♦ Carcinogen
Thiourea
CAS # 62-56-6
609,307 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)
+5558% overall
| Year | Total Released (lbs) | Reporting Facilities | vs Prior Year |
|---|---|---|---|
| 2015 | 4,739 | 22 | — |
| 2016 | 68,831 | 16 | +1352% |
| 2017 | 79,865 | 19 | +16% |
| 2018 | 72,333 | 19 | -9% |
| 2019 | 0 | 6 | -100% |
| 2020 | 1,665 | 18 | +2378814% |
| 2021 | 20,844 | 18 | +1152% |
| 2022 | 49,249 | 23 | +136% |
| 2023 | 43,635 | 21 | -11% |
| 2024 | 268,147 | 19 | +515% |
Top Releasing Industries
| Industry Sector | Total Released (lbs) | Facilities |
|---|---|---|
| Mining, Quarrying, and Oil and Gas Extraction | 0 | 1 |
| Wholesale Trade | 0 | 5 |
| Administrative and Support and Waste Management | 583,378 | 12 |
| Manufacturing | 25,929 | 26 |
| Facility | Location | Year | Total (lbs) | Air | Water |
|---|---|---|---|---|---|
| COLUMBUS CHEMICAL INDUSTRIES, INC. | COLUMBUS, WI | 2024 | — | — | — |
| CONNOISSEURS PRODUCTS CORP | WOBURN, MA | 2024 | — | — | — |
| BORDEN CHEMICAL INCORPORATED | MORGANTON, NC | 2024 | — | — | — |
| HYDRITE CHEMICAL CO | MILWAUKEE, WI | 2024 | — | — | — |
| PHELPS DODGE COPPER PRODUCTS CO | EL PASO, TX | 2024 | — | — | — |
| POGO MINE | DELTA JUNCTION, AK | 2024 | — | — | — |
| RSA CORPORATION | DANBURY, CT | 2024 | — | — | — |
| UNIVAR SOLUTIONS POWDER FACILITY | WAXAHACHIE, TX | 2024 | — | — | — |
| THATCHER COMPANY | SALT LAKE CITY, UT | 2024 | — | — | — |
| EVOQUA WATER TECHNOLOGIES, LLC | ROSEVILLE, MN | 2024 | — | — | — |
| SYNTECH CEDAR PORT | BAYTOWN, TX | 2024 | — | — | — |
| BAKER PETROLITE CORP | SAND SPRINGS, OK | 2024 | — | — | — |
| (VEOLIA) ELEMENTAL ENVIRONMENTAL SOLUTIONS LLC - GUM SPRINGS PLANT | ARKADELPHIA, AR | 2024 | 254,845 | 3 | — |
| CHEMICAL WASTE MANAGEMENT, INC- TREATMENT FACILITY | EMELLE, AL | 2024 | 11,000 | — | — |
| KENNECOTT UTAH COPPER CORP. SMELTER AND REFINERY | MAGNA, UT | 2024 | 1,879 | — | — |
| BOSTON SCIENTIFIC SCIMED | MAPLE GROVE, MN | 2024 | 255 | 255 | — |
| OILFIELD SOLUTIONS MIDLAND | MIDLAND, TX | 2024 | 164 | 164 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2024 | 5 | 5 | — |
| HERITAGE THERMAL SERVICES | EAST LIVERPOOL, OH | 2024 | 0 | 0 | — |
| POGO MINE | DELTA JUNCTION, AK | 2023 | — | — | — |
| EVOQUA WATER TECHNOLOGIES, LLC | ROSEVILLE, MN | 2023 | — | — | — |
| THATCHER COMPANY | SALT LAKE CITY, UT | 2023 | — | — | — |
| PHELPS DODGE COPPER PRODUCTS CO | EL PASO, TX | 2023 | — | — | — |
| RSA CORPORATION | DANBURY, CT | 2023 | — | — | — |
| UNIVAR SOLUTIONS POWDER FACILITY | WAXAHACHIE, TX | 2023 | — | — | — |
| CHEMDESIGN PRODUCTS, INC. | MARINETTE, WI | 2023 | — | — | — |
| BORDEN CHEMICAL INCORPORATED | MORGANTON, NC | 2023 | — | — | — |
| CONNOISSEURS PRODUCTS CORP | WOBURN, MA | 2023 | — | — | — |
| HYDRITE CHEMICAL CO | MILWAUKEE, WI | 2023 | — | — | — |
| BAKER PETROLITE CORP | SAND SPRINGS, OK | 2023 | — | — | — |
| SYNTECH CEDAR PORT | BAYTOWN, TX | 2023 | — | — | — |
| CHEMICAL WASTE MANAGEMENT, INC- TREATMENT FACILITY | EMELLE, AL | 2023 | 38,000 | — | — |
| (VEOLIA) ELEMENTAL ENVIRONMENTAL SOLUTIONS LLC - GUM SPRINGS PLANT | ARKADELPHIA, AR | 2023 | 3,182 | 3 | — |
| KENNECOTT UTAH COPPER CORP. SMELTER AND REFINERY | MAGNA, UT | 2023 | 2,076 | — | — |
| BOSTON SCIENTIFIC SCIMED | MAPLE GROVE, MN | 2023 | 255 | 255 | — |
| OILFIELD SOLUTIONS MIDLAND | MIDLAND, TX | 2023 | 87 | 87 | — |
| NORLITE, LLC | COHOES, NY | 2023 | 22 | 16 | — |
| COLUMBUS CHEMICAL INDUSTRIES, INC. | COLUMBUS, WI | 2023 | 10 | 10 | — |
| VEOLIA ES TECHNICAL SOLUTIONS | BEAUMONT, TX | 2023 | 3 | 3 | — |
| HERITAGE THERMAL SERVICES | EAST LIVERPOOL, OH | 2023 | 0 | 0 | — |
| CONNOISSEURS PRODUCTS CORP | WOBURN, MA | 2022 | — | — | — |
| BAKER PETROLITE CORP | SAND SPRINGS, OK | 2022 | — | — | — |
| BORDEN CHEMICAL INCORPORATED | MORGANTON, NC | 2022 | — | — | — |
| EVOQUA WATER TECHNOLOGIES, LLC | ROSEVILLE, MN | 2022 | — | — | — |
| UNIVAR SOLUTIONS POWDER FACILITY | WAXAHACHIE, TX | 2022 | — | — | — |
| POGO MINE | DELTA JUNCTION, AK | 2022 | — | — | — |
| RSA CORPORATION | DANBURY, CT | 2022 | — | — | — |
| HYDRITE CHEMICAL CO | MILWAUKEE, WI | 2022 | — | — | — |
| PHELPS DODGE COPPER PRODUCTS CO | EL PASO, TX | 2022 | — | — | — |
| QUADRA CHEMICALS INC. - FAIRBANKS | FAIRBANKS, AK | 2022 | — | — | — |