Abstract
Cumulative urban and industrial activities have triggered remarkable modifications in the land use and landcover of southernmost Indian subcontinent. This study presents spatial distributions and enrichments of eighteen major and trace elements in sediments of the foredune (D) and beachface (B) landforms present along the coastal stretch of Kanyakumari with respect to the continental crust to evaluate the possible geogenic and anthropogenic influences. Ti (D: 76,842 mg/kg; B: 57,053 mg/kg) is the most abundant among the elements and Cd (D: 4 mg/kg; B: 4 mg/kg) is the least abundant one. Extremely high (by enrichment factor) and very high (by contamination factor) enrichments of Ti, Cd, Mo, Th, and Zr reflect the influences of heavy minerals such as ilmenite, monazite, zircon, garnet, and rutile, and the Igeo values mirror their variable abundances across the sampling sites. Cd enrichment, in few sites, could be due to the sewage from fishing harbors. This baseline data of elemental concentrations (some potentially toxic metals) from a scarcely studied part of India are useful for the short- and long-term monitoring of growing anthropogenic activities related to the tourism and industry.
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PDR and CL acknowledge customs UNAM to bring the samples from India to Mexico and the authors are thankful to Guillermo Vera-Vera and Irma Gabriela Vargas for processing and analyzing the samples with XRF at Institute of Geology, UNAM. We acknowledge the valuable comments and suggestions from editor and all the reviewers.
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Sundar, S., Roy, P.D. & Chokkalingam, L. Spatial distribution and enrichment of metals in surface sediments from different coastal landforms at southernmost Indian subcontinent. J Coast Conserv 26, 35 (2022). https://doi.org/10.1007/s11852-022-00881-4
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DOI: https://doi.org/10.1007/s11852-022-00881-4