Human Health Risk Assessment : Final Report.


Author:   ENSR International ; Bureau of Land Management

Publication:   [Westford, Massachusetts] : [ENSR International] ; Reno, Nevada : [U.S. Bureau of Land Management, Nevada State Office], 2005.
"November 2005."

Physical description of original:   173 pages in various pagings + 5 appendices in various pagings

Summary:   The Bureau of Land Management (BLM) is preparing a document, "Final programmatic environmental impact statement vegetation treatments using herbicides on Bureau of Land Management lands in 17 western states," (PEIS) to evaluate proposed vegetation treatment methods and alternatives on public lands managed by the BLM in the western U.S. including Alaska.   As part of the PEIS, a human health risk assessment (HHRA) was conducted to evaluate potential human health and environmental risks that may result from exposure to herbicide active ingredients both during and after treatment of public lands.   The HHRA has evaluated the six herbicide ingredients (Dicamba, Diflufenzopyr, Diquat, Fluridone, Imazapic, and Sulfometuron methyl) in regards to risks to humans. (Other active ingredients considered in the PEIS had already been quantitatively evaluated in previous BLM impact statements or by the U.S. Department of Agriculture Forest Service.)

Related documents:   See the ARLIS website with links to reports related to the BLM's 2007 Final Environmental Impact Statement and the Final Programmatic Environmental Report on vegetation treatments.


Main report
Appendix A.   Reference Herbicide Labels
Appendix B.   Risk Calculation Spreadsheets

Note: Two PDF files distributed on the CD-ROM as part of Appendix B are duplicates, and not listed here.

Appendix C.   AgDRIFT Modeling
Appendix D.   GLEAMS Modeling
Appendix E.   Uncertainty Evaluation for Public Receptors (medium and long-term exposure)