Published Paper Details:

Abstract: The bottom core sediment samples of two perennial ponds were collected and to determine the heavy metal concentrations and pollution status of metals such as Fe, Mn, Cr, Cu, Pb, Zn, Al, Ni, Cd, Na, K, Ca and Mg. To assess the metal contamination in pond sediments, sediment quality guidelines of metals (WSR) were applied. The metal contamination in the study pond sediments were also evaluated by applying enrichment ratio (ER), contamination factor (CF), geo-accumulation index (Igeo) and pollution load index (PLI). Based on enrichment ratio (ER), the core sediment samples of Pond I (Manavalakurichy) and pond II (Thiruthuvapuram) indicating deficiency to minimal enrichment for Cu, Ni, Cd, Al, Cr, Zn and Mn. According to contamination factor (CF), K and Mg were responsible for moderate contamination; Na shows considerable contamination and the metals such as Fe, Mn, Cr, Cu, Zn, Al, Ni and Cd indicating low contamination in pond I and II. According to Igeo, pond I sediments were unpolluted to moderately polluted by Pb. Based on PLI all sampling stations in both study ponds suggest no overall pollution of site quality.