Grandview 51
- Hillsboro 51
- Holiday Shores 51
- Jerome 51
- Kincaid 51
- Leland Grove 51
- Lewistown 51
- Litchfield 51
- Morrisonville 51
- Mount Olive 51
- Pawnee 51
- Philo 51
- Pocahontas 51
- Pontiac 51
- Riverton 51
- Rochester 51
- Roodhouse 51
- Rosewood Heights 51
- Roxana 51
- Saint Jacob 51
- Sherman 51
- South Roxana 51
- Southern View 51
- Staunton 51
- Tolono 51
- Toulon 51
- Upper Alton 51
- Virden 51
- Virginia 51
- West Frankfort 51
- White Hall 51
- Williamsville 51
- Worden 51
- Gibson City 50
- Glen Carbon 50
- Greenfield 50
- Jacksonville 50
- Lake of the Woods 50
- Mitchell 50
- Pontoon Beach 50
- Sidney 50
- South Jacksonville 50
- Streator 50
- Troy 50
- Waverly 50
- Winchester 50
- Camp Point 49
- Catlin 49
- Christopher 49
- Dwight 49
- Fisher 49
- Forrest 49
- Galva 49
- Georgetown 49
- Griggsville 49
- Hennepin 49
- Johnston City 49
- Kewanee 49
- Macomb 49
- Maryville 49
- Meredosia 49
- Metropolis 49
- Mount Sterling 49
- Nashville 49
- Rantoul 49
- Rushville 49
- Saint Joseph 49
- Thomasboro 49
- Vienna 49
- Westville 49
- Abingdon 48
- Aviston 48
- Barry 48
- Bushnell 48
- Cambria 48
- Cambridge 48
- Carterville 48
- Caseyville 48
- Chatsworth 48
- Colchester 48
- Collinsville 48
- Colona 48
- Crainville 48
- De Soto 48
- Du Quoin 48
- Energy 48
- Erie 48
- Fairmont City 48
- Galesburg 48
- Gardner 48
- Geneseo 48
- Germantown 48
- Goreville 48
- Granville 48
- Green Rock 48
- Hardin 48
- Herrin 48
- Herscher 48
- Knoxville 48
- Madison 48
- Marion 48
- Marseilles 48
- Mound City 48
- O'Fallon 48
- Oakwood 48
- Orion 48
- Paxton 48
- Pittsfield 48
- Prophetstown 48
- Royalton 48
- Seneca 48
- Trenton 48
- Zeigler 48
- Albers 47
- Aledo 47
- Alorton 47
- Andalusia 47
- Anna 47
- Belleville 47
- Braidwood 47
- Cahokia 47
- Cairo 47
- Carbon Cliff 47
- Carbondale 47
- Carthage 47
- Centreville 47
- Clifton 47
- Coal Valley 47
- Danville 47
- Deer Park 47
- Depue 47
- Diamond 47
- East Moline 47
- Fairview Heights 47
- Fulton 47
- Gifford 47
- Gilman 47
- Hampton 47
- Hoopeston 47
- Jonesboro 47
- La Harpe 47
- Lemont 47
- Mascoutah 47
- McCook 47
- Milford 47
- Monmouth 47
- Morris 47
- Morrison 47
- Murphysboro 47
- New Baden 47
- Oglesby 47
- Okawville 47
- Onarga 47
- Oquawka 47
- Ottawa 47
- Pinckneyville 47
- Port Byron 47
- Princeton 47
- Rock Island 47
- Rossville 47
- Scott Air Force Base 47
- Shiloh 47
- Silvis 47
- Swansea 47
- Tilton 47
- Watseka 47
- Columbia 46
- Dupo 46
- Freeburg 46
- Hamilton 46
- Marissa 46
- Millstadt 46
- Nauvoo 46
- Peru 46
- Sheldon 46
- Smithton 46
- Spring Valley 46
- Steeleville 46
- Warsaw 46
- Channahon 45
- Chebanse 45
- Chester 45
- Dixon 45
- Ladd 45
- Lakewood Shores 45
- Minooka 45
- New Athens 45
- Payson 45
- Quincy 45
- Red Bud 45
- Rock Falls 45
- Sheridan 45
- Sterling 45
- Walnut 45
- Waterloo 45
- Addison 44
- Amboy 44
- Ashburn 44
- Batavia 44
- Bellwood 44
- Bensenville 44
- Berkeley 44
- Berwyn 44
- Big Rock 44
- Bloomingdale 44
- Bolingbrook 44
- Boulder Hill 44
- Bourbonnais 44
- Bradley 44
- Bridgeport 44
- Bridgeview 44
- Brighton Park 44
- Broadview 44
- Brookfield 44
- Burbank 44
- Burr Ridge 44
- Carol Stream 44
- Chicago Lawn 44
- Chicago Ridge 44
- Clarendon Hills 44
- Countryside 44
- Crest Hill 44
- Crystal Lawns 44
- Darien 44
- Downers Grove 44
- Earlville 44
- East Garfield Park 44
- Elmhurst 44
- Elmwood Park 44
- Elwood 44
- Evergreen Park 44
- Fairmont 44
- Forest Park 44
- Frankfort 44
- Franklin Park 44
- Gage Park 44
- Geneva 44
- Glen Ellyn 44
- Glendale Heights 44
- Goodings Grove 44
- Grant Park 44
- Hickory Hills 44
- Hillside 44
- Hinckley 44
- Hinsdale 44
- Hodgkins 44
- Homer Glen 44
- Hometown 44
- Indian Head Park 44
- Ingalls Park 44
- Itasca 44
- Justice 44
- Kankakee 44
- La Grange Park 44
- Lake Holiday 44
- Lanark 44
- Limestone 44
- Lockport 44
- Logan Square 44
- Lombard 44
- Lower West Side 44
- Manhattan 44
- Maywood 44
- McKinley Park 44
- McLeansboro 44
- Melrose Park 44
- Mendota 44
- Mokena 44
- Momence 44
- Montgomery 44
- Mount Carroll 44
- Mount Greenwood 44
- Near South Side 44
- New Lenox 44
- Norridge 44
- North Aurora 44
- North Lawndale 44
- North Riverside 44
- Northlake 44
- Oak Brook 44
- Oak Lawn 44
- Oakbrook Terrace 44
- Orland Hills 44
- Oswego 44
- Palos Heights 44
- Palos Hills 44
- Palos Park 44
- Plainfield 44
- Plano 44
- Polo 44
- Prestbury 44
- Preston Heights 44
- River Grove 44
- Riverside 44
- Rockdale 44
- Romeoville 44
- Roselle 44
- Saint Anne 44
- Sandwich 44
- Savanna 44
- Somonauk 44
- South Lawndale 44
- Stickney 44
- Stone Park 44
- Sugar Grove 44
- Summit 44
- Valmeyer 44
- Villa Park 44
- Warrenville 44
- Wayne 44
- West Chicago 44
- West Elsdon 44
- West Garfield Park 44
- West Lawn 44
- West Town 44
- Westchester 44
- Western Springs 44
- Westmont 44
- Willow Springs 44
- Winfield 44
- Wood Dale 44
- Woodridge 44
- Worth 44
- Yorkville 44
- Albany Park 43
- Auburn Gresham 43
- Avondale 43
- Bartlett 43
- Beecher 43
- Belmont Cragin 43
- Blue Island 43
- Burnham 43
- Byron 43
- Calumet City 43
- Calumet Park 43
- Chatham 43
- Chicago Heights 43
- Chicago Loop 43
- Cortland 43
- Country Club Hills 43
- Crestwood 43
- Crete 43
- Davis Junction 43
- Dixmoor 43
- Dolton 43
- Douglas 43
- East Dubuque 43
- East Hazel Crest 43
- Edgewater 43
- Elburn 43
- Elgin 43
- Englewood 43
- Flossmoor 43
- Ford Heights 43
- Forreston 43
- Frankfort Square 43
- Freeport 43
- Galena 43
- Genoa 43
- Glenwood 43
- Grand Boulevard 43
- Greater Grand Crossing 43
- Hampshire 43
- Hanover Park 43
- Harvey 43
- Harwood Heights 43
- Hazel Crest 43
- Hillcrest 43
- Hoffman Estates 43
- Hyde Park 43
- Irving Park 43
- Kenwood 43
- Kingston 43
- Kirkland 43
- Lake Summerset 43
- Lena 43
- Lily Lake 43
- Lincoln Park 43
- Lincoln Square 43
- Lincolnwood 43
- Lynwood 43
- Malta 43
- Maple Park 43
- Markham 43
- Matteson 43
- Merrionette Park 43
- Midlothian 43
- Monee 43
- Morgan Park 43
- Morton Grove 43
- Mount Morris 43
- Near North Side 43
- New City 43
- Niles 43
- North Center 43
- Oak Forest 43
- Olympia Fields 43
- Park Forest 43
- Park Ridge 43
- Pecatonica 43
- Phoenix 43
- Pingree Grove 43
- Portage Park 43
- Posen 43
- Richton Park 43
- Riverdale 43
- Robbins 43
- Rochelle 43
- Rogers Park 43
- Rosemont 43
- Sauk Village 43
- Schaumburg 43
- South Chicago 43
- South Chicago Heights 43
- South Elgin 43
- South Holland 43
- South Shore 43
- Steger 43
- Stillman Valley 43
- Stockton 43
- Sycamore 43
- The Galena Territory 43
- Thornton 43
- Tinley Park 43
- University Park 43
- Uptown 43
- Village of Campton Hills 43
- Warren 43
- Wasco 43
- Waterman 43
- West Englewood 43
- Woodlawn 43
- Algonquin 42
- Arlington Heights 42
- Bannockburn 42
- Barrington 42
- Barrington Hills 42
- Beach Park 42
- Belvidere 42
- Buffalo Grove 42
- Carpentersville 42
- Cherry Valley 42
- Deerfield 42
- East Dundee 42
- Forest Lake 42
- Fox River Grove 42
- Gilberts 42
- Glencoe 42
- Glenview 42
- Green Oaks 42
- Gurnee 42
- Hawthorn Woods 42
- Highland Park 42
- Highwood 42
- Huntley 42
- Inverness 42
- Kenilworth 42
- Kildeer 42
- Knollwood 42
- Lake Barrington 42
- Lake Bluff 42
- Lake in the Hills 42
- Lake Zurich 42
- Lakewood 42
- Lincolnshire 42
- Long Grove 42
- Mount Prospect 42
- Mundelein 42
- North Barrington 42
- North Chicago 42
- Northfield 42
- Oakwood Hills 42
- Oregon 42
- Poplar Grove 42
- Port Barrington 42
- Prospect Heights 42
- Riverwoods 42
- Rockton 42
- Rolling Meadows 42
- Roscoe 42
- Sleepy Hollow 42
- South Barrington 42
- South Beloit 42
- Tower Lake 42
- Vernon Hills 42
- Waukegan 42
- West Dundee 42
- Wheeling 42
- Winnebago 42
- Winnetka 42
- Winthrop Harbor 42
- Zion 42
- Antioch 41
- Bull Valley 41
- Capron 41
- Channel Lake 41
- Crystal Lake 41
- Fox Lake 41
- Fox Lake Hills 41
- Gages Lake 41
- Grandwood Park 41
- Hainesville 41
- Harvard 41
- Hebron 41
- Island Lake 41
- Johnsburg 41
- Lake Catherine 41
- Lake Villa 41
- Lakemoor 41
- Long Lake 41
- McCullom Lake 41
- Pistakee Highlands 41
- Prairie Grove 41
- Richmond 41
- Round Lake 41
- Round Lake Beach 41
- Round Lake Park 41
- Spring Grove 41
- Third Lake 41
- Urbana 41
- Venetian Village 41
- Volo 41
- Wadsworth 41
- Wauconda 41
- Wonder Lake 41
- Woodstock 41
- Homer 39
- Cicero 38
- Champaign 37
- Mahomet 37
- Coal City 35
- River Forest 35
- West Union 35
- Cobden 34
- Peoria 34
- Palatine 33
- Sparta 33
- Round Lake Heights 32
- Loves Park 31
- Saint Charles 31
- Springfield 30
- Streamwood 30
- Grayslake 29
- Lindenhurst 29
- Milan 29
- Moline 29
- Naperville 29
- Oak Park 29
- Washington Park 29
- Chicago 28
- Machesney Park 28
- McHenry 28
- Savoy 28
- Schiller Park 28
- Bellevue 27
- Decatur 27
- Lisle 27
- Rockford 27
- Cary 26
- Danvers 26
- East Saint Louis 26
- Lyons 26
- Normal 26
- Northbrook 26
- Park City 26
- Shorewood 26
- Union Hill 26
- Wilmington 26
- Aurora 25
- Des Plaines 25
- Evanston 25
- Lansing 25
- Skokie 25
- Wilmette 25
- Joliet 24
- Manteno 24
- New Berlin 24
- West Ridge 24
- DeKalb 23
- Granite City 23
- Lake Forest 23
- Libertyville 23
- Willowbrook 23
- Jerseyville 22
- Alsip 21
- Homewood 21
- Wood River 21
- Orland Park 20
- Wheaton 20
- Peotone 18
- La Salle 16
- Durand 15
- Marengo 14
- Newark 14
- La Grange 13
- Venice 10
- Charleston 9
- Elk Grove Village 7
- Hartford 7
- Highland 6
- Lebanon 6
AQI US, Metric