Multivariate Statistical Analysis for the Surface Water Quality of Trepçaand Sitnica Rivers, Kosovo

Year 2016, Volume: 11 Issue: 1, 92 - 99, 30.03.2016

Flora Ferati Arjana Kraja- Ylli

Abstract

The study was
performed to investigate the concentration of toxic heavy metals like As, Cd,
Cr, Co, Cu, Ni, Pb and Zn in the water of Trepça and Sitnica Rivers. It was observed that the concentration of most
of the analyzed heavy metals was much higher than the
European and Kosovo permissible limits. Water quality parameters including DO, BOD, conductivity,
temperature, TDS, pH, and turbidity were measured in samples collected from 6
stations. The highest concentration of As, Cd, Pb and Zn
originate primarily from anthropogenic sources such as discharge of industrial
water from mining flotation and from the mine waste eroded from the river
banks. Multivariate statistical analyses, such as cluster analysis (CA) were
applied to evaluate water quality and to identify potential pollution sources
of Trepça and the Sitnica River. Cluster
analysis suggests that As, Cd, Cr,  Co,
Cu, Ni, Pb and Zn are derived from anthropogenic sources, particularly
discharges from mining flotation and
erosion from waste from a zinc mine plant.

Keywords

heavy metal, Trepça and Sitnica Rivers, multivariate cluster analysis, quality of water

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