Distribution of Trace Elements in Meromictic Pit Lake

Studies were conducted at the deepest location of the meromictic Piaseczno pit lake, southern Poland, which was created in abandoned sulphur opencast. Pearson correlation and PCA were used to established the relationship between the elements and physico-chemical parameters of the water, whereas disc...

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Bibliographic Details
Published in:Water, air, and soil pollution air, and soil pollution, 2006-07, Vol.174 (1-4), p.181-196
Main Authors: Szarek-Gwiazda, Ewa, Żurek, Roman
Format: Article
Language:English
Subjects:
Alkalinity
Environmental monitoring
Lakes
Lead
Manganese
Monimolimnion
pH effects
Sediment-water interface
Sediments
Trace elements
Water depth
Zinc
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Summary:Studies were conducted at the deepest location of the meromictic Piaseczno pit lake, southern Poland, which was created in abandoned sulphur opencast. Pearson correlation and PCA were used to established the relationship between the elements and physico-chemical parameters of the water, whereas discriminant test to study vertical and time differentiation of Cd, Pb, Sr, Cu, Zn, Mn, and Fe concentrations. The results indicated both vertical (except Cu and Zn) and time differentiations of studied elements in the lake water. The highest concentrations of Cd, Pb, and Sr were found in the monimolimnion, that of Mn and Fe in the anoxic water. Depth profiles of Cu and Zn did not show any pronounced trend. Pb and Sr distributions in the water were related to alkalinity, Cl super(-) and COD, Cd to alkalinity and Cl super(-), Mn and Fe to the redox conditions, Mn to water pH, and Fe to the alkalinity. The upper (0-15 cm) layer of the sediment consisted mainly of S (24.2 Atom%), Fe (21.62%), Ca (18.4%), Si (14.3%), and (Al 6.3%) and reflected mainly processes proceeded in the anoxic water-sediment interface. Calculated accumulation coefficients (K sub(d)) of the elements in the sediment are discussed.
ISSN:0049-6979
1573-2932
DOI:10.1007/s11270-006-9091-4