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Chromium accumulation in the Asian clam, Corbicula fluminea (Müller, 1774), as an indicative of landfill leachate contamination.

Bulletin of environmental contamination and toxicology (2014-06-05)
Luciana Fernandes de Oliveira, Claudia Bueno dos Reis Martinez
ABSTRACT

The Asian clam Corbicula fluminea exposed in situ for periods of 1, 5, 15 and 30 days along a stream which receives landfill leachate effluent showed increased Cr accumulation in gills and digestive gland, although Cr concentrations have been found to be low in sediment. Other metals such as Pb, Ni, Al and Cu were also analyzed but were found to accumulate in clam tissues in lower concentrations or without showing a consistent pattern. Thus, the accumulation of a single contaminant such as Cr is proposed to be used as a tool to assess exposure to a complex mixture such as landfill leachates.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Chromium, powder, ≥99% trace metals basis, <45 μm
Sigma-Aldrich
Chromium, chips, 99.995% trace metals basis
Sigma-Aldrich
Chromium, powder, 99.5%, −100 mesh
Sigma-Aldrich
Chromium, chips, thickness ~2 mm, 99.5%
Chromium, foil, not light tested, 25x25mm, thickness 0.006mm, permanent polyester support, 99.99+%
Chromium, foil, not light tested, 25x25mm, thickness 0.02mm, permanent polyester support, 99.99+%
Chromium, foil, light tested, 25x25mm, thickness 0.01mm, permanent polyester support, 99.99+%
Chromium, microfoil, disks, 10mm, thinness 1.0μm, specific density 719μg/cm2, permanent mylar 3.5μm support, 99.99+%
Chromium, foil, not light tested, 50x50mm, thickness 0.004mm, permanent polyester support, 99.99+%
Chromium, foil, not light tested, 25x25mm, thickness 0.002mm, permanent polyester support, 99.99+%
Chromium, microfoil, disks, 25mm, thinness 0.5μm, specific density 355μg/cm2, permanent mylar 3.5μm support, 99.99+%
Chromium, foil, not light tested, 50x50mm, thickness 0.02mm, permanent polyester support, 99.99+%
Chromium, foil, not light tested, 25x25mm, thickness 0.025mm, permanent polyester support, 99.99+%
Chromium, foil, not light tested, 100x100mm, thickness 0.025mm, permanent polyester support, 99.99+%
Chromium, microfoil, disks, 25mm, thinness 0.05μm, specific density 37.27μg/cm2, permanent mylar 3.5μm support, 99.99+%
Chromium, rod, 50mm, diameter 5.0mm, 99.7+%
Chromium, foil, not light tested, 50x50mm, thickness 0.005mm, permanent polyester support, 99.99+%
Chromium, foil, light tested, 25x25mm, thickness 0.075mm, permanent polyester support, 99.99+%
Chromium, foil, not light tested, 50x50mm, thickness 0.03mm, permanent polyester support, 99.99+%
Chromium, microfoil, disks, 10mm, thinness 0.05μm, specific density 37.27μg/cm2, permanent mylar 3.5μm support, 99.99+%
Chromium, foil, not light tested, 50x50mm, thickness 0.0025mm, permanent polyester support, 99.99+%
Chromium, foil, 100x100mm, thickness 3.0mm, hard, 99.95%
Chromium, foil, light tested, 25x25mm, thickness 0.0125mm, permanent polyester support, 99.99+%
Chromium, foil, light tested, 25x25mm, thickness 0.008mm, permanent polyester support, 99.99+%
Chromium, foil, light tested, 25x25mm, thickness 0.03mm, permanent polyester support, 99.99+%
Chromium, foil, not light tested, 100x100mm, thickness 0.02mm, permanent polyester support, 99.99+%
Chromium, foil, not light tested, 50x50mm, thickness 0.006mm, permanent polyester support, 99.99+%
Chromium, foil, light tested, 25x25mm, thickness 0.04mm, permanent polyester support, 99.99+%
Chromium, foil, not light tested, 25x25mm, thickness 0.004mm, permanent polyester support, 99.99+%
Chromium, foil, 50x50mm, thickness 3.0mm, hard, 99.95%