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An increased worldwide usage of platinum group elements (PGE) has been observed during recent decades. High amounts of PGE are applied in such areas as chemical industry and jewellery production, but the increased demand for these metals primarily depends on the introduction of automobile catalytic converter systems. Catalytic converters have also been considered to be a major source of PGE pollution...
The influence of Cr (III) and Cr (VI) on biochemical reactions in the environment depends in part on the possibility of its getting from soil to soil solutions. The various methods of sequential extraction of Cr from soil were studied (Tessier et al. [1, 2], Rudd [3], BCR [4-7], Gatehouse [8], Kersten and Förstner [9], Psenner [10], Sposito [11]) in order to characterize chemical fractions. It was...
Adaptation possibilities of the Вас’s method of calculation of water content in soil for irrigation purposes were estimated. To this agrometeorological information from agricultural experiment stations and standard meteorological data were used (for growing season 1980-1986). On this bas is the area with negative difference between precipitations and evaporation in central part of Poland has been...
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