♦ Carcinogen
Ethylene oxide
CAS # 75-21-8
1,935,188 lbs total reported releases across all facilities and years.
Facilities listed below reported releases of this chemical to the EPA Toxic Release Inventory (TRI). Quantities are self-reported annual totals in pounds, broken out by release pathway. Click any facility name for its full compliance profile.
National Release Trend (2015–2024)
+59% overall
| Year | Total Released (lbs) | Reporting Facilities | vs Prior Year |
|---|---|---|---|
| 2015 | 236,712 | 116 | — |
| 2016 | 248,954 | 117 | +5% |
| 2017 | 164,639 | 105 | -34% |
| 2018 | 243,443 | 107 | +48% |
| 2019 | 20,375 | 41 | -92% |
| 2020 | 146,910 | 114 | +621% |
| 2021 | 166,126 | 118 | +13% |
| 2022 | 175,600 | 145 | +6% |
| 2023 | 156,893 | 143 | -11% |
| 2024 | 375,536 | 150 | +139% |
Top Releasing Industries
| Industry Sector | Total Released (lbs) | Facilities |
|---|---|---|
| Manufacturing | 1,604,036 | 144 |
| Administrative and Support and Waste Management | 320,810 | 24 |
| Professional, Scientific, and Technical Services | 4,650 | 1 |
| Wholesale Trade | 2,017 | 3 |
| Health Care and Social Assistance | 465 | 2 |
| Public Administration | 5 | 1 |
| Facility | Location | Year | Total (lbs) | Air | Water |
|---|---|---|---|---|---|
| FUCHS NORTH AMERICA | HAMPSTEAD, MD | 2024 | — | — | — |
| ALCON RESEARCH, LTD., LESAGE | LESAGE, WV | 2024 | — | — | — |
| WESTLAKE CHEMICALS & VINYLS LLC - PLAQUEMINE FACILITY | PLAQUEMINE, LA | 2024 | — | — | — |
| HERITAGE THERMAL SERVICES | EAST LIVERPOOL, OH | 2024 | — | — | — |
| CUSTOMED, INC. | FAJARDO, PR | 2024 | — | — | — |
| OCCIDENTAL CHEMICAL CORPORATION - GEISMAR FACILITY | GEISMAR, LA | 2024 | — | — | — |
| US CHEMICAL | WATERTOWN, WI | 2024 | — | — | — |
| SHINTECH PLAQUEMINE PLANT | PLAQUEMINE, LA | 2024 | — | — | — |
| ELE CORPORATION | MCCOOK, IL | 2024 | — | — | — |
| (VEOLIA) ELEMENTAL ENVIRONMENTAL SOLUTIONS LLC - GUM SPRINGS PLANT | ARKADELPHIA, AR | 2024 | 256,229 | 0 | — |
| INDORAMA VENTURES OXIDES - PORT NECHES OPERATIONS | PORT NECHES, TX | 2024 | 14,586 | 14,586 | — |
| STERILIZATION SERVICES OF VIRGINIA | RICHMOND, VA | 2024 | 8,995 | 8,995 | — |
| BASF CORP - GEISMAR SITE | GEISMAR, LA | 2024 | 8,380 | 8,380 | — |
| EQUISTAR CHEMICALS | PASADENA, TX | 2024 | 7,535 | 7,535 | — |
| EASTMAN CHEMICAL CO - LONGVIEW OPERATIONS | LONGVIEW, TX | 2024 | 7,277 | 7,238 | 31 |
| UNION CARBIDE CORP - ST CHARLES PLANT | HAHNVILLE, LA | 2024 | 6,894 | 6,763 | 131 |
| BRASKEM AMERICA SEADRIFT OPERATIONS | SEADRIFT, TX | 2024 | 5,006 | 5,006 | — |
| SASOL CHEMICALS (USA) LLC - LAKE CHARLES CHEMICAL COMPLEX | WESTLAKE, LA | 2024 | 4,394 | 4,394 | — |
| DIVERSEY INC. - FLORENCE | FLORENCE, KY | 2024 | 3,859 | 3,859 | — |
| LACC LLC US - ETHYLENE & DERIVATIVES PLANT | WESTLAKE, LA | 2024 | 3,527 | 3,527 | — |
| LYONDELL CHEMICAL CHANNELVIEW | CHANNELVIEW, TX | 2024 | 3,097 | 3,097 | — |
| THE DOW CHEMICAL COMPANY - LOUISIANA OPERATIONS | PLAQUEMINE, LA | 2024 | 2,433 | 2,433 | — |
| VP RACING FUELS INC | SAN ANTONIO, TX | 2024 | 2,413 | 2,413 | — |
| EDWARDS LIFESCIENCES CORPORATION | ANASCO, PR | 2024 | 2,360 | 2,360 | — |
| SHELL CHEMICAL LP - GEISMAR PLANT | GEISMAR, LA | 2024 | 2,357 | 2,357 | — |
| BAKER PETROLITE CORP | SAND SPRINGS, OK | 2024 | 2,125 | 2,125 | — |
| CLEAR LAKE PLANT | PASADENA, TX | 2024 | 2,059 | 2,059 | — |
| THE DOW CHEMICAL COMPANY TEXAS OPERATIONS | FREEPORT, TX | 2024 | 1,925 | 1,085 | 840 |
| MIDWEST STERILIZATION CORPORATION - LAREDO | LAREDO, TX | 2024 | 1,713 | 1,713 | — |
| MONUMENT CHEMICAL KENTUCKY LLC | BRANDENBURG, KY | 2024 | 1,521 | 1,515 | 6 |
| WESTLAKE VINYLS, INC. | CALVERT CITY, KY | 2024 | 1,325 | 1,325 | — |
| GULF COAST GROWTH VENTURES LLC | GREGORY, TX | 2024 | 1,132 | 1,132 | — |
| STERI-TECH, INC. | SALINAS, PR | 2024 | 1,039 | 1,039 | — |
| ASHLAND SPECIALTY INGREDIENTS GP | HOPEWELL, VA | 2024 | 1,005 | 1,005 | — |
| TERUMO BCT | DENVER, CO | 2024 | 968 | 968 | — |
| EVONIK CORP - RESERVE PLANT | RESERVE, LA | 2024 | 902 | 902 | — |
| SPECIALTY PRODUCTS US, LLC - POLYOX PLANT | INSTITUTE, WV | 2024 | 878 | 878 | — |
| INTERNATIONAL STERILIZATION LABORATORY | GROVELAND, FL | 2024 | 860 | 860 | — |
| BD (BECTON. DICKINSON AND COMPANY) | MADISON, GA | 2024 | 849 | 849 | — |
| BARD CR | COVINGTON, GA | 2024 | 806 | 806 | — |
| BASF CORPORATION | SPARTANBURG, SC | 2024 | 802 | 802 | — |
| UNION CARBIDE CORPORATION, INSTITUTE PLANT | INSTITUTE, WV | 2024 | 720 | 720 | — |
| FORMOSA PLASTICS CORPORATION, TEXAS | POINT COMFORT, TX | 2024 | 661 | 661 | — |
| STERIGENICS US LLC | GRAND PRAIRIE, TX | 2024 | 641 | 641 | — |
| GRIFFITH MICRO SCIENCE INC | ONTARIO, CA | 2024 | 612 | 612 | — |
| NALCO CHAMPION | FREEPORT, TX | 2024 | 544 | 544 | — |
| HARCROS CHEMICALS INC. - KANSAS CITY | KANSAS CITY, KS | 2024 | 528 | 528 | — |
| ROYAL STERILIZATION SYS | NEW TAZEWELL, TN | 2024 | 500 | 500 | — |
| HUNTSMAN PETROCHEMICAL LLC | DAYTON, TX | 2024 | 466 | 466 | — |
| B BRAUN MED ALLENTOWN FAC | ALLENTOWN, PA | 2024 | 447 | 447 | — |