Assessment of Heavy Metal Contamination in Marine Sediments of East Coast of Tamil Nadu Affected by Different Pollution Sources. Issue 1 (15th August 2017)

• Record Type: Journal Article
• Authors: Harikrishnan, N.; Ravisankar, R.; Chandrasekaran, A.; Suresh Gandhi, M.; Kanagasabapathy, K.V.; Prasad, M.V.R.; Satapathy, K.K.
• Is Part Of: Marine pollution bulletin. Volume 121:Issue 1/2(2017)
• Page Start: 418
• Page End: 424
• Publication Date: 2017-08-15
• Subjects: Sediments -- EDXRF -- Heavy metals -- Pollution indices -- Multivariate statistical method; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2017.05.047
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: The aim of this study was to determine the concentration of heavy metals in the sediments of Periyakalapet to Parangipettai coast, east coast of Tamil Nadu, by using energy-dispersive X-ray fluorescence (EDXRF) technique. The average heavy metal concentrations in the sediment samples were found in the order Al > Fe > Ca > Ti > K > Mg > Mn > Ba > V > Cr > Zn > La > Ni > Pb > Co > Cd > Cu. The average heavy metal concentrations were below the world crustal average. The degree of contamination by heavy metals was evaluated using pollution indices. The results of pollution indices revealed that titanium (Ti) and cadmium (Cd) were significantly enriched in sediments. Pearson correlation analysis was performed among heavy metal concentrations to know the existing relationship between them. Multivariate statistical technique was employed to identify the heavy metal pollution sources. Highlights: 16 elements are determined using EDXRF. Al and Fe are the most abundant metals in the sediments Sediments are contaminated by Ti and Cd Strong positive correlation observed among heavy metals. Heavy metals originated from weathering of rocks.