Influence of Mineral Fertilization on Lead, Cadmium, and Chromium Fraction Contents in Soil
Adam Łukowski, Józefa Wiater
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Department of Technology in Engineering and Environmental Protection, Technical University of Białystok,
Wiejska 45A, 15-351 Białystok, Poland
Pol. J. Environ. Stud. 2011;20(4):951-960
The aim of our study was to estimate the influence of mineral fertilization on the contents of various lead, cadmium, and chromium forms in the soil. It was based on a field experiment of ten plots. In average soil samples taken in 2002-04, the pseudo-total lead, cadmium, and chromium content was determined. Chemical forms of these metals, by modified BCR method, were also determined.
The lead content in particular fractions can be arranged quantitatively (average values) in order as follows: F2 (26%)>F3 (16%)>F1 (2%), in the case of cadmium: F2 (27%)>F1 (17%)>F3 (5%), and in the case of chromium: F3 (5%)>F2 (3%)>F1 (0.2%). The accumulation of lead, cadmium, and chromium in the soil during the experiment was observed. After the third year of experiment the most mobile cadmium and chromium forms (soluble + exchangeable fraction) increased, while in the case of lead they generally decreased.
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