To advance how health assessors evaluate dioxin exposure, ATSDR updated its Policy Guideline for Dioxins and Dioxin-like Compounds in Residential Soil.
- ATSDR Updated Dioxin Soil Policy [PDF, 2041 KB]
- ATSDR Dioxin Soil Policy Fact Sheet [PDF, 98 KB]
- Dioxin Soil Policy Guidelines Excerpts from Board of Scientific Counselors Meeting Minutes - November 2004 [PDF, 27 KB]
- Update to ATSDR Policy Guideline for Dioxins and Dioxin-Like Compounds in Residential Soil [PDF, 42 KB]
- Letter to Colleagues [PDF, 24 KB]
- Response to Peer Review Comments on ATSDR Dioxin Soil Policy Guideline [PDF, 263 KB]
- Reviewer #1 Comments [PDF, 37 KB]
- Reviewer #2 Comments [PDF, 29 KB]
- Reviewer #3 Comments [PDF, 75 KB]
- Reviewer #4 Comments [PDF, 27 KB]
Among the revisions is deletion of the “action level” criterion. No other chemical has an action level, so this change makes evaluating dioxin levels consistent with scientifically assessing other chemicals.
The updated guidelines also broaden and increase emphasis on exposure pathway analysis. The revision calls for vigorous assessment of both direct and indirect exposure pathways, including dioxin exposure from dietary sources.
The update does not indicate a change in scientific opinion on dioxin toxicity. Also unchanged are ATSDR’s 1998 dioxin toxicological profile and dioxin minimum risk level. Further, the new guidelines do not alter past decisions about site clean-up.
Updating ATSDR’s Policy Guideline for Dioxins and Dioxin-like Compounds in Residential Soil gives ATSDR and state-partner health assessors the ability to evaluate dioxin contamination at residential sites more comprehensively and with greater consistency.
Public comments concerning ATSDR’s Policy Guideline for Dioxins and Dioxin-like Compounds in Residential Soil must be received by February 27, 2007.
To forward comments by mail:
Ms. Athena Gemella
ATSDR
Office of Science
1600 Clifton Road, N.E.
Mail Stop E-28
Atlanta, GA. 30333
To forward comments by e-mail:
Ms. Athena Gemella
AGemella@cdc.gov
Please see below for updated guidelines and additional information.
Updated Guidelines
Agency for Toxic Substances and Disease Registry, 1825 Century Blvd, Atlanta, GA 30345
Contact CDC: 800-232-4636 / TTY: 888-232-6348
