Please use this identifier to cite or link to this item: http://hdl.handle.net/10125/11632

Assessment of Trace Element Contamination in Streambed Sediment and Spatial Associations in Palolo Valley Watershed, Honolulu, Oʻahu, Hawaiʻi

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Item Summary

Title:Assessment of Trace Element Contamination in Streambed Sediment and Spatial Associations in Palolo Valley Watershed, Honolulu, Oʻahu, Hawaiʻi
Authors:Hotton, Veronica K.
Contributors:Sutherland, Ross A. (advisor)
Geography and Environment (department)
Keywords:trace elements in water
Hawaii
Oahu
water pollution
toxicology
show 2 moresediments (geology)
heavy metal content
show less
Date Issued:May 2005
Publisher:[Honolulu] : [University of Hawaii at Manoa], [May 2005]
Abstract:Trace elements in streambed sediment (<63 micrometers) of Palolo, Puke1e, and Waiomao Streams (Palolo Valley Watershed, Honolulu, Hawaii) were investigated. Based on weak hydrochloric acid leaching (0.5 molarity), total digestions, sequential extractions, concentration enrichment ratios, sediment quality guideline comparisons, and national stream comparisons, there was significant lead contamination in Palolo Stream and some concern for copper, nickel, and zinc. Pukele Stream had intermediate trace element contamination, while Waiomao Stream was largely uncontaminated. Palolo Stream had significantly greater concentrations of trace elements than Pukele Stream, and both streams were significantly greater than Waiomao Stream. Since sediment in Palolo Steam was significantly contaminated with trace elements, the biological integrity of Palolo Stream and downstream systems could be impaired. There were great differences in urbanization related to population, storm drains, streets, and vehicle numbers in the sub-basins. These landuse characteristics could contribute to the observed differences among trace elements concentrations in streambed sediment.
Description:MA University of Hawaii at Manoa 2005
Includes bibliographical references (leaves 146–156).
Pages/Duration:xxi, 156 leaves, bound : illustrations, maps ; 29 cm
URI/DOI:http://hdl.handle.net/10125/11632
Rights:All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
Appears in Collections: M.A. - Geography


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