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 Pennsylvania
Air quality index (AQI) and PM2.5 air pollution in Pennsylvania
LIVE AQI CITY RANKING
Real-time Pennsylvania
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Coatesville | 153 |
| 2 | Erie | 68 |
| 3 | Beaver Falls | 53 |
| 4 | Coraopolis | 53 |
| 5 | Emsworth | 53 |
| 6 | Franklin Park | 53 |
| 7 | Aliquippa | 52 |
| 8 | Monaca | 52 |
| 9 | Sharpsburg | 52 |
| 10 | Beaver | 51 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
338 Contributors
See all
LIVE AQI CITY RANKING
Real-time Pennsylvania
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Uniontown | 0 |
| 2 | Charleroi | 1 |
| 3 | Elizabethville | 1 |
| 4 | Honesdale | 1 |
| 5 | Canton | 3 |
| 6 | Boiling Springs | 4 |
| 7 | Garden View | 4 |
| 8 | Mechanicsburg | 6 |
| 9 | Milton | 6 |
| 10 | Williamsport | 6 |
(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.
Pennsylvania air quality data attribution
338Contributors
- Allegheny County Health Department
7 stations
2 Government Contributors
- Keller’s
1 station
Educational Contributor
- Nels Shirer
1 station
- LWP
1 station
- armacg
1 station
- Kurt S
1 station
- fiorill
1 station
- Richard Seavey
1 station
- miner18925
1 station
OKey1 station
- Ta Ma
1 station
- Bill Fenner
1 station
- Jeff Wiggins
1 station
- JH
1 station
Rick Evans1 station
Anonymous1 station
14 Individual Contributors
321 Anonymous contributors321 stations
321 Anonymous Contributors
Which is the most polluted city in Pennsylvania?
- Coatesville 153
- Erie 68
- Bessemer 54
- North East 54
- Ohioville 54
- Slippery Rock 54
- Ashley 53
- Avoca 53
- Beaver Falls 53
- Beech Mountain Lakes 53
- Big Bass Lake 53
- Big Beaver 53
- Brodheadsville 53
- Browntown 53
- Cherryville 53
- Chinchilla 53
- Clarks Summit 53
- Coaldale 53
- Conyngham 53
- Coraopolis 53
- Dupont 53
- Duryea 53
- East Stroudsburg 53
- Edwardsville 53
- Effort 53
- Ellwood City 53
- Emerald Lakes 53
- Emsworth 53
- Exeter 53
- Forty Fort 53
- Franklin Park 53
- Freeland 53
- Georgetown 53
- Harleigh 53
- Hazleton 53
- Hilldale 53
- Hometown 53
- Hudson 53
- Hughestown 53
- Indian Mountain Lake 53
- Inkerman 53
- Jermyn 53
- Kingston 53
- Laflin 53
- Lake City 53
- Lansford 53
- Larksville 53
- Mayfield 53
- McAdoo 53
- Midland 53
- Moosic 53
- Moscow 53
- Mount Cobb 53
- Mount Pocono 53
- Mountain Top 53
- Mountainhome 53
- Nanticoke 53
- Nesquehoning 53
- New Beaver 53
- Northwest Harborcreek 53
- Oakwood 53
- Old Forge 53
- Olyphant 53
- Palmerton 53
- Peckville 53
- Pittston 53
- Plains 53
- Plymouth 53
- Robesonia 53
- Sierra View 53
- Slatington 53
- Summit Hill 53
- Sun Valley 53
- Swoyersville 53
- Tamaqua 53
- Taylor 53
- The Hideout 53
- Towamensing Trails 53
- Trucksville 53
- Wallenpaupack Lake Estates 53
- Walnutport 53
- Weatherly 53
- Weissport East 53
- Wesleyville 53
- West Hazleton 53
- West Mayfield 53
- West Pittston 53
- West Wyoming 53
- White Haven 53
- Wyoming 53
- Aliquippa 52
- Arlington Heights 52
- Avonia 52
- Back Mountain 52
- Berwick 52
- Carbondale 52
- Cementon 52
- Clarks Green 52
- Conway 52
- Coplay 52
- Dalton 52
- East Berwick 52
- Egypt 52
- Ellport 52
- Fairview 52
- Forest City 52
- Frackville 52
- Girard 52
- Girardville 52
- Glen Lyon 52
- Hermitage 52
- Laurys Station 52
- Mahanoy City 52
- Mifflinville 52
- Monaca 52
- Nescopeck 52
- New Castle Northwest 52
- New Philadelphia 52
- New Wilmington 52
- Orwigsburg 52
- Palo Alto 52
- Penn Estates 52
- Port Carbon 52
- Saylorsburg 52
- Schnecksville 52
- Sharon 52
- Sharpsburg 52
- Sharpsville 52
- Shavertown 52
- Shenandoah 52
- Shenandoah Heights 52
- Simpson 52
- Stiles 52
- Stroudsburg 52
- Waymart 52
- Whitehall Township 52
- Wind Gap 52
- Youngsville 52
- Zelienople 52
- Almedia 51
- Ambridge 51
- Ashland 51
- Avis 51
- Beaver 51
- Bellevue 51
- Castanea 51
- Catasauqua 51
- Conashaugh Lakes 51
- Cranberry Township 51
- Cressona 51
- Dewart 51
- Duboistown 51
- Dunnstown 51
- Duquesne 51
- Economy 51
- Espy 51
- Evans City 51
- Faxon 51
- Fernway 51
- Flemington 51
- Fox Run 51
- Gold Key Lake 51
- Grove City 51
- Hamburg 51
- Hemlock Farms 51
- Hokendauqua 51
- Homeacre-Lyndora 51
- Hughesville 51
- Kenmar 51
- Lake Wynonah 51
- Laporte 51
- Leetsdale 51
- Light Street 51
- Lock Haven 51
- Mars 51
- Mercer 51
- Meridian 51
- Mill Hall 51
- Minersville 51
- Montgomery 51
- Montoursville 51
- Muncy 51
- North Catasauqua 51
- Pottsville 51
- Reynolds Heights 51
- Roseto 51
- Saw Creek 51
- Schuylkill Haven 51
- Seven Fields 51
- Shanor-Northvue 51
- South Williamsport 51
- Sunrise Lake 51
- Watsontown 51
- West Hamburg 51
- Belfast 50
- Carnot-Moon 50
- Catawissa 50
- Danville 50
- Eastlawn Gardens 50
- Enlow 50
- Fullerton 50
- Lake Latonka 50
- Linntown 50
- McDonald 50
- Meadowood 50
- Mechanicsville 50
- Mifflinburg 50
- Mount Carmel 50
- New Columbia 50
- Nixon 50
- Oak Hills 50
- Pine Ridge 50
- Riverside 50
- Towanda 50
- Albion 49
- Allison Park 49
- Bakerstown 49
- Bellefonte 49
- Boalsburg 49
- Centre Hall 49
- Cetronia 49
- Chicora 49
- Curtisville 49
- Elysburg 49
- Gibsonia 49
- Greenville 49
- Houserville 49
- Imperial 49
- Kulpmont 49
- Kutztown 49
- Lemont 49
- McKees Rocks 49
- Milesburg 49
- Milroy 49
- Nazareth 49
- Oakdale 49
- Park Forest Village 49
- Pleasant Gap 49
- Pocono Ranch Lands 49
- Rochester 49
- Saxonburg 49
- Shoemakersville 49
- Stoneboro 49
- Sturgeon 49
- Toftrees 49
- West View 49
- Woodside 49
- Wyomissing 49
- Zion 49
- Annville 48
- Arnold 48
- Aspinwall 48
- Belleville 48
- Blawnox 48
- Bloomfield 48
- Blossburg 48
- Brackenridge 48
- Bradford 48
- Breinigsville 48
- Bridgeville 48
- Burnham 48
- Campbelltown 48
- Cecil-Bishop 48
- Church Hill 48
- Cleona 48
- Cornwall 48
- Crafton 48
- Dormont 48
- Etna 48
- Fairview-Ferndale 48
- Forest Hills 48
- Foster Brook 48
- Fox Chapel 48
- Franklin 48
- Fredericksburg 48
- Fredericktown 48
- Freeport 48
- Green Tree 48
- Hallstead 48
- Hebron 48
- Heidelberg 48
- Highland Park 48
- Hummels Wharf 48
- Ingram 48
- Jonestown 48
- Landisville 48
- Lebanon South 48
- Leesport 48
- Lewistown 48
- Marietta 48
- Marshallton 48
- Maytown 48
- Middleburg 48
- Mifflintown 48
- Millvale 48
- Mount Joy 48
- Mountville 48
- Muse 48
- Myerstown 48
- Newmanstown 48
- North Warren 48
- Oakmont 48
- Palmdale 48
- Palmyra 48
- Penryn 48
- Pine Grove 48
- Pine Grove Mills 48
- Pleasant Hill 48
- Pymatuning Central 48
- Ramblewood 48
- Rennerdale 48
- Rheems 48
- Richland 48
- Russell 48
- Russellton 48
- Salunga 48
- Sand Hill 48
- Sandy Lake 48
- Seneca 48
- Shamokin 48
- Shamokin Dam 48
- Skyline View 48
- Sugarcreek 48
- Sunbury 48
- Tarentum 48
- Tipton 48
- Tower City 48
- Tremont 48
- Trevorton 48
- Troy 48
- Tyrone 48
- Warren 48
- Williamstown 48
- Woodland Heights 48
- Wrightsville 48
- Yeagertown 48
- Akron 47
- Athens 47
- Baden 47
- Bainbridge 47
- Bellwood 47
- Bethel Park 47
- Blandon 47
- Brentwood 47
- Bressler 47
- Brickerville 47
- Brogue 47
- Brownstown 47
- Bryn Mawr 47
- Cambridge Springs 47
- Castle Shannon 47
- Cheswick 47
- Churchill 47
- Clay 47
- Cochranton 47
- Colonial Park 47
- Conestoga 47
- Conneaut Lakeshore 47
- Dallastown 47
- Dillsburg 47
- Dorneyville 47
- Dover 47
- Duncansville 47
- East Berlin 47
- East Washington 47
- East York 47
- Edgewood 47
- Edinboro 47
- Emigsville 47
- Enhaut 47
- Enola 47
- Factoryville 47
- Fleetwood 47
- Fox Chase 47
- Grantley 47
- Greenwood 47
- Hallam 47
- Hasson Heights 47
- Highspire 47
- Hollidaysburg 47
- Hummelstown 47
- Knox 47
- Lake Meade 47
- Lakemont 47
- Lawnton 47
- Lawrence Park 47
- Lemoyne 47
- Lenape Heights 47
- Lititz 47
- Lower Allen 47
- Lower Burrell 47
- Lykens 47
- Manchester 47
- Marianne 47
- Marysville 47
- McConnellstown 47
- McGovern 47
- Millersville 47
- Mount Holly Springs 47
- Mount Oliver 47
- Mount Union 47
- Mount Wolf 47
- Munhall 47
- New Cumberland 47
- New Kensington 47
- Newville 47
- North York 47
- Oil City 47
- Osceola Mills 47
- Paxtang 47
- Paxtonia 47
- Penbrook 47
- Penn Hills 47
- Philipsburg 47
- Progress 47
- Rankin 47
- Red Lion 47
- Renovo 47
- River View Park 47
- Rothsville 47
- Royalton 47
- Rutherford 47
- Schoeneck 47
- Sheffield 47
- Shiloh 47
- Shiremanstown 47
- Spry 47
- Stonybrook 47
- Swissvale 47
- Tatamy 47
- Thompsonville 47
- Tionesta 47
- Titusville 47
- Trexlertown 47
- Valley Green 47
- Valley View 47
- Verona 47
- Weigelstown 47
- Wernersville 47
- Wescosville 47
- West Fairview 47
- West Hills 47
- West Kittanning 47
- West York 47
- Williamsburg 47
- Willow Street 47
- Windsor 47
- Womelsdorf 47
- Wormleysburg 47
- Yoe 47
- Yorklyn 47
- Abbottstown 46
- Alburtis 46
- Ancient Oaks 46
- Apollo 46
- Bonneauville 46
- Braddock 46
- Chambersburg 46
- Clarion 46
- Claysburg 46
- Colony Park 46
- Corry 46
- Cresson 46
- Denver 46
- Dravosburg 46
- Duncannon 46
- East McKeesport 46
- East Pittsburgh 46
- Ebensburg 46
- Ephrata 46
- Fayetteville 46
- Gallitzin 46
- Glen Rock 46
- Greenfields 46
- Guilford 46
- Guilford Siding 46
- Hanover 46
- Hastings 46
- Hyde Park 46
- Industry 46
- Jacobus 46
- Kane 46
- Lake Heritage 46
- Lampeter 46
- Laureldale 46
- Leechburg 46
- Leola 46
- Level Green 46
- Liberty 46
- Loganville 46
- Loretto 46
- Mansfield 46
- Marienville 46
- Martinsburg 46
- Matamoras 46
- McConnellsburg 46
- McSherrystown 46
- Midway 46
- Millersburg 46
- Mont Alto 46
- Muhlenberg Park 46
- New Brighton 46
- New Oxford 46
- Newport 46
- North Apollo 46
- North Braddock 46
- North Versailles 46
- Orchard Hills 46
- Parkville 46
- Patton 46
- Pennville 46
- Pitcairn 46
- Pleasant Hills 46
- Plum 46
- Port Vue 46
- Portage 46
- Reamstown 46
- Reinholds 46
- Roaring Spring 46
- Sayre 46
- Scotland 46
- Sinking Spring 46
- Smethport 46
- South Park Township 46
- South Temple 46
- South Waverly 46
- Spring Grove 46
- Spring Ridge 46
- Stewartstown 46
- Swartzville 46
- Temple 46
- Topton 46
- Trafford 46
- Turtle Creek 46
- Union City 46
- Vandergrift 46
- Versailles 46
- Wellsboro 46
- West Homestead 46
- West Lawn 46
- West Leechburg 46
- Whitaker 46
- White Oak 46
- Whitfield 46
- Wilmerding 46
- Wilson 46
- Wyomissing Hills 46
- Adamstown 45
- Baidland 45
- Baldwin 45
- Barnesboro 45
- Beaverdale 45
- Black Lick 45
- Blairsville 45
- Bowmansville 45
- Brookville 45
- Carroll Valley 45
- Chevy Chase Heights 45
- Clearfield 45
- Clymer 45
- Conemaugh 45
- Curwensville 45
- Dale 45
- Delmont 45
- DuBois 45
- Earlston 45
- East Conemaugh 45
- Emmaus 45
- Everett 45
- Fivepointville 45
- Geistown 45
- Greencastle 45
- Greenock 45
- Homer City 45
- Hyde 45
- Intercourse 45
- Irwin 45
- Kenhorst 45
- Lincoln Park 45
- Manor 45
- Mercersburg 45
- Mohnton 45
- Monongahela 45
- Mount Pleasant 45
- Mundys Corner 45
- Nanty Glo 45
- New Castle 45
- New Eagle 45
- New Freedom 45
- Newtown Grant 45
- Northern Cambria 45
- Oakland 45
- Paradise 45
- Penfield 45
- Punxsutawney 45
- Quarryville 45
- Reynoldsville 45
- Salix 45
- Sandy 45
- Shillington 45
- Shinglehouse 45
- Shrewsbury 45
- Southmont 45
- Spangler 45
- State Line 45
- Susquehanna Trails 45
- Sykesville 45
- Terre Hill 45
- Vinco 45
- Wayne Heights 45
- West Reading 45
- West Wyomissing 45
- Wilcox 45
- Alleghenyville 44
- Bedford 44
- Belle Vernon 44
- Belmont 44
- Blue Ball 44
- Brockway 44
- Centerville 44
- Central City 44
- Davidsville 44
- Derry 44
- Donora 44
- East Earl 44
- Elim 44
- Elkland 44
- Emporium 44
- Falls Creek 44
- Fellsburg 44
- Ferndale 44
- Flying Hills 44
- Fountain Hill 44
- Furlong 44
- Grill 44
- Jerome 44
- Johnsonburg 44
- Latrobe 44
- Loyalhanna 44
- Lynnwood-Pricedale 44
- Monessen 44
- Mount Penn 44
- North Belle Vernon 44
- North Charleroi 44
- Palmer Heights 44
- Pennside 44
- Port Allegany 44
- Reiffton 44
- Ridgway 44
- Saint Lawrence 44
- Saint Marys 44
- South Greensburg 44
- Southwest Greensburg 44
- Speers 44
- Stony Creek Mills 44
- Treasure Lake 44
- West Easton 44
- Westmont 44
- Whitehall 44
- Wickerham Manor-Fisher 44
- Windber 44
- Boswell 43
- Brownsville 43
- Butler 43
- California 43
- Calumet 43
- Cochranville 43
- Coudersport 43
- Edgeworth 43
- Fairhope 43
- Freedom 43
- Galeton 43
- Gap 43
- Hiller 43
- Jacksonwald 43
- Lorane 43
- Luzerne 43
- Old Orchard 43
- Oley 43
- Perryopolis 43
- Westfield 43
- Youngwood 43
- Atglen 42
- Bradford Woods 42
- Burgettstown 42
- Christiana 42
- Fairdale 42
- Honey Brook 42
- Pittsburgh 42
- Raubsville 42
- Republic 42
- Amity Gardens 41
- Bally 41
- Bell Acres 41
- Berlin 41
- Birdsboro 41
- Connellsville 41
- Dunbar 41
- Elverson 41
- Farrell 41
- Masontown 41
- Milford 41
- Oliver 41
- Parkesburg 41
- Rockwood 41
- Scottdale 41
- Somerset 41
- South Connellsville 41
- South Uniontown 41
- Springdale 41
- Avalon 40
- Ben Avon 40
- Boyertown 40
- East Uniontown 40
- Fairchance 40
- Hopwood 40
- Leith-Hatfield 40
- Meyersdale 40
- New Berlinville 40
- Oxford 40
- Pocono Pines 40
- Point Marion 40
- Sewickley 40
- South Coatesville 40
- Doylestown 39
- Gilbertsville 39
- Green Hills 39
- Halfway House 39
- Houston 39
- Kenilworth 39
- Mount Lebanon 39
- Pennsburg 39
- Pottsgrove 39
- Pottstown 39
- Prosperity 39
- Red Hill 39
- Richlandtown 39
- South Pottstown 39
- Spinnerstown 39
- Stowe 39
- Wolfdale 39
- Braddock Hills 38
- Caln 38
- Sanatoga 38
- West Newton 38
- Woxall 38
- Dresher 37
- Glenside 37
- Langhorne 37
- Limerick 37
- Perkasie 37
- Royersford 37
- Schwenksville 37
- Spring Mount 37
- Upland 37
- Berwyn 36
- Eagleview 36
- Harleysville 36
- Sellersville 36
- Souderton 36
- Telford 36
- Thorndale 36
- Trappe 36
- West Grove 36
- Bedminster 35
- Collegeville 35
- Dublin 35
- Evansburg 35
- Exton 35
- Ford City 35
- Hatfield 35
- Kennett Square 35
- Kulpsville 35
- Lionville 35
- Maple Glen 35
- Monroeville 35
- Northampton 35
- Skippack 35
- Toughkenamon 35
- Ambler 34
- Audubon 34
- Blue Bell 34
- Bridgeport 34
- Brittany Farms-Highlands 34
- Chalfont 34
- Chester Heights 34
- Chesterbrook 34
- Conshohocken 34
- Devon 34
- Eagleville 34
- King of Prussia 34
- Kittanning 34
- Lansdale 34
- McKeesport 34
- Meadville 34
- New Britain 34
- Norristown 34
- North Wales 34
- Plumsteadville 34
- Prospect 34
- Radnor 34
- Tinicum 34
- Trooper 34
- Washington 34
- Wayne 34
- West Conshohocken 34
- West Norriton 34
- Ardmore 33
- Bala-Cynwyd 33
- Boothwyn 33
- Brookhaven 33
- Broomall 33
- Carnegie 33
- Clifton Heights 33
- Drexel Hill 33
- Flourtown 33
- Fort Washington 33
- Hatboro 33
- Homestead 33
- Horsham 33
- Ivyland 33
- Johnstown 33
- Lansdowne 33
- Manheim 33
- McMurray 33
- Morton 33
- Murrysville 33
- Narberth 33
- New Holland 33
- Oreland 33
- Parkside 33
- Penn Wynne 33
- Swarthmore 33
- Village Green-Green Ridge 33
- Warminster Heights 33
- Willow Grove 33
- Woodlyn 33
- Wyncote 33
- Wyndmoor 33
- Aldan 32
- Bath 32
- Bryn Athyn 32
- Churchville 32
- Collingdale 32
- Colwyn 32
- Darby 32
- East Lansdowne 32
- Eddystone 32
- Feasterville 32
- Folcroft 32
- Folsom 32
- Glenolden 32
- Jenkintown 32
- Linwood 32
- Millbourne 32
- Newtown 32
- Norwood 32
- Prospect Park 32
- Richboro 32
- Ridley Park 32
- Rockledge 32
- Sharon Hill 32
- Trainer 32
- Trevose 32
- Village Shires 32
- Waterford 32
- Waynesburg 32
- Yeadon 32
- Canonsburg 31
- Center City 31
- Elizabethtown 31
- Langhorne Manor 31
- Morrisville 31
- Penndel 31
- Spring House 31
- Tacony 31
- Woodbourne 31
- Cornwells Heights 30
- Croydon 30
- Dickson City 30
- Eddington 30
- Fairless Hills 30
- Graysville 30
- Natrona Heights 30
- Pennsport 30
- Plymouth Meeting 30
- Schlusser 30
- Wharton 30
- Whitman 30
- Woodburn 30
- Avon 29
- Avondale 29
- Bristol 29
- Collinsburg 29
- East Greenville 29
- East Petersburg 29
- Gastonville 29
- Glassport 29
- Jefferson Hills 29
- Levittown 29
- Philadelphia 29
- Tullytown 29
- Wilkinsburg 29
- York 29
- Allentown 28
- Blakely 28
- Hershey 28
- Lancaster 28
- Lebanon 28
- New Hope 28
- Reading 28
- Shippensburg 28
- Spring City 28
- Biglerville 27
- Gordonville 27
- Jim Thorpe 27
- Macungie 27
- Springfield 27
- Throop 27
- Dunmore 26
- Paoli 26
- Tannersville 26
- Chester Springs 25
- Glenshaw 25
- Jessup 25
- Quakertown 25
- Steelton 25
- Bethlehem 24
- Clairton 24
- Columbia 24
- Easton 24
- Greensburg 24
- New Kingstown 24
- Saint Clair 24
- State College 24
- West Chester 24
- Wilkes-Barre 24
- Archbald 23
- Dallas 23
- Freemansburg 23
- Harrisburg 23
- Montrose 23
- Pen Argyl 23
- West Mifflin 23
- Coopersburg 22
- Friedens 22
- Lehighton 22
- Linglestown 22
- Marcus Hook 22
- Media 22
- Monroe 22
- Camp Hill 21
- East Bangor 21
- Harveys Lake 21
- Middletown 21
- New Bloomfield 21
- Scranton 21
- Chester 20
- Susquehanna 20
- Tunkhannock 20
- Bentleyville 19
- Carlisle 19
- Elizabeth 19
- Huntingdon 19
- Indiana 19
- Jeannette 19
- Lawson Heights 19
- Birchwood Lakes 18
- Malvern 18
- Strasburg 17
- Bangor 16
- Jersey Shore 16
- Stormstown 16
- Altoona 15
- Ligonier 15
- Donegal 14
- Hawley 14
- Lewisburg 14
- Littlestown 14
- Selinsgrove 14
- Bloomsburg 13
- Phoenixville 13
- Gettysburg 12
- Waynesboro 12
- Downingtown 11
- Yardley 11
- New Stanton 10
- Northumberland 10
- Montgomeryville 9
- Bear Rocks 8
- Lima 8
- Upper Saint Clair 8
- Mechanicsburg 6
- Milton 6
- Williamsport 6
- Hellertown 5
- Boiling Springs 4
- Garden View 4
- Canton 3
- Lincoln 2
- Charleroi 1
- Elizabethville 1
- Honesdale 1
- Uniontown 0
AQI US, Metric