Dichlorofluoromethane (HCFC-21)
CAS # 75-43-4
9,100 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)
-33% overall
| Year | Total Released (lbs) | Reporting Facilities | vs Prior Year |
|---|---|---|---|
| 2015 | 780 | 1 | — |
| 2016 | 780 | 3 | 0% |
| 2017 | 1,040 | 3 | +33% |
| 2018 | 1,040 | 1 | 0% |
| 2019 | 780 | 1 | -25% |
| 2020 | 1,040 | 1 | +33% |
| 2021 | 1,300 | 1 | +25% |
| 2022 | 1,300 | 1 | 0% |
| 2023 | 520 | 1 | -60% |
| 2024 | 520 | 1 | 0% |
Top Releasing Industries
| Industry Sector | Total Released (lbs) | Facilities |
|---|---|---|
| Manufacturing | 9,100 | 3 |
| Facility | Location | Year | Total (lbs) | Air | Water |
|---|---|---|---|---|---|
| CHEMOURS COMPANY | LOUISVILLE, KY | 2024 | 520 | 520 | — |
| CHEMOURS COMPANY | LOUISVILLE, KY | 2023 | 520 | 520 | — |
| CHEMOURS COMPANY | LOUISVILLE, KY | 2022 | 1,300 | 1,300 | — |
| CHEMOURS COMPANY | LOUISVILLE, KY | 2021 | 1,300 | 1,300 | — |
| CHEMOURS COMPANY | LOUISVILLE, KY | 2020 | 1,040 | 1,040 | — |
| CHEMOURS COMPANY | LOUISVILLE, KY | 2019 | 780 | 780 | — |
| CHEMOURS COMPANY | LOUISVILLE, KY | 2018 | 1,040 | 1,040 | — |
| HUDSON TECHNOLOGIES COMPANY | ONTARIO, CA | 2017 | — | — | — |
| HUDSON TECHNOLOGIES COMPANY | CATANO, PR | 2017 | — | — | — |
| CHEMOURS COMPANY | LOUISVILLE, KY | 2017 | 1,040 | 1,040 | — |
| HUDSON TECHNOLOGIES COMPANY | CATANO, PR | 2016 | — | — | — |
| HUDSON TECHNOLOGIES COMPANY | ONTARIO, CA | 2016 | — | — | — |
| CHEMOURS COMPANY | LOUISVILLE, KY | 2016 | 780 | 780 | — |
| CHEMOURS COMPANY | LOUISVILLE, KY | 2015 | 780 | 780 | — |