Please use this identifier to cite or link to this item: http://hdl.handle.net/10125/101863

Spatial distribution of arsenic residues from historic application to sugarcane on the Hamakua Coast, Hawaiʻi

File Description SizeFormat 
Niklis_Nancy_r.pdfVersion for non-UH users. Copying/Printing is not permitted3.72 MBAdobe PDFView/Open
Niklis_Nancy_uh.pdfVersion for UH users3.75 MBAdobe PDFView/Open

Item Summary

Title: Spatial distribution of arsenic residues from historic application to sugarcane on the Hamakua Coast, Hawaiʻi
Authors: Niklis, Nancy Jennifer
Keywords: Hamakua Coast
Issue Date: May 2013
Publisher: [Honolulu] : [University of Hawaii at Manoa], [May 2013]
Abstract: Arsenic based herbicides were applied from 1913-1945 on sugarcane plantations along the Hamakua Coast and As remains prevalent both on and off these lands. This research presents an investigation of the spatial distribution from highly contaminated topsoil (0-30 cm) of Hawaiian Andisols from the Hamakua Coast of the Island of Hawaiʻi. Arsenic concentrations were found to be elevated (216 ± 20 mg kg-1) in comparison to the background levels in Andisols (<20 mg kg-1). Andisols of this study included soil series Onomea, Akaka, Kaiwiki, Hilo, and O'okala. As spiked solutions of 58 mg L-1 were applied to all soils and <0.5 mg L-1 As remained in solution after equilibrium. There was a relationship between flow accumulation and As on a localized scale, not a watershed scale. Therefore, most of the As was in the solid phase and elevated As concentrations may be found in areas of high flow accumulation.
Description: M.S. University of Hawaii at Manoa 2013.
Includes bibliographical references.
URI/DOI: http://hdl.handle.net/10125/101863
Appears in Collections:M.S. - Tropical Plant and Soil Sciences



Items in ScholarSpace are protected by copyright, with all rights reserved, unless otherwise indicated.