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vol. 1, nr. 3 (2003)
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Waterfowl eggs as pollution indicator of rural environment
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Zbigniew Dobrzański1, Katarzyna Chojnacka2, Helena Górecka2, Andrzej Chojnacki2, J. Wi¶niewski1
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1 The Faculty of Biology and Animal Science, University of Agricultural Che³mońskiego str. 38 C, 51-630 Wroc³aw |
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2 Faculty of Chemistry, Wroc³aw University of Technology Norwida str. 4/6, 50-373 Wroc³aw |
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vol. 1 (2003), nr. 3,
pp. 395-401
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abstract:
Ducks and geese eggs were sampled from 10 rural farms (free range system) from heavy metals polluted and ecologically pure areas of Lower Silesia. The eggs revealed to be good indicators of environmental pollution with heavy metals of rural area. The bioindicative value was found for egg shells (As, Cu) and egg yolk (As, Cd) as well as albumen (Cd, Hg, Pb, Cu). The content of the metals studied varied between particular morphological elements of eggs from the region of birds breeding. On the industrialized area (exposed on the emission of metal-born dusts) showed several fold higher concentrations of As, Cd, Hg and to lower extent Pb and Cu (with the lack of differences in the case of Zn), when comparing with agricultural area, not exposed to pollution.
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keywords:
rural area, ducks and geese eggs, toxic elements
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original in:
Polish
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