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1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin

CAS Number

37871-00-4

Synonym

HpCDD; 1,2,3,4,6,7,8-heptachloro dibenzo-p-dioxin

Occurrence/Use

Found in smoke emissions, byproduct of chemical synthesis

1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin

Cancer Potency Information

Inhalation Unit Risk (μg/cubic meter)-1: 
3.8 E-1
Inhalation Slope Factor (mg/kg-day)-1: 
1.3 E+3
Oral Slope Factor (mg/kg-day)-1: 
1.3 E+3
Comments/References: 

OEHHA 2009. Air Toxics Hot Spots Program Technical Support Document for Cancer Potencies. Appendix B. Chemical-specific summaries of the information used to derive unit risk and cancer potency values. Updated 2011.