Risk Analysis of TCDD Contaminated Soil

Notice - This site contains archived material(s)

Archive disclaimer
Archived files are provided for reference purposes only. The file was current when produced, but is no longer maintained and may now be outdated. Persons with disabilities having difficulty accessing archived files may contact the NCEA Webmaster for assistance. Please use the contact us form if you need additional support.


This paper provides a methodology for estimating the human exposure and cancer risk associated with 2,3,7,8-TCDD contaminated soil. Five exposure pathways are addressed: dust inhalation, fish ingestion, dermal absorption, soil ingestion, and beef/dairy products ingestion. For each pathway, factors describing contact rate, absorption fraction, and exposure duration are presented along with the equations for calculating exposure levels and associated cancer risk. The methodology features the use of nomographs to provide quick and approximate estimates of risk. More detailed procedures are also provided for more accurate estimates.


Schaum, J. Risk Analysis of TCDD Contaminated Soil. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/8-84/031 (NTIS PB85145704).