EPA Air · by state
Air-emissions sources in Pennsylvania
- 8,754Facilities
By emissions classification in Pennsylvania
High-priority violations in Pennsylvania
370 sources in Pennsylvania carry a current high-priority Clean Air Act violation.
Counties in Pennsylvania
- Adams County 63
- Allegheny County 1,374
- Armstrong County 79
- Beaver County 95
- Bedford County 37
- Berks County 216
- Blair County 105
- Bradford County 138
- Bucks County 417
- Butler County 187
- Cambria County 106
- Cameron County 15
- Carbon County 30
- Centre County 84
- Chester County 235
- Clarion County 41
- Clearfield County 99
- Clinton County 46
- Columbia County 56
- Crawford County 61
- Cumberland County 145
- Dauphin County 155
- Delaware County 253
- Elk County 61
- Erie County 137
- Fayette County 73
- Forest County 21
- Franklin County 94
- Fulton County 12
- Greene County 131
- Huntingdon County 21
- Indiana County 103
- Jefferson County 64
- Juniata County 15
- Lackawanna County 118
- Lancaster County 251
- Lawrence County 85
- Lebanon County 94
- Lehigh County 149
- Luzerne County 217
- Lycoming County 168
- McKean County 70
- Mercer County 108
- Mifflin County 21
- Monroe County 45
- Montgomery County 474
- Montour County 17
- Northampton County 154
- Northumberland County 107
- Perry County 22
- Philadelphia County 461
- Pike County 13
- Potter County 35
- Schuylkill County 99
- Snyder County 47
- Somerset County 63
- Sullivan County 12
- Susquehanna County 206
- Tioga County 75
- Undetermined County 91
- Union County 38
- Venango County 45
- Warren County 46
- Washington County 223
- Wayne County 27
- Westmoreland County 158
- Wyoming County 47
- York County 199
Industries in Pennsylvania
Sources are grouped by the first industry code on the facility record.
- Repair and maintenance (NAICS 8111) 1,008
- Personal and laundry services (NAICS 8123) 957
- Oil and gas extraction (NAICS 2111) 821
- Motor vehicle and parts dealers (NAICS 4411) 375
- Educational services (NAICS 6111) 338
- Gasoline stations (NAICS 4471) 328
- Mining and quarrying (NAICS 2123) 284
- Personal and laundry services (NAICS 8122) 259
- Mining support (NAICS 2131) 225
- Petroleum and coal products manufacturing (NAICS 3241) 159
- Hospitals (NAICS 6221) 151
- Fabricated metal product manufacturing (NAICS 3328) 122
- Pipeline transportation (NAICS 4862) 120
- Utilities (NAICS 2211) 117
- Plastics and rubber products manufacturing (NAICS 3261) 110
- Merchant wholesalers, durable goods (NAICS 4231) 102
- Fabricated metal product manufacturing (NAICS 3323) 86
- Printing and related support (NAICS 3231) 84
- Primary metal manufacturing (NAICS 3315) 81
- Wood product manufacturing (NAICS 3219) 81
- Merchant wholesalers, nondurable goods (NAICS 4247) 81
- Real estate (NAICS 5311) 78
- Paper manufacturing (NAICS 3222) 74
- Waste management and remediation (NAICS 5622) 74
- Nonmetallic mineral product manufacturing (NAICS 3273) 72
- Nonmetallic mineral product manufacturing (NAICS 3279) 61
- Furniture and related product manufacturing (NAICS 3371) 60
- Utilities (NAICS 2213) 60
- Fabricated metal product manufacturing (NAICS 3329) 58
- Chemical manufacturing (NAICS 3251) 54
- Educational services (NAICS 6113) 52
- Merchant wholesalers, durable goods (NAICS 4239) 51
- Primary metal manufacturing (NAICS 3311) 50
- Miscellaneous manufacturing (NAICS 3399) 44
- Mining and quarrying (NAICS 2121) 43
- Food manufacturing (NAICS 3111) 40
- Justice, public order and safety (NAICS 9221) 40
- Chemical manufacturing (NAICS 3259) 39
- Fabricated metal product manufacturing (NAICS 3321) 39
- Food manufacturing (NAICS 3119) 37
- Primary metal manufacturing (NAICS 3312) 36
- Religious, grantmaking and similar organizations (NAICS 8131) 35
- Machinery manufacturing (NAICS 3339) 35
- Wood product manufacturing (NAICS 3211) 35
- Nonmetallic mineral product manufacturing (NAICS 3271) 33
- Specialty trade contractors (NAICS 2389) 32
- Fabricated metal product manufacturing (NAICS 3324) 32
- Machinery manufacturing (NAICS 3335) 31
- Rental and leasing services (NAICS 5321) 31
- Pipeline transportation (NAICS 4869) 31
- Transit and ground passenger transportation (NAICS 4851) 30
- Primary metal manufacturing (NAICS 3314) 30
- Chemical manufacturing (NAICS 3255) 29
- Utilities (NAICS 2212) 29
- Transportation equipment manufacturing (NAICS 3362) 29
- Motor vehicle and parts dealers (NAICS 4413) 28
- Professional, scientific and technical services (NAICS 5419) 27
- Chemical manufacturing (NAICS 3252) 27
- Nonmetallic mineral product manufacturing (NAICS 3272) 26
- Food manufacturing (NAICS 3118) 25
- Electrical equipment and appliance manufacturing (NAICS 3359) 25
- Chemical manufacturing (NAICS 3254) 25
- Plastics and rubber products manufacturing (NAICS 3262) 24
- Fabricated metal product manufacturing (NAICS 3327) 23
- Beverage and tobacco manufacturing (NAICS 3121) 23
- Fabricated metal product manufacturing (NAICS 3326) 22
- Primary metal manufacturing (NAICS 3313) 22
- Electrical equipment and appliance manufacturing (NAICS 3353) 22
- Machinery manufacturing (NAICS 3331) 21
- Furniture and related product manufacturing (NAICS 3372) 21
- Telecommunications (NAICS 5171) 20
- Computer and electronic product manufacturing (NAICS 3344) 20
- Professional, scientific and technical services (NAICS 5417) 19
- Motor vehicle and parts dealers (NAICS 4412) 19
- Computer and electronic product manufacturing (NAICS 3345) 19
- Warehousing and storage (NAICS 4931) 19
- Food manufacturing (NAICS 3112) 18
- Truck transportation (NAICS 4841) 18
- Merchant wholesalers, nondurable goods (NAICS 4246) 17
- Professional, scientific and technical services (NAICS 5414) 17
Air inspections in Pennsylvania, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 5,287
- 2025 7,277
- 2024 7,215
- 2023 6,551
- 2022 6,724
- 2021 6,954
- 2020 6,491
- 2019 6,635
- 2018 6,336
- 2017 6,410
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| ANSLEY & LEWIS INC | Minor source | No |
| ANSON MOLD & MFG INC/ERIE | Minor source | No |
| ANSPACH USED AUTO PARTS, INC. | Minor source | No |
| ANTHONY COAL AND CONSTRUCTION | Minor source | No |
| ANTHRACITE IND/SUNBURY PLT | Synthetic minor source | No |
| ANTONELLIS CLNR/NORRISTOWN | Minor source | No |
| ANYTIME TRUCK & TIRE | Minor source | No |
| ANYTIME TRUCK & TIRE SERVICE | Minor source | No |
| AOLVIN'S HONDA SALES | Minor source | No |
| AP AUTOMOTIVE | Minor source | No |
| APEX COLLISION LLC/MIDDLETOWN | Minor source | No |
| APEX HOMES OF PA LLC/MIDDLECREEK | Minor source | No |
| APEX TOOL GROUP LLC/YORK | Minor source | No |
| APEX URETHANE MILLWORK LLC/RED LION | Minor source | No |
| APOLLO METALS LTD/BETHLEHEM | Synthetic minor source | Yes |
| APOLLO RESOURCES LLC CLAWSON COMP STA/INDIANA | Minor source | Yes |
| APOLLO RESOURCES LLC/HRIBAL COMP STA | Synthetic minor source | No |
| APOLLO VOLKSWAGEN, INC. | Minor source | No |
| APPALACHIA MIDSTREAM SVC LLC/AUBURN COMP STA | Synthetic minor source | No |
| APPALACHIA MIDSTREAM SVC LLC/AUBURN ROME INTERCONNECT | Minor source | No |
| APPALACHIA MIDSTREAM SVC LLC/CHERRY COMP STA | Synthetic minor source | No |
| APPALACHIA MIDSTREAM SVC LLC/GRANVILLE STA 2 | Synthetic minor source | No |
| APPALACHIA MIDSTREAM SVC LLC/LIBERTY COMP STA | Synthetic minor source | No |
| APPALACHIA MIDSTREAM SVC LLC/LIBERTY INTERCONNECT | Minor source | No |
| APPALACHIA MIDSTREAM SVC LLC/RATTLESNAKE HILL COMP STA | Synthetic minor source | No |
| APPALACHIA MIDSTREAM SVC LLC/RED FOX CDP | Synthetic minor source | No |
| APPALACHIA MIDSTREAM SVC LLC/STAGECOACH COMP STA | Synthetic minor source | No |
| APPALACHIA MIDSTREAM SVC LLC/STONEHOUSE COMP STA | Synthetic minor source | No |
| APPALACHIA MIDSTREAM SVC LLC/WILMOT COMP STA | Synthetic minor source | No |
| APPALACHIA MIDSTREAM/EVANCHICK COMP STA | Minor source | No |
| APPALACHIA MIDSTREAM/GRANVILLE STA | Minor source | No |
| APPALACHIAN MIDSTREAM/ FORKSTON INTERCONNECT | Minor source | No |
| APPALACHIAN MIDSTREAM/ OVERFIELD INTERCONNECT | Minor source | No |
| APPALACHIAN STONE INC/REED TWP | Minor source | No |
| APPELLATION CONST SVC LLC/WILLIAMSPORT PLT | Minor source | No |
| APPLE AUTO SALES | Minor source | No |
| APPLE CLNR/NEWTOWN BORO | Minor source | No |
| APPLE EQUIPMENT INC. | No | |
| APPLIED COATING SOLUTIONS/ERIE | Minor source | No |
| APPLIED TECHNICAL RESOURCES ,INC. | Minor source | No |
| APTER INDUSTRIES | Minor source | No |
| APX IND COATINGS INC/ST THOMAS | Minor source | No |
| AQUA PA INC/PICKERING WATER TRMT PLT | Synthetic minor source | No |
| AQUA PA/CRUM CREEK WATER TRMT PLT | Minor source | Yes |
| AQUA PA/NESHAMINY WATER TRMT FAC | Minor source | No |
| AQUATIC CO/W DONEGAL TWP | Major source | No |
| ARCHER DANIELS MIDLAND CO/FALLS TWP | Minor source | No |
| ARCONIC INC. CORPORATE CENTER | Minor source | No |
| ARCONIC TECH LLC/ARCONIC TECH CENTER | Minor source | No |
| ARCONIC US LLC/LANCASTER | Major source | Yes |
| ARCOS IND LLC/MT CARMEL PLT | Minor source | No |
| ARDAGH GLASS INC/PORT ALLEGANY PLT | Major source | Yes |
| ARDEN LDFL/CHARTIERS TWP | Major source | No |
| ARDENT MILLS LLC/MARTINS CREEK FLOUR MILL | Synthetic minor source | No |
| ARDENT MILLS LLC/MT POCONO | Synthetic minor source | No |
| ARDENT MILLS LLC/RED LION FLOUR MILL | Minor source | No |
| ARDEX LAB INC/CLEANING & POLISHING PREP | Minor source | No |
| ARDEX LP/ALIQUIPPA | Minor source | No |
| ARDMORE AUTO BODY INC/ARDMORE | Minor source | No |
| ARDMORE AUTO CARE | Minor source | No |
| ARDSLEY CLNR/GLENSIDE | Minor source | No |
| ARFAN INC/PALMERTON | Minor source | No |
| ARGOS USA/BESSEMER PLT | Minor source | No |
| ARIA ENERGY EAST LLC | Synthetic minor source | No |
| ARIA HEALTH FRANKFORD HOSP/BUCKS CNTY CAMPUS | Minor source | No |
| ARIA HEALTH/TORRESDALE CAMP | Synthetic minor source | No |
| ARKEMA INC/BIRDSBORO | Minor source | No |
| ARKEMA INC/KING OF PRUSSIA | Synthetic minor source | No |
| ARKEMA INC/WEST CHESTER | Major source | Yes |
| ARLOTTI BROTHERS CLEANERS | Minor source | No |
| ARMEN CHEVROLET/ARDMORE | Minor source | No |
| ARMOLOY OF WESTERN PENNSYLVANIA INC. | Minor source | No |
| ARMSTRONG CEMENT & SUPPLY/WINFIELD | Major source | Yes |
| ARMSTRONG POWER/S BEND | Major source | No |
| ARMSTRONG TERM/SCHENLEY | Minor source | No |
| ARMSTRONG WORLD IND /CORP CAMPUS | Minor source | No |
| ARMSTRONG WORLD IND INC/MARIETTA CEILING PLT | Major source | No |
| ARNOLD PONTIAC & OLDSMOBILE | Minor source | No |
| ARROW CONCRETE COMPANY | Minor source | No |
| ARROW UNITED IND/WYALUSING BORO | Minor source | No |
| ARTEX, INC. | Minor source | No |
| ARTISTIC AUTO BODY/PROSPECT PARK | Minor source | No |
| ARTISTIC CLEANERS | Minor source | No |
| ARXADA LLC/WILLIAMSPORT PLT | Synthetic minor source | No |
| ASBURY HEALTH CENTER | Minor source | No |
| ASC ENGINEERED SOLUTIONS LLC/COLUMBIA FKA ANVIL | Major source | No |
| ASCENSUS EVANS CITY SITE | Minor source | No |
| ASHBOURNE CLEANERS | Minor source | No |
| ASHBOURNE CLEANERS | Minor source | No |
| ASHBOURNE CLNR/CHELTENHAM TWP | Minor source | No |
| ASHBY CLNR/DOYLESTOWN | Minor source | No |
| ASHLAND CHEMICAL | Minor source | No |
| ASHLAND FOUNDRY & MACHINE WORKS LLC/ASHLAND | Minor source | No |
| ASHLAND INC TERM FKA SUNOCO/PLASTICIZER | Synthetic minor source | No |
| ASHLAND PETRO CO/MEADVILLE | Minor source | No |
| ASHLAND-SHOMOKIN BUS, INC. | Minor source | No |
| ASI TECH INC/MONTGOMERY TWP | Minor source | No |
| ASM HOLDCO INC/CONTACT TECHNOLOGIES INC | Minor source | Yes |
| ASPEN HILL PET CREMATORY/MERCER | Minor source | No |
| ASSA ABLOY SVC CTR/FORKS TWP | Minor source | No |
Figures from EPA’s ICIS-AIR download.