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 | Marcus Hook | 70 |
| 2 | Coatesville | 52 |
| 3 | Throop | 51 |
| 4 | Dunmore | 44 |
| 5 | Greensburg | 39 |
| 6 | Dickson City | 36 |
| 7 | Scranton | 36 |
| 8 | Lancaster | 34 |
| 9 | Friedens | 33 |
| 10 | McMurray | 33 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
371 Contributors
See all
LIVE AQI CITY RANKING
Real-time Pennsylvania
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Meadville | 8 |
| 2 | Prospect | 10 |
| 3 | Bell Acres | 11 |
| 4 | Doylestown | 11 |
| 5 | Edgeworth | 11 |
| 6 | Hellertown | 11 |
| 7 | Altoona | 12 |
| 8 | Canton | 12 |
| 9 | Economy | 12 |
| 10 | Erie | 12 |
(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
371Contributors
- 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
- CW7221
1 station
- Bill Fenner
1 station
- Jeff Wiggins
1 station
- JH
1 station
Rick Evans1 station
Anonymous1 station
15 Individual Contributors
353 Anonymous contributors353 stations
353 Anonymous Contributors
Which is the most polluted city in Pennsylvania?
- Pocono Pines 91
- Marcus Hook 70
- Coatesville 52
- Throop 51
- Dunmore 44
- Greensburg 39
- Dickson City 36
- Scranton 36
- Lancaster 34
- Ramblewood 34
- Friedens 33
- McMurray 33
- Wolfdale 33
- Columbia 32
- Green Hills 32
- Charleroi 31
- Jenkintown 31
- Rockwood 31
- Wilcox 31
- Biglerville 30
- Jessup 30
- McDonald 30
- Point Marion 30
- Washington 30
- Baidland 29
- Brownsville 29
- California 29
- Centerville 29
- Donora 29
- East Uniontown 29
- East Washington 29
- Fairchance 29
- Fairdale 29
- Fairhope 29
- Graysville 29
- Hershey 29
- Hiller 29
- Hopwood 29
- Leith-Hatfield 29
- Luzerne 29
- Lynnwood-Pricedale 29
- Maple Glen 29
- Masontown 29
- McGovern 29
- Monongahela 29
- New Eagle 29
- New Holland 29
- North Belle Vernon 29
- North Charleroi 29
- Oliver 29
- Peckville 29
- Perryopolis 29
- Philadelphia 29
- Prosperity 29
- Republic 29
- South Uniontown 29
- Speers 29
- Uniontown 29
- Wickerham Manor-Fisher 29
- Bethel Park 28
- Bryn Mawr 28
- Cecil-Bishop 28
- Fellsburg 28
- Forest Hills 28
- Harrisburg 28
- Kutztown 28
- Muse 28
- Pleasant Hills 28
- Sandy Lake 28
- South Park Township 28
- Thompsonville 28
- Wilson 28
- Allison Park 27
- Apollo 27
- Arnold 27
- Aspinwall 27
- Black Lick 27
- Blairsville 27
- Blawnox 27
- Bloomfield 27
- Brackenridge 27
- Brentwood 27
- Bridgeville 27
- Bristol 27
- Calumet 27
- Canonsburg 27
- Carnot-Moon 27
- Castle Shannon 27
- Cheswick 27
- Chevy Chase Heights 27
- Churchill 27
- Connellsville 27
- Crafton 27
- Curtisville 27
- Delmont 27
- Derry 27
- Dormont 27
- Dravosburg 27
- Dunbar 27
- Duquesne 27
- East McKeesport 27
- East Pittsburgh 27
- Edgewood 27
- Enlow 27
- Etna 27
- Freeport 27
- Georgetown 27
- Gibsonia 27
- Green Tree 27
- Greenock 27
- Heidelberg 27
- Homer City 27
- Houston 27
- Imperial 27
- Ingram 27
- Irwin 27
- Latrobe 27
- Lebanon 27
- Leechburg 27
- Lenape Heights 27
- Level Green 27
- Liberty 27
- Lower Burrell 27
- Loyalhanna 27
- Manor 27
- McKees Rocks 27
- Media 27
- Millvale 27
- Mount Lebanon 27
- Mount Oliver 27
- Munhall 27
- New Kensington 27
- North Apollo 27
- North Braddock 27
- North Versailles 27
- Oakdale 27
- Oakmont 27
- Orchard Hills 27
- Penn Hills 27
- Pitcairn 27
- Plum 27
- Port Vue 27
- Rankin 27
- Rennerdale 27
- Russellton 27
- Scottdale 27
- Shippensburg 27
- South Connellsville 27
- South Greensburg 27
- Southmont 27
- Southwest Greensburg 27
- Sturgeon 27
- Tarentum 27
- Turtle Creek 27
- Vandergrift 27
- Verona 27
- Versailles 27
- Waynesburg 27
- West Homestead 27
- West Leechburg 27
- West View 27
- Westmont 27
- Whitaker 27
- White Oak 27
- Wilmerding 27
- Youngwood 27
- Ambridge 26
- Bakerstown 26
- Beaverdale 26
- Belmont 26
- Berlin 26
- Boswell 26
- Central City 26
- Clymer 26
- Conemaugh 26
- Conway 26
- Cranberry Township 26
- Dale 26
- Davidsville 26
- East Conemaugh 26
- Elim 26
- Evans City 26
- Ferndale 26
- Fernway 26
- Fox Run 26
- Geistown 26
- Jefferson Hills 26
- Jerome 26
- Langhorne 26
- Leetsdale 26
- Littlestown 26
- Manheim 26
- Mars 26
- Meyersdale 26
- Midland 26
- Morrisville 26
- Mundys Corner 26
- Nanty Glo 26
- New Bloomfield 26
- Nixon 26
- Northern Cambria 26
- Oakland 26
- Ohioville 26
- Reading 26
- Salix 26
- Saxonburg 26
- Seven Fields 26
- Somerset 26
- Vinco 26
- Waynesboro 26
- West Hills 26
- West Kittanning 26
- Windber 26
- Bedford 25
- Bessemer 25
- Big Beaver 25
- Chicora 25
- Clairton 25
- Dresher 25
- Earlston 25
- Ebensburg 25
- Elizabethtown 25
- Ellport 25
- Ellwood City 25
- Everett 25
- Garden View 25
- Gastonville 25
- Gettysburg 25
- Glenside 25
- Homeacre-Lyndora 25
- Jermyn 25
- Meadowood 25
- Meridian 25
- Middletown 25
- New Beaver 25
- New Castle Northwest 25
- Newtown Grant 25
- Oak Hills 25
- Oakwood 25
- Portage 25
- Steelton 25
- Strasburg 25
- West Mayfield 25
- Wyomissing 25
- Zelienople 25
- Allentown 24
- Baldwin 24
- Beaver 24
- Carnegie 24
- Conneaut Lakeshore 24
- Donegal 24
- Easton 24
- Greenville 24
- Grove City 24
- Hermitage 24
- Lake Latonka 24
- Mercer 24
- New Wilmington 24
- Pymatuning Central 24
- Reynolds Heights 24
- Robesonia 24
- Sharon 24
- Sharpsville 24
- Spangler 24
- Stoneboro 24
- West Newton 24
- Whitehall 24
- Barnesboro 23
- Blakely 23
- Cochranton 23
- Collinsburg 23
- Cresson 23
- Fox Chapel 23
- Franklin 23
- Harveys Lake 23
- Knox 23
- Loretto 23
- New Hope 23
- Phoenixville 23
- Pittsburgh 23
- Pittston 23
- Selinsgrove 23
- Sugarcreek 23
- Swissvale 23
- Albion 22
- Bath 22
- Bethlehem 22
- Birchwood Lakes 22
- Brogue 22
- Burgettstown 22
- Clarion 22
- Claysburg 22
- Dallas 22
- East Greenville 22
- Elizabeth 22
- Elizabethville 22
- Hasson Heights 22
- Hastings 22
- Lewisburg 22
- Marianne 22
- Murrysville 22
- Northampton 22
- Oil City 22
- Saint Clair 22
- Schlusser 22
- Seneca 22
- Tannersville 22
- Woodland Heights 22
- Belle Vernon 21
- Bloomsburg 21
- Boiling Springs 21
- Braddock Hills 21
- Cambridge Springs 21
- Camp Hill 21
- Chester 21
- Downingtown 21
- East Bangor 21
- East Petersburg 21
- East Stroudsburg 21
- Fort Washington 21
- Franklin Park 21
- Gallitzin 21
- Girard 21
- Glen Rock 21
- Hawley 21
- Jacobus 21
- Jim Thorpe 21
- Johnstown 21
- Lake City 21
- Loganville 21
- Macungie 21
- Mercersburg 21
- Milton 21
- Monroeville 21
- New Freedom 21
- Punxsutawney 21
- Sharpsburg 21
- Shrewsbury 21
- Spring City 21
- Spring House 21
- State Line 21
- Stewartstown 21
- Susquehanna Trails 21
- Trafford 21
- Woodside 21
- Abbottstown 20
- Archbald 20
- Atglen 20
- Avonia 20
- Bellevue 20
- Bonneauville 20
- Brookville 20
- Carroll Valley 20
- Christiana 20
- Conestoga 20
- Dallastown 20
- Dover 20
- Duncansville 20
- East Berlin 20
- East York 20
- Edinboro 20
- Emigsville 20
- Emsworth 20
- Fairview 20
- Grantley 20
- Greencastle 20
- Guilford Siding 20
- Hallam 20
- Hanover 20
- Hokendauqua 20
- Industry 20
- Kennett Square 20
- Lake Heritage 20
- Lake Meade 20
- McConnellsburg 20
- McSherrystown 20
- Midway 20
- Mont Alto 20
- Mount Pleasant 20
- New Oxford 20
- North York 20
- Northumberland 20
- Oxford 20
- Paoli 20
- Parkesburg 20
- Parkville 20
- Patton 20
- Pennville 20
- Quakertown 20
- Quarryville 20
- Red Lion 20
- Roaring Spring 20
- Shiloh 20
- Spring Grove 20
- Spry 20
- Stonybrook 20
- Toughkenamon 20
- Upland 20
- Valley View 20
- Waterford 20
- Wayne Heights 20
- Weigelstown 20
- West Grove 20
- West York 20
- Williamsport 20
- Willow Street 20
- Windsor 20
- Wrightsville 20
- Yardley 20
- Yoe 20
- Yorklyn 20
- Aldan 19
- Aliquippa 19
- Ardmore 19
- Avon 19
- Bainbridge 19
- Bala-Cynwyd 19
- Boothwyn 19
- Bridgeport 19
- Brookhaven 19
- Broomall 19
- Caln 19
- Chambersburg 19
- Chester Heights 19
- Chesterbrook 19
- Clifton Heights 19
- Collingdale 19
- Colwyn 19
- Conshohocken 19
- Coraopolis 19
- Darby 19
- Devon 19
- Dillsburg 19
- Drexel Hill 19
- Eagleview 19
- East Lansdowne 19
- Eddystone 19
- Exton 19
- Fayetteville 19
- Folcroft 19
- Folsom 19
- Gap 19
- Glenolden 19
- Guilford 19
- Hollidaysburg 19
- Honey Brook 19
- Intercourse 19
- King of Prussia 19
- Lampeter 19
- Landisville 19
- Lansdowne 19
- Leola 19
- Linwood 19
- Lionville 19
- Malvern 19
- Manchester 19
- Marietta 19
- Martinsburg 19
- Maytown 19
- Millbourne 19
- Millersville 19
- Montrose 19
- Morton 19
- Mount Holly Springs 19
- Mount Joy 19
- Mount Wolf 19
- Mountville 19
- Narberth 19
- Natrona Heights 19
- Norwood 19
- Paradise 19
- Parkside 19
- Pen Argyl 19
- Penn Wynne 19
- Prospect Park 19
- Radnor 19
- Rheems 19
- Ridley Park 19
- Salunga 19
- Scotland 19
- Sharon Hill 19
- South Coatesville 19
- Swarthmore 19
- Thorndale 19
- Trainer 19
- Valley Green 19
- Village Green-Green Ridge 19
- Wayne 19
- West Conshohocken 19
- Wilkes-Barre 19
- Woodlyn 19
- Yeadon 19
- Adamstown 18
- Akron 18
- Alleghenyville 18
- Ambler 18
- Annville 18
- Audubon 18
- Blue Ball 18
- Blue Bell 18
- Bowmansville 18
- Bradford Woods 18
- Bressler 18
- Brickerville 18
- Brownstown 18
- Butler 18
- Campbelltown 18
- Center City 18
- Clay 18
- Collegeville 18
- Colonial Park 18
- Coopersburg 18
- Cornwall 18
- Denver 18
- Eagleville 18
- East Earl 18
- Enhaut 18
- Enola 18
- Ephrata 18
- Evansburg 18
- Fivepointville 18
- Flourtown 18
- Gordonville 18
- Greenwood 18
- Highspire 18
- Hummelstown 18
- Lakemont 18
- Lawnton 18
- Lehighton 18
- Lemoyne 18
- Ligonier 18
- Lititz 18
- Lower Allen 18
- McKeesport 18
- New Castle 18
- New Cumberland 18
- New Kingstown 18
- Newville 18
- Norristown 18
- Oreland 18
- Palmdale 18
- Palmyra 18
- Paxtang 18
- Paxtonia 18
- Penbrook 18
- Pennsport 18
- Penryn 18
- Progress 18
- Reamstown 18
- Reinholds 18
- Rockledge 18
- Rothsville 18
- Royalton 18
- Royersford 18
- Rutherford 18
- Schoeneck 18
- Shiremanstown 18
- Stormstown 18
- Swartzville 18
- Tacony 18
- Terre Hill 18
- Tionesta 18
- Titusville 18
- Trooper 18
- West Fairview 18
- West Norriton 18
- Wharton 18
- Whitman 18
- Willow Grove 18
- Woodburn 18
- Wormleysburg 18
- Wyncote 18
- Wyndmoor 18
- York 18
- Avalon 17
- Beaver Falls 17
- Ben Avon 17
- Birdsboro 17
- Brittany Farms-Highlands 17
- Bryn Athyn 17
- Chalfont 17
- Chester Springs 17
- Churchville 17
- Cleona 17
- Colony Park 17
- Cornwells Heights 17
- Croydon 17
- Duncannon 17
- Eddington 17
- Feasterville 17
- Flying Hills 17
- Ford City 17
- Glassport 17
- Grill 17
- Harleysville 17
- Hatboro 17
- Hatfield 17
- Hebron 17
- Horsham 17
- Huntingdon 17
- Ivyland 17
- Kenhorst 17
- Kenilworth 17
- Kulpsville 17
- Langhorne Manor 17
- Lansdale 17
- Lawrence Park 17
- Lebanon South 17
- Lima 17
- Limerick 17
- Lincoln Park 17
- Lorane 17
- Marysville 17
- Milford 17
- Mohnton 17
- Myerstown 17
- New Stanton 17
- Newmanstown 17
- Newtown 17
- North Wales 17
- Penndel 17
- Pleasant Hill 17
- Pottsgrove 17
- Pottstown 17
- Reynoldsville 17
- Richboro 17
- Richland 17
- Sanatoga 17
- Sand Hill 17
- Schwenksville 17
- Sewickley 17
- Shillington 17
- Sinking Spring 17
- Skippack 17
- Skyline View 17
- South Pottstown 17
- Springfield 17
- Stowe 17
- Trappe 17
- Trevose 17
- Tullytown 17
- Village Shires 17
- Warminster Heights 17
- Wernersville 17
- West Chester 17
- West Lawn 17
- West Wyomissing 17
- Whitfield 17
- Womelsdorf 17
- Wyomissing Hills 17
- Amity Gardens 16
- Avondale 16
- Bally 16
- Bedminster 16
- Berwyn 16
- Blandon 16
- Boyertown 16
- Carlisle 16
- Dublin 16
- Fairless Hills 16
- Farrell 16
- Fox Chase 16
- Fredericksburg 16
- Gilbertsville 16
- Greenfields 16
- Halfway House 16
- Homestead 16
- Honesdale 16
- Hyde Park 16
- Jacksonwald 16
- Jonestown 16
- Laureldale 16
- Leesport 16
- Levittown 16
- Marienville 16
- Matamoras 16
- Mechanicsburg 16
- Mount Penn 16
- Muhlenberg Park 16
- New Berlinville 16
- New Britain 16
- Newport 16
- Oley 16
- Pennsburg 16
- Pennside 16
- Perkasie 16
- Plumsteadville 16
- Red Hill 16
- Reiffton 16
- River View Park 16
- Saint Lawrence 16
- Sellersville 16
- Shanor-Northvue 16
- Slippery Rock 16
- Souderton 16
- South Temple 16
- Spring Mount 16
- Spring Ridge 16
- Stony Creek Mills 16
- Sykesville 16
- Telford 16
- Temple 16
- Tinicum 16
- Wescosville 16
- West Mifflin 16
- West Reading 16
- Wilkinsburg 16
- Williamsburg 16
- Woodbourne 16
- Woxall 16
- Alburtis 15
- Ancient Oaks 15
- Baden 15
- Bellwood 15
- Braddock 15
- Breinigsville 15
- Cressona 15
- Elverson 15
- Emmaus 15
- Falls Creek 15
- Fleetwood 15
- Freedom 15
- Freemansburg 15
- Hamburg 15
- Kittanning 15
- Lake Wynonah 15
- Lincoln 15
- Lykens 15
- McConnellstown 15
- Mifflintown 15
- Millersburg 15
- Monaca 15
- Monessen 15
- Montgomeryville 15
- Mount Union 15
- New Brighton 15
- Orwigsburg 15
- Pine Grove 15
- Plymouth Meeting 15
- Richlandtown 15
- Rochester 15
- Sandy 15
- Schuylkill Haven 15
- Shoemakersville 15
- Spinnerstown 15
- Tipton 15
- Topton 15
- Tower City 15
- Tremont 15
- Trexlertown 15
- Union City 15
- West Hamburg 15
- Williamstown 15
- Ashland 14
- Brockway 14
- Catasauqua 14
- Cementon 14
- Cetronia 14
- Coaldale 14
- Coplay 14
- Corry 14
- Curwensville 14
- Dorneyville 14
- DuBois 14
- Egypt 14
- Elysburg 14
- Fairview-Ferndale 14
- Fountain Hill 14
- Frackville 14
- Fullerton 14
- Girardville 14
- Hometown 14
- Hummels Wharf 14
- Kulpmont 14
- Lansford 14
- Mahanoy City 14
- Marshallton 14
- McAdoo 14
- Middleburg 14
- Minersville 14
- Mount Carmel 14
- New Philadelphia 14
- North Catasauqua 14
- North East 14
- Northwest Harborcreek 14
- Palo Alto 14
- Port Carbon 14
- Pottsville 14
- Schnecksville 14
- Shamokin 14
- Shamokin Dam 14
- Shenandoah 14
- Shenandoah Heights 14
- Slatington 14
- State College 14
- Stiles 14
- Summit Hill 14
- Sunbury 14
- Tamaqua 14
- Treasure Lake 14
- Trevorton 14
- Tyrone 14
- Wesleyville 14
- Whitehall Township 14
- Almedia 13
- Ashley 13
- Avoca 13
- Back Mountain 13
- Beech Mountain Lakes 13
- Belfast 13
- Belleville 13
- Berwick 13
- Browntown 13
- Burnham 13
- Catawissa 13
- Cherryville 13
- Church Hill 13
- Conyngham 13
- Danville 13
- Dewart 13
- Dupont 13
- Duryea 13
- East Berwick 13
- Eastlawn Gardens 13
- Edwardsville 13
- Espy 13
- Exeter 13
- Factoryville 13
- Forty Fort 13
- Freeland 13
- Glen Lyon 13
- Harleigh 13
- Hazleton 13
- Highland Park 13
- Hilldale 13
- Hudson 13
- Hughestown 13
- Hughesville 13
- Hyde 13
- Indiana 13
- Inkerman 13
- Kingston 13
- Laflin 13
- Larksville 13
- Laurys Station 13
- Lewistown 13
- Light Street 13
- Linntown 13
- Mechanicsville 13
- Mifflinburg 13
- Mifflinville 13
- Milroy 13
- Monroe 13
- Montgomery 13
- Moosic 13
- Mountain Top 13
- Muncy 13
- Nanticoke 13
- Nazareth 13
- Nescopeck 13
- Nesquehoning 13
- New Columbia 13
- North Warren 13
- Old Forge 13
- Old Orchard 13
- Osceola Mills 13
- Palmer Heights 13
- Palmerton 13
- Plains 13
- Plymouth 13
- Raubsville 13
- Riverside 13
- Russell 13
- Shavertown 13
- Sheffield 13
- Swoyersville 13
- Tatamy 13
- Trucksville 13
- Tunkhannock 13
- Upper Saint Clair 13
- Walnutport 13
- Warren 13
- Watsontown 13
- Weatherly 13
- Weissport East 13
- West Easton 13
- West Hazleton 13
- West Pittston 13
- West Wyoming 13
- Wyoming 13
- Yeagertown 13
- Youngsville 13
- Altoona 12
- Arlington Heights 12
- Athens 12
- Avis 12
- Bangor 12
- Big Bass Lake 12
- Blossburg 12
- Boalsburg 12
- Brodheadsville 12
- Canton 12
- Chinchilla 12
- Clarks Green 12
- Clarks Summit 12
- Clearfield 12
- Conashaugh Lakes 12
- Dalton 12
- Duboistown 12
- Economy 12
- Effort 12
- Emerald Lakes 12
- Erie 12
- Faxon 12
- Furlong 12
- Glenshaw 12
- Gold Key Lake 12
- Houserville 12
- Indian Mountain Lake 12
- Jersey Shore 12
- Kane 12
- Kenmar 12
- Laporte 12
- Lemont 12
- Linglestown 12
- Mansfield 12
- Montoursville 12
- Moscow 12
- Mount Pocono 12
- Mountainhome 12
- Park Forest Village 12
- Penn Estates 12
- Philipsburg 12
- Pine Grove Mills 12
- Pine Ridge 12
- Pocono Ranch Lands 12
- Roseto 12
- Saw Creek 12
- Saylorsburg 12
- Sayre 12
- Sierra View 12
- South Waverly 12
- South Williamsport 12
- Springdale 12
- Stroudsburg 12
- Sun Valley 12
- Sunrise Lake 12
- Susquehanna 12
- Taylor 12
- Toftrees 12
- Towamensing Trails 12
- Towanda 12
- Troy 12
- Wellsboro 12
- White Haven 12
- Wind Gap 12
- Bell Acres 11
- Bellefonte 11
- Bentleyville 11
- Carbondale 11
- Castanea 11
- Centre Hall 11
- Doylestown 11
- Dunnstown 11
- Edgeworth 11
- Elkland 11
- Flemington 11
- Forest City 11
- Galeton 11
- Hallstead 11
- Hellertown 11
- Hemlock Farms 11
- Johnsonburg 11
- Lock Haven 11
- Mayfield 11
- Milesburg 11
- Mill Hall 11
- Mount Cobb 11
- Olyphant 11
- Penfield 11
- Pleasant Gap 11
- Renovo 11
- Ridgway 11
- Saint Marys 11
- Simpson 11
- The Hideout 11
- Wallenpaupack Lake Estates 11
- Waymart 11
- Westfield 11
- Zion 11
- Bear Rocks 10
- Bradford 10
- Coudersport 10
- Emporium 10
- Foster Brook 10
- Port Allegany 10
- Prospect 10
- Shinglehouse 10
- Smethport 10
- Lawson Heights 8
- Meadville 8
- Jeannette 6
AQI US, Metric