♦ Carcinogen
Methyl isobutyl ketone
CAS # 108-10-1
26,404,992 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)
-12% overall
| Year | Total Released (lbs) | Reporting Facilities | vs Prior Year |
|---|---|---|---|
| 2015 | 2,824,772 | 529 | — |
| 2016 | 2,733,864 | 534 | -3% |
| 2017 | 2,921,176 | 527 | +7% |
| 2018 | 3,032,152 | 515 | +4% |
| 2019 | 1,542,820 | 281 | -49% |
| 2020 | 2,547,247 | 483 | +65% |
| 2021 | 2,664,272 | 483 | +5% |
| 2022 | 3,366,266 | 463 | +26% |
| 2023 | 2,298,171 | 445 | -32% |
| 2024 | 2,474,252 | 427 | +8% |
Top Releasing Industries
| Industry Sector | Total Released (lbs) | Facilities |
|---|---|---|
| Mining, Quarrying, and Oil and Gas Extraction | 0 | 1 |
| Transportation and Warehousing | 0 | 1 |
| Manufacturing | 25,478,364 | 599 |
| Administrative and Support and Waste Management | 565,408 | 36 |
| Public Administration | 252,788 | 4 |
| Wholesale Trade | 106,372 | 126 |
| Other Services | 1,500 | 1 |
| Construction | 559 | 1 |
Worst Water Discharge Exceedances
Facilities that exceeded their permit limits for this chemical in discharge monitoring reports
| Facility | Reported | Limit | Exceedance | Period |
|---|---|---|---|---|
|
CYTEC INDUSTRIES, INC., WILLOW ISLAND
WILLOW ISLAND, WV
|
14.39 kg/d | 2.32 | +522% | Jan 2015 |
|
CYTEC INDUSTRIES, INC., WILLOW ISLAND
WILLOW ISLAND, WV
|
14.39 kg/d | 5.81 | +148% | Jan 2015 |
| Facility | Location | Year | Total (lbs) | Air | Water |
|---|---|---|---|---|---|
| BAKELITE SYNTHETICS | LOUISVILLE, KY | 2024 | — | — | — |
| WEBB CHEMICAL SERVICE CORP | MUSKEGON HEIGHTS, MI | 2024 | — | — | — |
| ALCHEMIX | COLLEGE PARK, GA | 2024 | — | — | — |
| JACAM MFG. - ORGANOCLAY PROCESSING | STERLING, KS | 2024 | — | — | — |
| GM FLINT ENGINE OPERATIONS | FLINT, MI | 2024 | — | — | — |
| WILLIAMS-HAYWARD PROTECTIVE COATINGS INC | BEDFORD PARK, IL | 2024 | — | — | — |
| UNIVAR USA LLC/MORRISVILLE | MORRISVILLE, PA | 2024 | — | — | — |
| BRENNTAG MID-SOUTH INC | HENDERSON, KY | 2024 | — | — | — |
| SUPERIOR SOLVENTS & CHEMICALS | LOUISVILLE, KY | 2024 | — | — | — |
| UNIVAR SOLUTIONS USA INC | KANSAS CITY, KS | 2024 | — | — | — |
| GRAIN PROCESSING CORPORATION | MUSCATINE, IA | 2024 | — | — | — |
| PRODUCERS CHEMICAL CO | SUGAR GROVE, IL | 2024 | — | — | — |
| THE WHITAKER COMPANY | OCOEE, FL | 2024 | — | — | — |
| TEM-TEX SOLVENTS CORP | TEMPLE, TX | 2024 | — | — | — |
| BRENNTAG PACIFIC INC | SANTA FE SPRINGS, CA | 2024 | — | — | — |
| QUAKER CITY CHEMICALS | PHILADELPHIA, PA | 2024 | — | — | — |
| BRENNTAG NORTHEAST INC | READING, PA | 2024 | — | — | — |
| CHEMSOLV INC | ROANOKE, VA | 2024 | — | — | — |
| BRENNTAG GREAT LAKES, LLC-DISTRIBUTION | MENOMONEE FALLS, WI | 2024 | — | — | — |
| BRENNTAG MID-SOUTH INC. | DURHAM, NC | 2024 | — | — | — |
| TECHNICAL PRODUCTS, INC. (1318104328) | CLEVELAND, OH | 2024 | — | — | — |
| SUPERIOR SOLVENTS AND CHEMICALS - SPRINGFIELD FACILITY | SPRINGFIELD, MO | 2024 | — | — | — |
| WHITAKER OIL COMPANY | ATLANTA, GA | 2024 | — | — | — |
| HOBSON & MOTZER, INC. | DURHAM, CT | 2024 | — | — | — |
| SUPERIOR SOLVENTS & CHEMICALS | FAIRFIELD, OH | 2024 | — | — | — |
| CHEMISPHERE CORP | ST. LOUIS, MO | 2024 | — | — | — |
| SUPERIOR INDUSTRIAL SOLUTIONS RAIL SPUR | COWPENS, SC | 2024 | — | — | — |
| TRANS CHEMICAL CORP-TRANS CHEMICAL CORP | ST. LOUIS, MO | 2024 | — | — | — |
| SAMVARDHANA MOTHERSON REFLECTIC | MARYSVILLE, MI | 2024 | — | — | — |
| KEESHAN AND BOST CHEMICAL CO., INC. | MANVEL, TX | 2024 | — | — | — |
| BAYER MATERIALSCIENCE BAYTOWN | BAYTOWN, TX | 2024 | — | — | — |
| AW TEXAS | MARION, TX | 2024 | — | — | — |
| TILLEY DISTRIBUTION | MIDDLE RIVER, MD | 2024 | — | — | — |
| ALKEGEN | COUNCIL GROVE, KS | 2024 | — | — | — |
| UNIVAR USA INC. STEEL ROAD MORRISVILLE PA | MORRISVILLE, PA | 2024 | — | — | — |
| BRENNTAG MID-SOUTH INC | INDIANAPOLIS, IN | 2024 | — | — | — |
| DYSTAR LIMITED PARTNERSHIP | REIDSVILLE, NC | 2024 | — | — | — |
| K-SOLV | CHANNELVIEW, TX | 2024 | — | — | — |
| BLENTECH | HOUSTON, TX | 2024 | — | — | — |
| SUPERIOR OIL COMPANY, INC. | OLD HICKORY, TN | 2024 | — | — | — |
| ARROCHEM INC | MOUNT HOLLY, NC | 2024 | — | — | — |
| SIERRA CORP | MINNETONKA, MN | 2024 | — | — | — |
| KMCC SPLITTER FACILITY | GALENA PARK, TX | 2024 | — | — | — |
| ARNETTE POLYMERS LLC | RICHMOND, MO | 2024 | — | — | — |
| THE LUBRIZOL CORPORATION, DEER PARK PLANT | DEER PARK, TX | 2024 | — | — | — |
| NEXEO SOLUTIONS LLC DORAVILLE | DORAVILLE, GA | 2024 | — | — | — |
| ASHLAND DISTRIBUTION CO | GARLAND, TX | 2024 | — | — | — |
| VALLEY SOLVENT | CORPUS CHRISTI, TX | 2024 | — | — | — |
| ATI MILLERSBURG | ALBANY, OR | 2024 | 641,379 | 641,379 | — |
| EASTMAN CHEMICAL CO | KINGSPORT, TN | 2024 | 177,673 | 177,440 | 226 |