INVESTIGADORES
LA COLLA Noelia Soledad
artículos
Título:
Mercury cycling and bioaccumulation in a changing coastal system: From water to aquatic organisms
Autor/es:
LA COLLA N.S; BOTTÉ S.E; MARCOVECCHIO, J.E
Revista:
MARINE POLLUTION BULLETIN
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2019 vol. 140 p. 40 - 50
ISSN:
0025-326X
Resumen:
This study evaluated -for the first time- the occurrence and distribution of total Hg in abiotic (dissolved andparticulate water fractions) and biotic (gills and muscle tissues of six commercial fish species) compartmentswithin a South American coastal environment with anthropogenic pressure. This study dealt with environmentalissues on developing countries which, as they are in continuous growth, face the highest rate of coastal transformation.Total Hg content was determined by acid digestion and measured using a cold vapor atomic absorptionspectrophotometer. Results revealed that dissolved Hg exceeded the recommended levels for superficial salinewaters in 67% of the cases. Hg concentrations varied among fish species and its tissues. The results suggestedthat metal burden in fishes achieved a mean maximum accumulation towards the muscle, with concentrationsbelow the international maximum permitted values. The estimated daily intakes calculated suggest that peoplewould not experience significant health risks through fish consumption.
