ASSESSMENT OF SEDIMENT TRACE ELEMENT CONCENTRATIONS IN ARUVIKKARA RESERVOIR USING GEO- ACCUMULATION INDEX, ENRICHMENT FACTOR AND CONTAMINATION FACTOR

摘要

The present attempt is to analyze the degree of trace element concentrations (Fe, Mn, Pb, Cd, Zn) in the sediments of the Aruvikkara reservoir. The heavy metal concentration has been evaluated using geochemical index, enrichment factor, contaminationfactor and degree of contamination. The study revealed that the sediments have been free from the heavy metal contamination except iron because of the lack of industrial establishments in the study area. Iron contamination is seen in the sediments in most of the sites.