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This article in AJ

  1. Vol. 62 No. 5, p. 663-664
    Received: Mar 9, 1970

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Limited Removal of Po210 and Pb210 from Soil and Fertilizer by Leaching

  1. T. C. Tso2



Radioelements Po210 and Pb210 are known to be present in plants. They enter the plants primarily by root absorption. Heavy and continued fertilization increases the level of radio-elements in soil and thus in crops so produced. Results obtained from laboratory experiments show that there is limited removal of Po210 and Pb210 by leaching from soil or from fertilizer. Mechanical agitation appeared to increase the leaching rate of these elements. Generally, Po210 was leached from soil or from soil-fertilizer mixture much easier than Pb210, with or without agitation.

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