%0 Journal Article
%T The transfer of certain contaminants by means of surface and underground water-flows in the catchement area of Arie  stream, Roumania
%A Constantin Marin
%A Ioan Povara
%A Alin Tudorache
%A Geza Rajka
%J Travaux de l'Institut de Speologie Emile Racovitza
%D 2010
%I Editura Academiei Romane
%X Within an area heavily concerned by mining activities, chemical analyses have been performed in order to estimate the quality of the surface water and of the groundwater, by assessing also the concentrations of Ba, Mn, Fe, Cu, Zn, Ni, Cr, Cd, Al, Pb, Sb, As adsorbed on the surface of the suspended particulate matter (SPM). The investigations have addressed a 108 km long section of Arie  stream. The analyzed nutrients, namely NH4, NO2 and NO3, are liable to accumulate within the phreatic groundwater, the corresponding concentrations being higher in groundwater as compared to those in the surface water. In contrast to the nutrients behavior, there is noticed that concentrations of arsenic and of heavy metals in the surface water are larger than those in hyporheic water. Those contaminants are yet mainly conveyed by means of the SPM, which have the ability to attach and to concentrate large amounts of undesirable elements.
%K suspended particulate matter
%K heavy metals
%K nutrients
%K mining area
%K hyporheic zone
%K Arie
%U http://www.speotravaux.iser.ro/10/art07.pdf