Seasonal Variation of Heavy Metals Levels in Surface Waters of Siirt Region

Özet

The rapid increase in the population of our country, the growing agricultural, industrial, and mining activities in recent years and the necessity to meet the needs of the growing population increase the demand for water rapidly. The increase in the need for water requires monitoring and control of surface clean water resources, which are limited, and determining priority water policies. For this reason, not only the water quality but also the amount of water resources is important. In this study, some heavy and metal determinations (As, Cu, Co, Ni, Cd, Cr, Mn, Pb) were performed in the major surface waters (Kezer, Başur, Bitlis, Botan and Zarova rivers ) in Siirt region and seasonal changes were investigated. As a result, the levels of the heavy metals determined were below the values determined by WHO (World Healt Organization ), EPA (Environmental Protection Agency), TSE ( Turkısh Standarts Instite ) and there was no change in their levels seasonally.

Abstract

In this paper, the main aim is to characterize the structure of torsion units in integral group ring of dicyclic group by using a complex faithful irreducible representation of degree 2. We show by the first of Zassenhaus conjectures (ZC1) that non-trivial torsion units in are of order 3, 4 or 6 and each of them can be expressed in terms of 3 free parameters.

Anahtar kelimeler: Siirt region, Heavy metal, Surface water, Seasonal variation.