Health Risk Assessment Approach for 2,3,7,8-Tetrachlorodibenzo-P-Dioxin

Note: EPA has updated this document, but this version is provided as a courtesy to the public as a matter of public record.

---

2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is one of the most toxic and environmentally stable pollutants. In addition to various toxic effects, TCDD has been found to cause teratogenic, fetocidal, reproductive and carcinogenic effects in animals. In humans it adversely affects various organ systems and is probably carcinogenic as well. The report documents the methodologies utilized by the United States Environmental Protection Agency in its development of health risk assessment from exposure to TCDD.

Citation