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KMID : 0881720000150030209
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Journal of Food Hygiene and Safety
2000 Volume.15 No. 3 p.209 ~ p.218
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A Study on the Contents of Trace Metals in the Crops cultivated in Han-riverside
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김연천:Kim Youn-Cheon
전옥경:Chun Ock-Kyoung/양혜란:Yang Hye-Ran/최영희:Choi Young-Hee/한선희:Han Sun-Hee/이강문:Lee Kang-Moon
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Abstract
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This study was conducted to determine the content of trace metals in crops cultivated in Han-riverside, Anyang stream, Tan stream, and Jungryang stream. Trace metals (Pb, Cr, Cd, Fe, Zn, Cu, Hg) were detected in 36 crops, 285 samples by Atomic Absorption Spectrophotometer and Mercury Analyzer. The average concentration of trace metals in crop samples was in the order of Fe (34.592 ppm)>Mn (11.071 ppm)≥Zn(8.853 ppm)>Cu(1.795 ppm)>Cr(0.237 ppm)>Pb(0.100 ppm)>Cd(0.011 ppm)>Hg(0.003 ppm). In crop samples, the contents of Fe, Cu, Mn, and Zn, which ranges were 0.004-203.083 ppm, 0.017∼22.727 ppm, 0.000∼74.373 ppm, 0.080∼37.166 ppm, respectively, were relatively higher than those of Pb, Cd, Cr, and Hg, which ranges were 0.000∼0.654 ppm, 0.000∼0.270 ppm, 0.000∼l.229 ppm, 0.000∼0.037 ppm, respectively. The concentration of trace metals in crop samples was in the order of leafy vegetables > stem vegetables > root vegetables > fruity vegetables. In the root vegetables, such as radish, the content of Pb was leaf(0.055 ppm)>root(0.035 ppm), that of Cr, leaf (0.118 ppm)>root(0.031 ppm), that of Cd, leaf(0.004 ppm)>root(0.001 ppm), that of Hg, leaf(0.004 ppm)>root(0.001 ppm). As the results, it could be thought that root is the organ which doesn′t accumulate the heavy metal ions, but absorb them.
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KEYWORD
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Crops, Content of trace metals, Han-riverside
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