♦ Carcinogen
4,4'-Methylenedianiline
CAS # 101-77-9
1,709,858 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)
-50% overall
| Year | Total Released (lbs) | Reporting Facilities | vs Prior Year |
|---|---|---|---|
| 2015 | 314,633 | 24 | — |
| 2016 | 143,176 | 20 | -54% |
| 2017 | 163,621 | 20 | +14% |
| 2018 | 222,623 | 20 | +36% |
| 2019 | 4,307 | 10 | -98% |
| 2020 | 68,606 | 20 | +1493% |
| 2021 | 248,673 | 18 | +262% |
| 2022 | 267,939 | 19 | +8% |
| 2023 | 118,250 | 19 | -56% |
| 2024 | 158,029 | 20 | +34% |
Top Releasing Industries
| Industry Sector | Total Released (lbs) | Facilities |
|---|---|---|
| Manufacturing | 1,709,320 | 22 |
| Administrative and Support and Waste Management | 538 | 9 |
| Facility | Location | Year | Total (lbs) | Air | Water |
|---|---|---|---|---|---|
| NOV FIBER GLASS SYSTEMS BURKBURNETT | BURKBURNETT, TX | 2024 | — | — | — |
| URETHANE SYSTEMS USA LLC | GASTONIA, NC | 2024 | — | — | — |
| EVONIK CORPORATION | LOS ANGELES, CA | 2024 | — | — | — |
| TUBO - FGS, L.L.C. (FIBER GLASS SYSTEMS) | LITTLE ROCK, AR | 2024 | — | — | — |
| BAYER MATERIALSCIENCE BAYTOWN | BAYTOWN, TX | 2024 | — | — | — |
| ELANTAS PDG, INC. | SAINT LOUIS, MO | 2024 | — | — | — |
| RUBICON LLC - GEISMAR FACILITY | GEISMAR, LA | 2024 | 148,588 | 18 | — |
| FUTURE PIPE INDUSTRIES | HOUSTON, TX | 2024 | 3,821 | 3,821 | — |
| THE DOW CHEMICAL COMPANY TEXAS OPERATIONS | FREEPORT, TX | 2024 | 2,362 | 40 | 2,322 |
| BASF CORP - GEISMAR SITE | GEISMAR, LA | 2024 | 1,866 | 1,318 | 548 |
| EVONIK CORPORATION | HAYSVILLE, KS | 2024 | 1,000 | 0 | — |
| HUNTSMAN ADVANCED MATERIALS AMERICAS INC | MC INTOSH, AL | 2024 | 285 | 285 | — |
| CLEAN HARBORS ENVIRONMENTAL SERVICES INC | KIMBALL, NE | 2024 | 80 | 80 | — |
| HERAEUS EPURIO LLC | VANDALIA, OH | 2024 | 19 | 19 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2024 | 5 | 5 | — |
| DUOLINE TECHNOLOGIES LLC | GILMER, TX | 2024 | 2 | 2 | — |
| SYENSQO SPECIALTY POLYMERS USA, LLC | GREENVILLE, SC | 2024 | 1 | 1 | — |
| CLEAN HARBORS DEER PARK LLC | LA PORTE, TX | 2024 | 0 | 0 | — |
| CLEAN HARBORS EL DORADO LLC | EL DORADO, AR | 2024 | 0 | 0 | — |
| CLEAN HARBORS ARAGONITE LLC | GRANTSVILLE, UT | 2024 | 0 | 0 | — |
| URETHANE SYSTEMS USA LLC | GASTONIA, NC | 2023 | — | — | — |
| NOV FIBER GLASS SYSTEMS BURKBURNETT | BURKBURNETT, TX | 2023 | — | — | — |
| BAYER MATERIALSCIENCE BAYTOWN | BAYTOWN, TX | 2023 | — | — | — |
| EVONIK CORPORATION | LOS ANGELES, CA | 2023 | — | — | — |
| ELANTAS PDG, INC. | SAINT LOUIS, MO | 2023 | — | — | — |
| EVONIK CORPORATION | HAYSVILLE, KS | 2023 | — | — | — |
| RUBICON LLC - GEISMAR FACILITY | GEISMAR, LA | 2023 | 110,018 | 18 | — |
| FUTURE PIPE INDUSTRIES | HOUSTON, TX | 2023 | 3,960 | 3,960 | — |
| THE DOW CHEMICAL COMPANY TEXAS OPERATIONS | FREEPORT, TX | 2023 | 2,086 | 28 | 2,058 |
| BASF CORP - GEISMAR SITE | GEISMAR, LA | 2023 | 1,345 | 1,307 | 38 |
| HUNTSMAN ADVANCED MATERIALS AMERICAS INC | MC INTOSH, AL | 2023 | 630 | 630 | — |
| INSPEC FOAMS INC | MAGNOLIA, AR | 2023 | 119 | 119 | — |
| CLEAN HARBORS ENVIRONMENTAL SERVICES INC | KIMBALL, NE | 2023 | 65 | 65 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2023 | 13 | 13 | — |
| TUBO - FGS, L.L.C. (FIBER GLASS SYSTEMS) | LITTLE ROCK, AR | 2023 | 10 | 5 | 5 |
| DUOLINE TECHNOLOGIES LLC | GILMER, TX | 2023 | 2 | 2 | — |
| SYENSQO SPECIALTY POLYMERS USA, LLC | GREENVILLE, SC | 2023 | 1 | 1 | — |
| CLEAN HARBORS DEER PARK LLC | LA PORTE, TX | 2023 | 0 | 0 | — |
| CLEAN HARBORS EL DORADO LLC | EL DORADO, AR | 2023 | 0 | 0 | — |
| EVONIK CORPORATION | LOS ANGELES, CA | 2022 | — | — | — |
| NOV FIBER GLASS SYSTEMS BURKBURNETT | BURKBURNETT, TX | 2022 | — | — | — |
| URETHANE SYSTEMS USA LLC | GASTONIA, NC | 2022 | — | — | — |
| ELANTAS PDG, INC. | SAINT LOUIS, MO | 2022 | — | — | — |
| RUBICON LLC - GEISMAR FACILITY | GEISMAR, LA | 2022 | 260,014 | 14 | — |
| FUTURE PIPE INDUSTRIES | HOUSTON, TX | 2022 | 4,036 | 4,036 | — |
| THE DOW CHEMICAL COMPANY TEXAS OPERATIONS | FREEPORT, TX | 2022 | 2,267 | 72 | 2,195 |
| BASF CORP - GEISMAR SITE | GEISMAR, LA | 2022 | 1,430 | 1,307 | 123 |
| INSPEC FOAMS INC | MAGNOLIA, AR | 2022 | 100 | 100 | — |
| CLEAN HARBORS ENVIRONMENTAL SERVICES INC | KIMBALL, NE | 2022 | 48 | 48 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2022 | 14 | 14 | — |