ISHS Acta Horticulturae 93: Symposium on Quality of Vegetables
CONTAMINATION OF VEGETABLES WITH HEAVY METALS |
| Authors: | D. Fritz, F. Venter |
| Abstract:
Consumers' demands for the nutritional quality of food plants advance - but this paper shall not discuss whether such demands are convenient or useful at all. In the Federal Republic of Germany, regulations are being prepared since 1974 to set maximum limits for heavy metals (at the first place for Hg, As, Pb, Cd) in food. At the same time the question is becoming actual whether the use of garbage composts in vegetable production may still be convenient. Both problems made us collect vegetable samples from different Bavarian production areas, that were almost unimpaired by garbage composts and air pollution. Analyses for heavy metal contents were made to provide base values for later comparison (Venter et al., 1977). Moreover, pot trials with soils which had been treated with composts of different origin and had been differently prepared were carried out to determine possible changes of heavy metal contents in vegetables grown in these soils. | |
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