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The swan mussel (Anodonta cygnea) in Anzali wetland of Iran, a potential biomonitor for Cd and Pb.

The swan mussel (Anodonta cygnea) in Anzali wetland of Iran, a potential biomonitor for Cd and Pb.

Bulletin of environmental contamination and toxicology (2014-06-18)

Saeed Ganjali, Samar Mortazavi

ABSTRACT

Protecting wetlands from environmental pollution has been of significant importance, as they are the vital habitats for various kinds of birds and animals. This study has aimed to monitor the contamination of Cd and Pb in Anzali wetland, located in the north of Iran using a mussel biomonitor. The contents of Cd and Pb were measured in the surface sediment, the soft tissue, and the shell of A. cygnea. The samples were collected from four sites in the region. The results demonstrated that the shell of A. cygnea can be employed as a precise case for biomonitoring of Cd and Pb, due to the higher biota-sediment accumulation factor and the lower coefficient of variation values found in the shell compared with the soft tissue, and also according to the positive correlation between Cd and Pb levels in the shell of A. cygnea and the sediment.

MATERIALS

Product Number

Brand

Product Description

Sigma-Aldrich

Cadmium, granular, 30-80 mesh, ≥99%

Sigma-Aldrich

Cadmium, shot, 3 mm, 99.999% trace metals basis

Sigma-Aldrich

Cadmium, powder, −100 mesh, 99.5% trace metals basis

Sigma-Aldrich

Cadmium, granular, ≥99%, 5-20 mesh

Sigma-Aldrich

Lead, powder, −325 mesh, ≥99% trace metals basis

Cadmium, foil, not light tested, 25x25mm, thickness 0.01mm, 99.7+%

Cadmium, foil, 15mm disks, thickness 1.0mm, as rolled, 100%

Cadmium, wire reel, 5m, diameter 0.5mm, hard, 99.95+%

Cadmium, foil, 100x100mm, thickness 3.0mm, as rolled, 99.9%

Cadmium, foil, 10mm disks, thickness 0.125mm, as rolled, 99.95%

Lead, foil, not light tested, 100x100mm, thickness 0.007mm, 99.99+%

Cadmium, foil, 25x25mm, thickness 0.125mm, as rolled, 99.99+%

Cadmium, wire reel, 1m, diameter 1.2mm, as drawn, 99.99+%

Cadmium, foil, 4mm disks, thickness 0.01mm, 99.7+%

Cadmium, wire reel, 0.5m, diameter 1.0mm, hard, 99.999%

Lead, foil, light tested, 25x25mm, thickness 0.009mm, 99.99+%

Cadmium, foil, 300x300mm, thickness 2.0mm, as rolled, 99.99%

Cadmium, foil, 15mm disks, thickness 0.25mm, as rolled, 99.99+%

Cadmium, wire reel, 0.2m, diameter 0.70mm, as drawn, 99.99+%

Cadmium, foil, 10mm disks, thickness 0.025mm, 99.7+%

Cadmium, wire reel, 10m, diameter 0.25mm, hard, 99.99+%

Cadmium, foil, 10mm disks, thickness 0.01mm, 99.7+%

Cadmium, foil, 30x100mm, thickness 0.5mm, as rolled, 99.999%

Lead, foil, not light tested, 50x50mm, thickness 0.004mm, 99.99+%

Cadmium, foil, not light tested, 50x50mm, thickness 0.005mm, 99.7+%

Cadmium, foil, not light tested, 25x25mm, thickness 0.005mm, 99.7+%

Cadmium, foil, 6mm disks, thickness 0.25mm, as rolled, 99.95%

Cadmium, foil, not light tested, 25x25mm, thickness 0.025mm, 99.7+%

Cadmium, foil, 8mm disks, thickness 0.005mm, 99.7+%

Cadmium, foil, 8mm disks, thickness 0.125mm, as rolled, 99.95%