American oyster Crassostrea virginica and sediments as a coastal zone pollution monitor by heavy metalsReport as inadecuate




American oyster Crassostrea virginica and sediments as a coastal zone pollution monitor by heavy metals - Download this document for free, or read online. Document in PDF available to download.

International Journal of Environmental Science and Technology

, Volume 9, Issue 4, pp 579–586

First Online: 01 June 2012Received: 10 February 2011Accepted: 18 October 2011

Abstract

Levels of barium, cadmium, chromium, copper, mercury and vanadium were determined by plasma emission spectroscopy in sediments and oysters Crassostrea virginica in the Palizada, Chumpán and Candelaria rivers, which flow into the Términos Lagoon, state of Campeche, Mexico. The relation between the condition index of the oyster and the detected elements were determined as well. Significant relations were observed between copper r = −0.825, p < 0.05 and chromium r = −0.787, p < 0.05, which indicates the oysters’ affectation by ingesting both elements; concurrently, the results confirm that oysters present high tolerance to heavy metals. The average concentration of cadmium 2.05 μg-g, chromium 1.82 μg-g and copper 115.55 μg-g in rainy-season climate exceeded the limits for marine mollusks regarding different health standards. It was found that the rainy season, the sediment characteristics and organic matter content have a great influence on the transport and availability of heavy metals.

KeywordsContamination Heavy metals Marine sediments Oyster condition index  Download fulltext PDF



Author: C. A. Aguilar - C. Montalvo - L. Rodríguez - J. G. Cerón - R. M. Cerón

Source: https://link.springer.com/







Related documents