Lead, cadmium, zinc and copper bioavailability in the soil-plant-animal system in a polluted area
The connection between the total quantity and the mobile forms of Pb, Cd, Zn and Cu in soils with different level of contamination, and the transition of these metals into rapeseed and their assimilation by rabbits, fed with a food that consists mainly of rapeseed, were studied. It was established that the uptake of heavy metals by the rapeseed has definitely a selective character, as the affinity towards Zn is most strongly expressed. The accumulation of Pb, Cd, Zn and Cu in the organs of the rapeseed occurred in the following order: inflorescences>leaves>stems. A direct connection between the quantity of the mobile forms and their accumulation in the plants was not found. The environmental contamination has a significant effect on heavy metal levels and distribution, as the largest quantity of all four elements was accumulated in the kidneys and liver. There was found a well expressed impact of the level of Cd contamination on the uptake of essential trace metals (Zn and Cu) and their accumulation into some of the organs of the animals.
heavy metals uptake bioaccumulation rapeseed rabbit
V. Angelova R. lvanova J. Todorov K. Ivanov
Department of Chemistry, University of Agriculture, Plovdiv 4000, Bulgaria Department of Plant Science, University of Agriculture, Plovdiv 4000. Bulgaria
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
580-581
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）