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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 | 60 |
| 3 | Meadville | 55 |
| 4 | Bath | 53 |
| 5 | Coraopolis | 53 |
| 6 | McDonald | 51 |
| 7 | Beaver Falls | 50 |
| 8 | Whitehall | 50 |
| 9 | Monaca | 49 |
| 10 | Emsworth | 48 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
341 Contributors
See all
LIVE AQI CITY RANKING
Real-time Pennsylvania
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Mechanicsburg | 0 |
| 2 | Charleroi | 1 |
| 3 | Elizabethville | 1 |
| 4 | Honesdale | 1 |
| 5 | Uniontown | 1 |
| 6 | Boiling Springs | 2 |
| 7 | Shippensburg | 5 |
| 8 | Bear Rocks | 6 |
| 9 | Milton | 6 |
| 10 | Bloomsburg | 8 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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The latest air quality news and resources.
Pennsylvania air quality data attribution
341Contributors
- 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
324 Anonymous contributors324 stations
324 Anonymous Contributors
Which is the most polluted city in Pennsylvania?
- Coatesville 153
- Erie 60
- Meadville 55
- Slippery Rock 54
- Avonia 53
- Bath 53
- Coraopolis 53
- Fairview 53
- Lake City 53
- Bessemer 52
- Girard 52
- North East 52
- Northwest Harborcreek 52
- Wesleyville 52
- McDonald 51
- Beaver Falls 50
- Whitehall 50
- Albion 49
- Monaca 49
- New Beaver 49
- New Castle Northwest 49
- Oakwood 49
- Ohioville 49
- Sharon 49
- Big Beaver 48
- Emsworth 48
- Fredericktown 48
- Sharpsville 48
- Baldwin 47
- Beaver 47
- Hermitage 47
- Midland 47
- New Castle 47
- Pymatuning Central 47
- West Mayfield 47
- Aliquippa 46
- Edgeworth 46
- Ellport 46
- Ellwood City 46
- Georgetown 46
- Greenville 46
- Industry 46
- New Wilmington 46
- Reynolds Heights 46
- Sharpsburg 46
- Conneaut Lakeshore 45
- Edinboro 45
- Mount Lebanon 45
- Baden 44
- Big Bass Lake 44
- Cambridge Springs 44
- Conway 44
- East Stroudsburg 44
- Emerald Lakes 44
- Indian Mountain Lake 44
- Moscow 44
- Mount Cobb 44
- Mount Pocono 44
- Mountainhome 44
- Penn Estates 44
- Sierra View 44
- The Hideout 44
- Wallenpaupack Lake Estates 44
- Zelienople 44
- Ambridge 43
- Arlington Heights 43
- Athens 43
- Avoca 43
- Brodheadsville 43
- Burgettstown 43
- Carbondale 43
- Carnot-Moon 43
- Cherryville 43
- Chinchilla 43
- Coaldale 43
- Cranberry Township 43
- Dupont 43
- Duquesne 43
- Duryea 43
- Economy 43
- Effort 43
- Enlow 43
- Evans City 43
- Fernway 43
- Fox Run 43
- Hemlock Farms 43
- Jermyn 43
- Lansford 43
- Laurys Station 43
- Leetsdale 43
- Lykens 43
- Mars 43
- Mayfield 43
- Mercer 43
- Moosic 43
- Nesquehoning 43
- Old Forge 43
- Olyphant 43
- Palmerton 43
- Peckville 43
- Sayre 43
- Schnecksville 43
- Seven Fields 43
- Simpson 43
- Slatington 43
- South Waverly 43
- Summit Hill 43
- Sun Valley 43
- Taylor 43
- Towamensing Trails 43
- Towanda 43
- Tower City 43
- Troy 43
- Walnutport 43
- Waymart 43
- Weissport East 43
- Williamstown 43
- Youngsville 43
- Ashland 42
- Ashley 42
- Bakerstown 42
- Blossburg 42
- Browntown 42
- Cementon 42
- Clarks Green 42
- Clarks Summit 42
- Conashaugh Lakes 42
- Coplay 42
- Cressona 42
- Dalton 42
- Edwardsville 42
- Egypt 42
- Elkland 42
- Elysburg 42
- Exeter 42
- Fairview-Ferndale 42
- Forest City 42
- Forty Fort 42
- Frackville 42
- Franklin Park 42
- Freeland 42
- Girardville 42
- Gold Key Lake 42
- Grove City 42
- Hamburg 42
- Hazleton 42
- Hilldale 42
- Homeacre-Lyndora 42
- Hometown 42
- Hudson 42
- Hughestown 42
- Imperial 42
- Inkerman 42
- Kingston 42
- Kulpmont 42
- Laflin 42
- Lake Latonka 42
- Lake Wynonah 42
- Larksville 42
- Mahanoy City 42
- Mansfield 42
- Marshallton 42
- Matamoras 42
- McAdoo 42
- Meridian 42
- Millersburg 42
- Minersville 42
- Mount Carmel 42
- Mountain Top 42
- New Holland 42
- New Philadelphia 42
- Nixon 42
- Oak Hills 42
- Orwigsburg 42
- Palo Alto 42
- Pine Grove 42
- Pittston 42
- Plains 42
- Port Carbon 42
- Pottsville 42
- Sandy Lake 42
- Saw Creek 42
- Saylorsburg 42
- Schuylkill Haven 42
- Shamokin 42
- Shavertown 42
- Shenandoah 42
- Shenandoah Heights 42
- Stoneboro 42
- Stroudsburg 42
- Sunrise Lake 42
- Swoyersville 42
- Tamaqua 42
- Tremont 42
- Trevorton 42
- Trucksville 42
- Weatherly 42
- Wellsboro 42
- West Hazleton 42
- West Pittston 42
- West View 42
- West Wyoming 42
- Westfield 42
- White Haven 42
- Wyoming 42
- Allison Park 41
- Almedia 41
- Back Mountain 41
- Beech Mountain Lakes 41
- Belfast 41
- Bell Acres 41
- Berwick 41
- Catasauqua 41
- Catawissa 41
- Cochranton 41
- Colonial Park 41
- Conyngham 41
- Crafton 41
- Curtisville 41
- Danville 41
- Duncannon 41
- East Berwick 41
- Enhaut 41
- Enola 41
- Espy 41
- Etna 41
- Freedom 41
- Fullerton 41
- Galeton 41
- Gibsonia 41
- Glen Lyon 41
- Hallstead 41
- Harleigh 41
- Hokendauqua 41
- Hummels Wharf 41
- Ingram 41
- Laporte 41
- Lawnton 41
- Lawrence Park 41
- Lemoyne 41
- Light Street 41
- Lower Allen 41
- Marysville 41
- McKees Rocks 41
- Meadowood 41
- Mechanicsville 41
- Mifflinville 41
- Millvale 41
- Nanticoke 41
- Nescopeck 41
- New Brighton 41
- New Cumberland 41
- Newport 41
- North Catasauqua 41
- Oakdale 41
- Paxtang 41
- Paxtonia 41
- Penbrook 41
- Pine Ridge 41
- Plymouth 41
- Pocono Ranch Lands 41
- Progress 41
- Rennerdale 41
- Riverside 41
- Roseto 41
- Sewickley 41
- Shamokin Dam 41
- Shanor-Northvue 41
- Shiremanstown 41
- Skyline View 41
- Stiles 41
- Sturgeon 41
- Sunbury 41
- Union City 41
- West Fairview 41
- West Hamburg 41
- Whitehall Township 41
- Wind Gap 41
- Wormleysburg 41
- Arnold 40
- Aspinwall 40
- Avis 40
- Bellefonte 40
- Blawnox 40
- Bloomfield 40
- Brackenridge 40
- Breinigsville 40
- Bressler 40
- Bridgeville 40
- Butler 40
- Castanea 40
- Cecil-Bishop 40
- Cetronia 40
- Cheswick 40
- Clearfield 40
- Coudersport 40
- Curwensville 40
- Dewart 40
- Dillsburg 40
- Dormont 40
- DuBois 40
- Duboistown 40
- Dunnstown 40
- Eastlawn Gardens 40
- Emporium 40
- Factoryville 40
- Falls Creek 40
- Faxon 40
- Fleetwood 40
- Flemington 40
- Fredericksburg 40
- Freeport 40
- Green Tree 40
- Heidelberg 40
- Highspire 40
- Houserville 40
- Hughesville 40
- Hummelstown 40
- Hyde 40
- Jonestown 40
- Kenmar 40
- Kutztown 40
- Lemont 40
- Linntown 40
- Lock Haven 40
- McGovern 40
- Middleburg 40
- Mifflinburg 40
- Milesburg 40
- Mill Hall 40
- Montgomery 40
- Montoursville 40
- Mount Holly Springs 40
- Mount Oliver 40
- Muncy 40
- Muse 40
- Nazareth 40
- New Columbia 40
- Newville 40
- Northampton 40
- Oakmont 40
- Osceola Mills 40
- Park Forest Village 40
- Penfield 40
- Penn Hills 40
- Philipsburg 40
- Pine Grove Mills 40
- Pocono Pines 40
- Port Allegany 40
- Punxsutawney 40
- Ramblewood 40
- Renovo 40
- Rochester 40
- Russellton 40
- Rutherford 40
- Saint Marys 40
- Sandy 40
- Saxonburg 40
- Shinglehouse 40
- Shoemakersville 40
- South Williamsport 40
- Sykesville 40
- Tarentum 40
- Tatamy 40
- Tipton 40
- Toftrees 40
- Topton 40
- Trafford 40
- Treasure Lake 40
- Tyrone 40
- Valley Green 40
- Verona 40
- Watsontown 40
- Alburtis 39
- Ancient Oaks 39
- Barnesboro 39
- Belleville 39
- Bellevue 39
- Bellwood 39
- Bethel Park 39
- Blandon 39
- Boalsburg 39
- Bradford 39
- Brentwood 39
- Bryn Mawr 39
- Burnham 39
- Castle Shannon 39
- Centre Hall 39
- Church Hill 39
- Churchill 39
- Clymer 39
- Dorneyville 39
- Doylestown 39
- East Berlin 39
- East Washington 39
- Edgewood 39
- Emmaus 39
- Fayetteville 39
- Foster Brook 39
- Fountain Hill 39
- Fox Chapel 39
- Gallitzin 39
- Greenwood 39
- Hastings 39
- Highland Park 39
- Lake Meade 39
- Lakemont 39
- Leechburg 39
- Leesport 39
- Lewistown 39
- Loretto 39
- Lower Burrell 39
- Mifflintown 39
- Milroy 39
- Munhall 39
- New Kensington 39
- Palmdale 39
- Palmer Heights 39
- Palmyra 39
- Patton 39
- Pleasant Gap 39
- Pleasant Hills 39
- Plum 39
- Rankin 39
- Reynoldsville 39
- Royalton 39
- Scotland 39
- Smethport 39
- South Park Township 39
- Spangler 39
- Sugarcreek 39
- Thompsonville 39
- Trexlertown 39
- Wescosville 39
- West Homestead 39
- West Leechburg 39
- Whitaker 39
- Wolfdale 39
- Yeagertown 39
- Zion 39
- Abbottstown 38
- Apollo 38
- Bally 38
- Bonneauville 38
- Brockway 38
- Carroll Valley 38
- Chambersburg 38
- Chevy Chase Heights 38
- Chicora 38
- Claysburg 38
- Corry 38
- Cresson 38
- Dover 38
- Dravosburg 38
- Duncansville 38
- East McKeesport 38
- East Pittsburgh 38
- Ebensburg 38
- Fox Chase 38
- Franklin 38
- Greencastle 38
- Guilford 38
- Guilford Siding 38
- Hanover 38
- Hollidaysburg 38
- Hyde Park 38
- Johnsonburg 38
- Lake Heritage 38
- Laureldale 38
- Lenape Heights 38
- Liberty 38
- Martinsburg 38
- McConnellstown 38
- McSherrystown 38
- Midway 38
- Mont Alto 38
- Mount Pleasant 38
- Mount Union 38
- Muhlenberg Park 38
- Myerstown 38
- Nanty Glo 38
- New Oxford 38
- North Apollo 38
- North Braddock 38
- North Versailles 38
- Northern Cambria 38
- Old Orchard 38
- Oley 38
- Orchard Hills 38
- Parkville 38
- Pennville 38
- Pitcairn 38
- Port Vue 38
- Portage 38
- Ridgway 38
- River View Park 38
- Roaring Spring 38
- Sand Hill 38
- Shiloh 38
- South Temple 38
- Spring Grove 38
- State Line 38
- Stony Creek Mills 38
- Swissvale 38
- Temple 38
- Turtle Creek 38
- Vandergrift 38
- Wayne Heights 38
- Weigelstown 38
- West Easton 38
- West Hills 38
- West Kittanning 38
- Williamsburg 38
- Wilmerding 38
- Wilson 38
- Amity Gardens 37
- Annville 37
- Baidland 37
- Birdsboro 37
- Boyertown 37
- Brookville 37
- Campbelltown 37
- Cleona 37
- Colony Park 37
- Dresher 37
- Farrell 37
- Forest Hills 37
- Gilbertsville 37
- Greenfields 37
- Greenock 37
- Halfway House 37
- Hebron 37
- Jacksonwald 37
- Kenhorst 37
- Level Green 37
- Lorane 37
- Manchester 37
- McConnellsburg 37
- Mercersburg 37
- Mount Penn 37
- Mount Wolf 37
- Mundys Corner 37
- New Berlinville 37
- New Eagle 37
- Newmanstown 37
- Oil City 37
- Pennsburg 37
- Pennside 37
- Pleasant Hill 37
- Raubsville 37
- Red Hill 37
- Reiffton 37
- Richland 37
- Richlandtown 37
- Robesonia 37
- Russell 37
- Saint Lawrence 37
- Spinnerstown 37
- Spring Ridge 37
- Titusville 37
- Versailles 37
- Wernersville 37
- West Reading 37
- West York 37
- White Oak 37
- Whitfield 37
- Wilcox 37
- Womelsdorf 37
- Woodland Heights 37
- Wyomissing Hills 37
- Bainbridge 36
- Beaverdale 36
- Black Lick 36
- Blairsville 36
- Cochranville 36
- Cornwall 36
- Delmont 36
- Emigsville 36
- Flying Hills 36
- Grantley 36
- Grill 36
- Hasson Heights 36
- Homer City 36
- Houston 36
- Irwin 36
- Kane 36
- Kenilworth 36
- Lebanon South 36
- Limerick 36
- Lincoln Park 36
- Manor 36
- Mohnton 36
- Monongahela 36
- North Charleroi 36
- North Warren 36
- North York 36
- Perkasie 36
- Pottsgrove 36
- Pottstown 36
- Prosperity 36
- Sanatoga 36
- Schwenksville 36
- Seneca 36
- Shillington 36
- Sinking Spring 36
- South Pottstown 36
- Spring Mount 36
- Stowe 36
- Vinco 36
- Warren 36
- West Lawn 36
- West Wyomissing 36
- Wickerham Manor-Fisher 36
- Woxall 36
- Adamstown 35
- Akron 35
- Alleghenyville 35
- Bedminster 35
- Belle Vernon 35
- Bowmansville 35
- Bradford Woods 35
- Brickerville 35
- Centerville 35
- Clay 35
- Denver 35
- Donora 35
- East Conemaugh 35
- East York 35
- Elverson 35
- Ephrata 35
- Fellsburg 35
- Fivepointville 35
- Glen Rock 35
- Harleysville 35
- Jacobus 35
- Knox 35
- Lititz 35
- Loganville 35
- Lynnwood-Pricedale 35
- Maple Glen 35
- Marietta 35
- Maytown 35
- Monessen 35
- Mount Joy 35
- North Belle Vernon 35
- Penryn 35
- Reamstown 35
- Reinholds 35
- Rheems 35
- Rothsville 35
- Royersford 35
- Salix 35
- Schoeneck 35
- Sellersville 35
- Sheffield 35
- Souderton 35
- Speers 35
- Spry 35
- Stonybrook 35
- Swartzville 35
- Telford 35
- Terre Hill 35
- Trappe 35
- Valley View 35
- Yorklyn 35
- Ben Avon 34
- Blue Ball 34
- Brownstown 34
- California 34
- Clarion 34
- Collegeville 34
- Conemaugh 34
- Dale 34
- Dallastown 34
- Derry 34
- Dickson City 34
- Dublin 34
- East Earl 34
- Fairhope 34
- Geistown 34
- Hallam 34
- Hatfield 34
- Honey Brook 34
- Landisville 34
- Leola 34
- Luzerne 34
- Marcus Hook 34
- Marianne 34
- Marienville 34
- Mountville 34
- New Freedom 34
- Oakland 34
- Red Lion 34
- Salunga 34
- Shrewsbury 34
- Skippack 34
- Southmont 34
- Southwest Greensburg 34
- Tinicum 34
- Tionesta 34
- Westmont 34
- Windsor 34
- Wrightsville 34
- Yoe 34
- Audubon 33
- Avalon 33
- Belmont 33
- Brittany Farms-Highlands 33
- Brogue 33
- Brownsville 33
- Caln 33
- Carnegie 33
- Chalfont 33
- Conestoga 33
- Eagleview 33
- Eagleville 33
- Earlston 33
- Elim 33
- Evansburg 33
- Everett 33
- Fairdale 33
- Ferndale 33
- Fort Washington 33
- Gap 33
- Hiller 33
- Intercourse 33
- Kulpsville 33
- Lampeter 33
- Lansdale 33
- Latrobe 33
- Lionville 33
- Loyalhanna 33
- Millersville 33
- New Britain 33
- North Wales 33
- Paradise 33
- Perryopolis 33
- Pittsburgh 33
- Plumsteadville 33
- South Coatesville 33
- South Greensburg 33
- Stewartstown 33
- Thorndale 33
- Trooper 33
- Willow Street 33
- Youngwood 33
- Atglen 32
- Blue Bell 32
- Bridgeport 32
- Calumet 32
- Chesterbrook 32
- Christiana 32
- Columbia 32
- Exton 32
- Glenside 32
- Johnstown 32
- King of Prussia 32
- Masontown 32
- Murrysville 32
- Norristown 32
- Parkesburg 32
- Point Marion 32
- Quarryville 32
- Republic 32
- Susquehanna Trails 32
- Waterford 32
- West Norriton 32
- Windber 32
- Ambler 31
- Bedford 31
- Biglerville 31
- Central City 31
- Churchville 31
- Connellsville 31
- Conshohocken 31
- Davidsville 31
- Devon 31
- Dunbar 31
- East Uniontown 31
- Fairchance 31
- Flourtown 31
- Hatboro 31
- Hopwood 31
- Horsham 31
- Ivyland 31
- Jerome 31
- Leith-Hatfield 31
- Manheim 31
- Newtown 31
- Oliver 31
- Oreland 31
- Oxford 31
- Prospect 31
- Quakertown 31
- Radnor 31
- Richboro 31
- Scottdale 31
- South Connellsville 31
- South Uniontown 31
- Springdale 31
- Upland 31
- Warminster Heights 31
- Wayne 31
- West Conshohocken 31
- Willow Grove 31
- Wyomissing 31
- Boswell 30
- Braddock 30
- Broomall 30
- Bryn Athyn 30
- Easton 30
- Feasterville 30
- Green Hills 30
- Jenkintown 30
- Kennett Square 30
- Kittanning 30
- Morrisville 30
- Spring House 30
- Throop 30
- Toughkenamon 30
- Trevose 30
- Village Shires 30
- West Grove 30
- West Newton 30
- Woodbourne 30
- Wyncote 30
- Wyndmoor 30
- Ardmore 29
- Bala-Cynwyd 29
- Blakely 29
- Chester Heights 29
- Collinsburg 29
- East Petersburg 29
- Fairless Hills 29
- Furlong 29
- Langhorne Manor 29
- Lebanon 29
- Lima 29
- Littlestown 29
- Monroeville 29
- Narberth 29
- Penn Wynne 29
- Penndel 29
- Rockledge 29
- Springfield 29
- Berwyn 28
- Chester Springs 28
- Drexel Hill 28
- Hershey 28
- Homestead 28
- Lehighton 28
- Levittown 28
- Milford 28
- Millbourne 28
- Newtown Grant 28
- Paoli 28
- Somerset 28
- Tullytown 28
- Woodburn 28
- York 28
- Aldan 27
- Allentown 27
- Avon 27
- Avondale 27
- Bangor 27
- Berlin 27
- Boothwyn 27
- Bristol 27
- Center City 27
- Clifton Heights 27
- Collingdale 27
- Colwyn 27
- Cornwells Heights 27
- Croydon 27
- Darby 27
- East Lansdowne 27
- Eddington 27
- Elizabethtown 27
- Ford City 27
- Greensburg 27
- Lancaster 27
- Lansdowne 27
- McMurray 27
- Morton 27
- Swarthmore 27
- Tacony 27
- Village Green-Green Ridge 27
- Woodside 27
- Yeadon 27
- Braddock Hills 26
- Brookhaven 26
- Eddystone 26
- Folcroft 26
- Folsom 26
- Glenolden 26
- Gordonville 26
- Langhorne 26
- Linwood 26
- Meyersdale 26
- Natrona Heights 26
- Norwood 26
- Parkside 26
- Philadelphia 26
- Plymouth Meeting 26
- Prospect Park 26
- Ridley Park 26
- Sharon Hill 26
- Trainer 26
- Woodlyn 26
- Clairton 25
- Glassport 25
- Glenshaw 25
- Graysville 25
- Pennsport 25
- Wharton 25
- Whitman 25
- Canonsburg 24
- Montrose 24
- New Kingstown 24
- Schlusser 24
- Washington 24
- Waynesburg 24
- Tannersville 23
- Bethlehem 22
- Chester 22
- Freemansburg 22
- Linglestown 22
- State College 22
- Wilkinsburg 22
- Birchwood Lakes 21
- Middletown 21
- Monroe 21
- New Hope 21
- Tunkhannock 21
- Wilkes-Barre 21
- Downingtown 20
- Media 20
- Steelton 20
- Susquehanna 20
- East Greenville 19
- Elizabeth 19
- Jeannette 19
- Jessup 19
- Pen Argyl 19
- Stormstown 19
- Camp Hill 18
- Dunmore 18
- Harrisburg 18
- Jersey Shore 18
- Malvern 18
- Scranton 18
- West Chester 18
- Friedens 17
- Harveys Lake 17
- Reading 17
- Saint Clair 17
- Spring City 17
- East Bangor 16
- Huntingdon 16
- Indiana 16
- Jefferson Hills 16
- Jim Thorpe 16
- McKeesport 16
- Gettysburg 15
- Rockwood 15
- Strasburg 15
- Altoona 14
- Archbald 14
- Coopersburg 14
- Lewisburg 14
- Bentleyville 13
- New Bloomfield 13
- Phoenixville 13
- West Mifflin 13
- Dallas 12
- Ligonier 12
- Carlisle 11
- Garden View 11
- Gastonville 11
- Hawley 11
- Lawson Heights 11
- Northumberland 11
- Williamsport 11
- Yardley 11
- Canton 10
- Macungie 10
- New Stanton 10
- Selinsgrove 10
- Waynesboro 10
- Donegal 9
- Montgomeryville 9
- Bloomsburg 8
- Upper Saint Clair 8
- Bear Rocks 6
- Milton 6
- Hellertown 5
- Shippensburg 5
- Boiling Springs 2
- Lincoln 2
- Charleroi 1
- Elizabethville 1
- Honesdale 1
- Uniontown 1
- Mechanicsburg 0
AQI US, Metric