Toxic Release Inventory data for 2024. 15 facilities reported releasing dibenzofuran.
| Facility | State | On-site (lb) |
|---|---|---|
| Chemical Waste Management Emelle | Alabama | 13.0k |
| Flint Hills Resources Pine Bend Llc Rosemount | Minnesota | 1.4k |
| Uss-Clairton Plant Clairton | Pennsylvania | 535 |
| Sugar Cane Growers Cooperative Of Florida Belle Glade | Florida | 374 |
| Cleveland-Cliffs Burns Harbor Llc Burns Harbor | Indiana | 329 |
| Cleveland-Cliffs Cleveland Works Llc Dba Cleveland-Cliffs Wa Warren | Ohio | 320 |
| Coopers Creek Chemical Corp Conshohocken | Pennsylvania | 287 |
| Koppers Inc Cicero | Illinois | 57 |
| Drummond Co Inc Abc Coke Div Tarrant | Alabama | 51 |
| Cleveland-Cliffs Monessen Coke Llc Monessen | Pennsylvania | 28 |
| Arq Solutions (Operations) Llc Coushatta | Louisiana | 3 |
| Heidelberg Materials Us Cement Llc Logansport | Indiana | 2 |
| Clean Harbors Deer Park Llc La Porte | Texas | 0 |
The Toxic Release Inventory (TRI) tracks how much of each listed chemical U.S. industrial facilities release into the environment each year. EPA requires facilities in certain industry sectors that manufacture, process, or otherwise use TRI-listed chemicals above threshold amounts to report annually. In 2024, 15 facilities reported releasing dibenzofuran to EPA's TRI program.
Releases are spread across all three environmental pathways: 2.5k lb to air (stack and fugitive emissions), 23 lb to water (surface water discharges), and 14.2k lb to land (landfills, surface impoundments, and land treatment).
TRI data represents reported releases, not measured environmental concentrations. A facility reporting large releases of dibenzofuran is not necessarily causing harm at those levels — toxicity, exposure pathways, and local conditions all matter. Conversely, small reported amounts of highly toxic chemicals can pose greater risk than large amounts of less toxic ones. TRI is a transparency tool, not a risk assessment.
For health information about specific chemicals, the Agency for Toxic Substances and Disease Registry (ATSDR) publishes toxicological profiles, and EPA's Integrated Risk Information System (IRIS) provides reference doses and cancer classifications.