The chemical composition and nickel,cobalt, copper,zinc and lead contents of Nanao Bay sediments |
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| Authors: | Yoshikazu Yamamoto Yukitaka Tanaka Shunzo Ueda |
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| Institution: | (1) Department of Industrial Chemistry, Faculty of Technology, Kanazawa University, Kodatsuno 2 chome, 920 Kanazawa, Japan |
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| Abstract: | The contents of major and some of the minor elements, nickel, cobalt, copper, zinc and lead were studied on sediments collected from three inlets of Nanao Bay located at eastern side of Noto Peninsula. Little variation was found on the average contents of silicon, iron, titanium, aluminum, manganese, magnesium and potassium among the sediments of West, South and North Bays in Nanao Bay. Whereas significant difference was found on the contents of calcium, chlorine, sulfur and nitrogen among sediments of three bays.As to the minor elements, the average contents of nickel (20±5 ppm), cobalt (5±1 ppm), copper (18±5 ppm) and lead (17±8 ppm) are relatively low but zinc content is high in these sediments comparing with those of coastal deposit around Japan Island. From the results obtained here, it became clear that no environmental contamination of nickel, cobalt, copper and lead, and a little organic pollution were found in Nanao Bay sediments. |
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