Heavy metals (fe, pb, cd, cu) in separate littoral's zones in the saimaa (finland) lake

Our living environment – the living nature and inanimate nature are extremely fragile and vulnerable. Among the various chemical pollutants the most prevalent are heavy metals. They are defined as the ones with permanent and various toxic effects, which endangers living nature and human health the most. The migration of this pollutant in the atmosphere is increasing every year. The samples were taken from the Saimaa lakeside near urban centres (Anttola, Astuvansalmi, Ristina, Imatra, Savonlinna, Orijärni, Mikkeli, Puumala ) in autumn 2004 (October, November) and summer 2005 (June). The materials were analyzed by using Eric D. van Hullebusch 2004 method – modified by A. Tessier methods. The quantity of heavy metals was measured by using a voltmeter and AAS. It was diagnosed that heavy metals are accumulating unevenly in the various substratum. And the biggest impurities were found in the territory around manufacturing of the chemical fertilizers and steel factories (Orijarni, Ristina), also wood processing factories(Anttola, Mikkeli)