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The biologically active zone in upland habitats at the Hanford Site, Washington, USA: Focus on plant rooting depth and biomobilization.

Authors
  • Lovtang, Sara1
  • Delistraty, Damon2
  • Rochette, Elizabeth3
  • 1 Oregon Department of Energy, Nuclear Safety and Emergency Preparedness Division, Salem, Oregon, USA.
  • 2 Washington State Department of Ecology, Nuclear Waste Program, Spokane, Washington, USA.
  • 3 Washington State Department of Ecology, Nuclear Waste Program, Richland, Washington, USA.
Type
Published Article
Journal
Integrated Environmental Assessment and Management
Publisher
Wiley (John Wiley & Sons)
Publication Date
Jul 01, 2018
Volume
14
Issue
4
Pages
442–446
Identifiers
DOI: 10.1002/ieam.4044
PMID: 29573120
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

We challenge the suggestion by Sample et al. (2015) that a depth of 305 cm (10 ft) exceeds the depth of biological activity in soils at the Hanford Site, Washington, USA, or similar sites. Instead, we support the standard point of compliance, identified in the Model Toxics Control Act in the state of Washington, which specifies a depth of 457 cm (15 ft) for the protection of both human and ecological receptors at the Hanford Site. Our position is based on additional information considered in our expanded review of the literature, the influence of a changing environment over time, plant community dynamics at the Hanford Site, and inherent uncertainty in the Sample et al. (2015) analysis. Integr Environ Assess Manag 2018;14:442-446. © 2018 SETAC. © 2018 SETAC.

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