EPA Air · by county
Air-emissions sources in Cook County, Illinois
- 4,231Facilities
Every stationary source in Cook County, Illinois that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
By emissions classification in Cook County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
- Minor source 4,043
- Major source 80
- Synthetic minor source 72
Inspections in Cook County, 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 — inspections 80
- 2025 — inspections 167
- 2024 — inspections 161
- 2023 — inspections 128
- 2022 — inspections 154
- 2021 — inspections 212
- 2020 — inspections 135
- 2019 — inspections 96
- 2018 — inspections 93
- 2017 — inspections 141
Other counties in Illinois
Every county in the state with at least three sources on file.
- Bureau County 63
- Calhoun County 8
- Carroll County 52
- Cass County 30
- Champaign County 266
- Christian County 68
- Clark County 38
- Clay County 50
- Clinton County 79
- Coles County 99
- Crawford County 42
- Cumberland County 17
- De Witt County 43
- DeKalb County 107
- Douglas County 50
- DuPage County 918
- Edgar County 52
- Edwards County 16
- Effingham County 99
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| OASIS AUTO BODY | Minor source | No |
| OASIS AUTO SERVICE INC | Minor source | No |
| OCCIDENTAL CHEMICAL CORP | Synthetic minor source | No |
| OF AUTO REPAIR INC | No | |
| OGDEN AVENUE MATERIALS INC | Minor source | No |
| OGDEN MART | Minor source | No |
| OGDEN MINUTEMAN CITGO - OGDEN AMSTAR | Minor source | No |
| OHARE AIRPORT | Minor source | No |
| OHARE IAP AIR RESERVE STATION | Minor source | No |
| OK BODY SHOP | Minor source | No |
| OK CLEANERS | Minor source | No |
| OK CLEANERS | Minor source | No |
| OK GAS & FOOD MART | Minor source | No |
| OLD ORCHARD COUNTRY CLUB | Minor source | No |
| OLDCASTLE INFRASTRUCTURE | Minor source | No |
| OLMSTEAD CLEANERS | Minor source | No |
| OLTHOFF INC | Minor source | No |
| OLYMPIA CLEANERS OF WESTCHESTER | Minor source | No |
| OLYMPIA FIELDS COUNTRY CLUB | Minor source | No |
| OLYMPIC CLEANERS | Minor source | No |
| OM CHICAGO HEIGHTS OIL INC | Minor source | No |
| OMAHA TRACK INC | Minor source | No |
| OMEGA AUTOTECH INC | Minor source | No |
| OMEGA DEMOLITION | Minor source | No |
| OMEGA DEMOLITION CORP | Minor source | No |
| OMEGA III LLC | Minor source | No |
| OMEGA PLATING | Minor source | No |
| OMNI MATERIALS PORT AUTHORITY TERMINAL | Minor source | No |
| ON THE GO CLARK | Minor source | No |
| ONE HOUR CLEANERS | Minor source | No |
| ONE HOUR CLEANERS | Minor source | No |
| ONE HOUR CLEANERS | Minor source | No |
| ONE HOUR PRIME CLEANERS | Minor source | No |
| ONE NORTH WACKER LLC | Minor source | No |
| ONE STOP | Minor source | No |
| OPW MGMT SYSTEMS | Minor source | No |
| ORANGE CRUSH LLC | Minor source | No |
| ORANGE CRUSH LLC | Synthetic minor source | No |
| OREMUS MATERIAL LLC | Minor source | No |
| OREMUS MATERIAL LLC | Minor source | No |
| ORICA USA INC | Minor source | No |
| ORIGINAL CLEANERS | Minor source | No |
| ORIGINAL FERRARA INC | Minor source | No |
| ORION INDUSTRIES & RELATED ENTITIES | Minor source | No |
| ORLAND BP INC | Minor source | No |
| ORLAND PARK VILLAGE OF PUBLIC WORKS | Minor source | No |
| ORLANDI STATUARY | Synthetic minor source | No |
| ORORA VISUAL LLC | Minor source | No |
| OSCAR AUTO BODY | Minor source | No |
| OSCO INC | Minor source | No |
| OSF HEALTHCARE SYSTEM | Major source | No |
| OSI INDUSTRIES LLC | Minor source | No |
| OSI INDUSTRIES LLC | Minor source | No |
| OSI INDUSTRIES LLC CHICAGO CAMPUS | Minor source | No |
| OTTOS COLLISION SVC | Minor source | No |
| OWENS CORNING SCIENCE AND TECHNOLOGY LLC | Minor source | No |
| OWENS-CORNING CORP | Major source | Yes |
| OZINGA BROS INC | Minor source | No |
| OZINGA BROS INC | Minor source | No |
| OZINGA CHICAGO READY MIX CO | Minor source | No |
| OZINGA CHICAGO RMC INC | Minor source | No |
| OZINGA CHICAGO RMC INC | Minor source | No |
| OZINGA CHICAGO RMC INC | Minor source | No |
| OZINGA ILLINOIS RMC INC | Minor source | No |
| OZINGA ILLINOIS RMC INC | Minor source | No |
| OZINGA MATERIALS AND LOGISTICS | Minor source | No |
| OZINGA READY MIX | Minor source | No |
| OZINGA READY MIX CO | Minor source | No |
| OZINGA READY MIX CONCRETE INC | Minor source | No |
| OZINGA READY MIX CONCRETE INC | Minor source | No |
| OZINGA READY MIX CONCRETE INC | Minor source | No |
| OZINGA READY MIX CONCRETE INC | Minor source | No |
| OZINGA READY MIX CONCRETE INC | Minor source | No |
| OZINGA READY-MIX CONCRETE INC | Minor source | No |
| OZINGA READY-MIX CONCRETE INC | Minor source | No |
| P & H AUTO BODY & SALES | Minor source | No |
| P & J CLEANERS | Minor source | No |
| P-MOR ENGINEERING CO | Minor source | No |
| P&G AUTOBODY & REBUILDERS INC | No | |
| P&G COLOR AUTO BODY | Minor source | No |
| PACE INDUSTRIES INC | Synthetic minor source | No |
| PACE SUBURBAN BUS | Minor source | No |
| PACE SUBURBAN BUS | Minor source | No |
| PACKAGING CORP OF AMERICA | Minor source | No |
| PACKAGING CORP OF AMERICA | Minor source | No |
| PACKAGING CORPORATION OF AMERICA DBA PCA-CHICAGO CONTAINER | Minor source | No |
| PACTIV LLC | Minor source | No |
| PACTIV LLC | Minor source | No |
| PACTIV LLC | Minor source | No |
| PALATINE POLICE DEPT | Minor source | No |
| PALATINE QUIK SHOP | Minor source | No |
| PALELLAS AUTO BODY INC | Minor source | No |
| PALMER COLLISION EXPERTS INC | Minor source | No |
| PALMER COLLISION EXPERTS INC | Minor source | No |
| PALMER HOUSE HILTON | Minor source | No |
| PALOS COUNTRY CLUB | Minor source | No |
| PALOS HEALTH | Minor source | No |
| PALOS MART INC | Minor source | No |
| PALOS PETROLEUM INC | Minor source | No |
| PAMCO PRINTED TAPE & LABEL CO | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.