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The heavy metal contents of soils which had been contaminated with mine residues and green onion and lettuce which were grown on these soils were analyzed. The results obtained are summarized as follows: 1. Heavy metal contents in the soil where green onion and lettuce died back or were poor in grow...

The heavy metal contents of soils which had been contaminated with mine residues and green onion and lettuce which were grown on these soils were analyzed. The results obtained are summarized as follows: 1. Heavy metal contents in the soil where green onion and lettuce died back or were poor in growth were unusually high. 2. Heavy metal contents in the plants grown in the soil of high level of metals were also high, in the order of root > leaf > stem. In case of Mn, however, the content was the highest in the leaf. 3. Contents of Cd, Cu, Zn and Ni in soil were positively correlated with those in plant. In case of Pb, there was no consistent relationship between the contents in soil and plant. 4. Even in the soils where plant growth appeared to be normal the heavy metal contents both in soil and in plant were higher than the national average.

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