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Concentrations of heavy metals and plant nutrients in water, sediments and aquatic macrophytes of anthropogenic lakes (former open cut brown coal mines) differing in stage of acidification.
Strong positive correlations were found between concentrations of Co in water and in plants and between Zn in sediments and plants, indicating the potential of plants for pollution monitoring for this metal. Expand
Re-examination of the determination of environmental nitrate as nitrite by reduction with hydrazine.
It is demonstrated that uncontrolled fluctuations in the concentration of oxygen, present during the reduction, were the main cause of the earlier erratic results, and the homogeneous catalysed reduction proposes the possibility of increasing the number of simultaneous nitrate reductions using sample volumes down to a few microlitres. Expand
Ammonium determination in soil extracts by the salicylate method
Abstract An ammonium determination, based on formation of a substituted indophenol with sodiumsalicylate as phenolic reagent, has been reexamined. An increase of 70% in absorbancy compared withExpand
Toxic metals in aquatic plants surviving in surface water polluted by copper mining industry.
Enrichment ratios of elements in plant tissue and in water were much higher than those between plant tissues and sediments, and enrichment ratios in mineral wastes in this area belong to the largest repository in Europe. Expand
Biomonitoring of Water Pollution with Elodea Canadensis. A Case Study of Three Small Polish Rivers with Different Levels of Pollution
Concentrations of Al, Cd, Co, Cr, Cu, Mn, Ni, Pb, Sr, V, Zn,N, P, K, Ca, Mg, Fe and S were measured in water, river bottomsediments and in Elodea canadensis sampled in threerivers from the OdraExpand
Re-examination of the determination of ammonium as the indophenol blue complex using salicylate
Abstract The most sensitive spectrophotometric procedure for the determination of ammonium is based on the conversion of ammonium into the intense blue indophenol complex (IPC) by means of salicylateExpand
Sanionia uncinata (Hedw.) loeske as bioindicator of metal pollution in polar regions
The principal component and classification analysis (PCCA) ordination revealed that S. uncinata from sites the most close, the most remote and on an intermediary distance from the seashore differentiated by the value of factor 1, which relates negatively to concentrations of Cd, Co, Cr, Cu, Fe, Pb and V. Expand
The effect of air-borne ammonium sulphate onPinus nigra var.maritima in the Netherlands
SummaryAs a result of air pollution, considerable deposition of ammonium sulphate occurs on vegetation and soil in the vicinity of chicken farms and fields dressed with animal slurry. A clearExpand
Heavy metals in aquatic bryophytes from the Ore mountains (Germany).
This investigation indicates that the studied aquatic mosses reflect part of the pollutant loadings released in the past in the Erzgebirge area of which remnants are still present in the environment. Expand
Determination of sub-microquantities of ammonium and nitrates in soils with phenol, sodiumnitroprusside and hypochlorite
Abstract The possibilities of determining sub-microquantities of ammonium and nitrate in soils were investigated, using Berthelot's reaction after Kjeldahl distillation. The blue color formed by theExpand