Trace Metal Analysis of Karuk Traditional Foods in the Klamath River
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Date
2013
Authors
Norgaard, Kari Marie
Meeks, Spenser
Crayne, Brice
Dunnivant, Frank
Journal Title
Journal ISSN
Volume Title
Publisher
Scientific Research Publishing
Abstract
This study evaluates the presence of trace metals in Klamath River water and three important Karuk traditional foods: freshwater mussels (Gonidea angulata), Chinook Salmon (Oncorhynchus tshawytscha) and Rainbow Trout (On- corhynchus mykiss). Samples of these traditional foods together with water samples were collected from the Klamath River and measured for the total chromium (Chromium), cobalt (Co), copper (Cu), cadmium (Cd), tin (Sn), and lead (Pb) by inductively coupled plasma-mass spectrometry (ICP-MS). We found that cultural-use species in the Klamath and its tributaries are accumulating higher levels of lead, cadmium and tin downstream of a known Superfund site. Neither water, fish, nor mussel samples exceeded maximum intake levels of metal doses mandated by state or federal agencies for consumption intakes of 1.4 L per day of water, 0.5 kg per meal per day for fish, and 0.043 kg per meal for 30 meals per year.
Description
10 pages
Keywords
Trace metals, Metals analysis, Klamath River
Citation
Journal of Environmental Protection, 2013, 4, 319-328