Changes in trace element speciation in kola north surface waters during snow melt
- 28 Downloads
The powerful mass-flow of melt water during the brief period of spring thaw provides a surge of pollutants and causes extremely toxic short term conditions. Together with the increase in total metal concentrations during this period, a redistribution in metal speciation occurs that increases the proportion of more toxic forms. Concentrations of ion-exchangeable fractions of nickel (Ni), copper (Cu), aluminium (Al), and manganese (Mn) show strong negative correlations with pH. The sum of complex metal species shows a strong positive correlation with total organic carbon (TOC). A data analysis model based on relationships observed between key parameters and metal behaviour together with gidrological data allowed an assessmrnt of the metal impact on waterbodies from accumulated airborne pollution (Ni, Cu) as well as from accelerated leaching from watersheds (Al, Mn).
Key wordsacidification surface water pollution species metals
Unable to display preview. Download preview PDF.
- Florence, T.M., Batley G.E.: 1980, CRC Crit. Rev. Anal. Chem., 9, 219.Google Scholar
- Lapin, I.A.: 1988, Complexing capacity of natural waters in the system of water ecosystem buffer capacity determination to heavy metals, in Ecological modeling of antropogenic impact on water ecosystems, Leningrad, Gidrometeoizdat, 83–95.Google Scholar
- Moiseenko, T.I.: 1992, Symposium on the State of the Environment and Environmental Monitoring in Northern Fennoscandia and the Kola Peninsula, Rovaniemi, Finland, 137–140.Google Scholar
- Moiseenko, T.I., Kudrjavtseva, L.P., Rodushkin, I.V., Dauvalter, V.A., Lukin, A.A., Kashulin, N.A.: 1995, Sci. Total Environ., 161, 715–727.Google Scholar
- Ponter C., Ingri, J., Bostrom, K.: 1992, Geochim. Cosmochim. Acta, 56, 1485–1494.Google Scholar
- Semkin, R.G., Jeffries, D.S.: 1988, Can. J. Fish. Aquat. Sci., 45, 38–46.Google Scholar
- Schindler, D.W.: 1988, Sciense, 239, 23–31.Google Scholar
- Zhulidov, A.V.: 1988, Physico-chemical and chemical state of metals in natural waters: toxicity for freshwater organisms, in Ecological modeling of antropogenic impact on water ecosystems, Leningrad, Gidrometeoizdat, 78–82.Google Scholar