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The content of heavy metals in aquatic plants from different aquatic environments of the Lublin Region


, : The content of heavy metals in aquatic plants from different aquatic environments of the Lublin Region. Annales Universitatis Mariae Curie Skodowska Sectio DD, Medicina Veterinaria 58: 189-197

Samples were obtained from six different aquatic environments in Poland (Zemborzycki Reservoir, breeding ponds (Piaski), Bystrzyca river tributary to the Wieprz river, Lake Zagebocze, breeding ponds Przytoczno, Tuligowy Reservoir) to determine the content of heavy metals in the following plants: Alisma plantago-aquatica, Nuphar lutea, Sparganium ramosum, Glyceria aquatica Elodea canadensis, Phalaris arundinacea, Schoenoplectus lacustris Typha latifolia, Typha angustifolia, Heleocharis palustris, Utricularia vulgaris, Polygonum amphibium, Potamogeton perfoliatus, Potamogeton natans, Ceratophyllum demersum, Lemna minor, Salvinia natans, Sagittaria sagittifolia, Acorus calamus, Phragmites australis, Myriophyllum spicatum, and Hydrocharis morsus-ranae. After washing under running and distilled water, plants were dried at 105 degrees C, and homogenized. Mineralization was conducted in a combustion furnace at 400 degrees C. The ash obtained was dissolved in water solution of nitric acid (1:1). The contents of cadmium, lead, copper and zinc were recorded by means of inversion voltamperometry technique using Metrohm device; mercury was determined using AMA 254 device; arsenic - by application of AAS technique with graphite cell (AAS 880 Varian) in 1999, and in 2001 by AAS 220 Varian. All heavy metal concentrations were expressed in micro g/g on a dry weight basis. In 1999, the concentration of heavy metals was around 0.07-0.97 for Cd, 0.01-5.32 for Pb, 0.003-0.30 for Hg, 3.45-58.5 for Cu, 17.9-92.1 for Zn and from trace to 0.009 for As. In 2001, heavy metal concentrations was around from trace to 1.79 for Cd. from trace to 5.46 for Pb, from 0.09 to 2.02 for Cu, from trace to 6.26 for Cr and from 7.50 to 329.0 for Zn. The concentration of Hg, Pb, Cd, As, Zn, Cu, Cr, Ni varied depending on the aquatic systems.

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