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The assessment of heavy metal contamination of the cultivated soils in the Odra river floodplain

Michalak Aleksandra, Świsłowski Paweł, Rajfur Małgorzata

Chemistry-Didactics-Ecology-Metrology

2021

R. 26, NR 1-2

55--64

The aim of the study was to assess the contamination of selected heavy metals in cultivated soils of the Odra river floodplain. The heavy metals Mn, Fe, Cu, Zn, Ni, Cd and Pb were determined in soil samples collected in the autumn of 2020 - after the vegetation period of plants from designated measurement points. Concentrations of the analytes were measured using an atomic absorption spectrometer (F-ASA). A comparison was made between concentrations of heavy metals in soil samples collected from areas flooded in 1997 and from areas flooded as a result of rainfall, snowmelt and winter floods. The results of the studies were compared with the data for soils taken from non-flooded areas. The studies confirmed enrichment of soils subjected to precipitation, snowmelt and winter floods in heavy metals. Also samples taken from two measurement points located on floodplains of the Odra river were characterised by high concentrations of Zn, Cd and Pb.

Modelowanie transportu rumowiska wleczonego w korytach rzek z dnem aluwialnym na przykładzie górnej i środkowej Odry

Parzonka W., Bartnik W., Kasperek R.

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska

2002

Vol. 11, No. 2

70--79

The paper presents the results of analysis of the bed load transport conditions in the river Odra. Parameter Ks/Kr has been estimated for upper and middle course of the river Odra. Its values are considerably less than 1.0 and can be even equal 0.3. The bed load transport intensity has been calculated by means of the Meyer-Peter and Müller formula (MPM). Parameter Ks/Kr, of this formula, has a great effect on the calculations of the bed load transport. The authors m dified the MPM formula using the real values o parameter Ks/Kr for Upper and Middle Odra. The bed load transport intensity calculated according to the new MPM-C formula is comparable with them easured transport intensity in the cross-section Ścinawa.