- Toxicity in semiarid sediments influenced by tailings of an abandoned gold mine.
Toxicity in semiarid sediments influenced by tailings of an abandoned gold mine.
Environmental monitoring and assessment (2014-12-20)
A S Sobrino-Figueroa, O F Becerra-Rueda, V R Magallanes-Ordóñez, A Sánchez-González, A J Marmolejo-Rodríguez
PMID25523271
ABSTRACT
The mining district of El Triunfo (ET-MD) has an estimated 800,000 t of mine wastes scattered in the environment, contaminating the sediment with potentially toxic elements such as As, Cd, Pb, and Zn. In order to estimate the toxicity of the sediment to the adjacent biota, the aims of our study are to calculate the mortality and inhibition through bioassays, using sediment, and test organisms such as Daphnia magna and Selenastrum capricornutum (Pseudokirchneriella subcapitata), respectively. The D. magna mortality was 31 ± 12% and the S. capricornutum growth inhibition was 53 ± 24%. The contamination of the sediment determines the high mortality of D. magna and the high inhibition of S. capricornutum in the system, indicating risk for the biota in the contaminated system.
MATERIALS
Product Number
Brand
Product Description
Gold, insulated wire, 5m, conductor diameter 0.05mm, insulation thickness 0.007mm, polyester insulation, 99.99%
Gold, microfoil, disks, 10mm, thinness 0.5μm, specific density 966μg/cm2, permanent mylar 3.5μm support, 99.99+%
Gold, insulated wire, 1m, conductor diameter 0.075mm, insulation thickness 0.012mm, PTFE (polytetrafluoroethylene) insulation, 99.99%
Gold, insulated wire, 2m, conductor diameter 0.125mm, insulation thickness 0.014mm, polyester insulation, 99.99%
Gold, insulated wire, 0.5m, conductor diameter 0.075mm, insulation thickness 0.012mm, PTFE (polytetrafluoroethylene) insulation, 99.99%
Gold, microleaf disks, 10mm, thinness 0.5μm, specific density 966μg/cm2, removable support, 99.99+%
Gold, insulated wire, 0.5m, conductor diameter 0.025mm, insulation thickness 0.005mm, polyester insulation, 99.99%
Gold, insulated wire, 1m, conductor diameter 0.05mm, insulation thickness 0.007mm, polyester insulation, 99.99%
Gold, microfoil, disks, 10mm, thinness 0.05μm, specific density 101.3μg/cm2, permanent mylar 3.5μm support, 99.99+%
Gold, rod, 100mm, diameter 2.0mm, as drawn, 99.95%
Gold, insulated wire, 0.5m, conductor diameter 0.125mm, insulation thickness 0.014mm, polyester insulation, 99.99%
Gold, rod, 25mm, diameter 3.0mm, as drawn, 99.95%
Gold, rod, 25mm, diameter 4.0mm, as drawn, 99.95%
Gold, tube, 100mm, outside diameter 3.0mm, inside diameter 2.8mm, wall thickness 0.10mm, as drawn, 99.95%
Gold, tube, 200mm, outside diameter 2.0mm, inside diameter 1.7mm, wall thickness 0.15mm, as drawn, 99.95%
Gold, insulated wire, 0.1m, conductor diameter 0.125mm, insulation thickness 0.016mm, PTFE (polytetrafluoroethylene) insulation, 99.99%
Gold, tube, 50mm, outside diameter 8mm, inside diameter 7.8mm, wall thickness 0.1mm, as drawn, 99.95%
Gold, rod, 10mm, diameter 6.0mm, as drawn, 99.95%
Gold, tube, 100mm, outside diameter 1.0mm, inside diameter 0.5mm, wall thickness 0.25mm, as drawn, 99.95%
Gold, tube, 50mm, outside diameter 1.0mm, inside diameter 0.5mm, wall thickness 0.25mm, as drawn, 99.95%
Gold, insulated wire, 0.5m, conductor diameter 0.125mm, insulation thickness 0.016mm, PTFE (polytetrafluoroethylene) insulation, 99.99%
Gold, tube, 100mm, outside diameter 1.60mm, inside diameter 0.6mm, wall thickness 0.5mm, as drawn, 99.95%
Gold, tube, 200mm, outside diameter 1.0mm, inside diameter 0.5mm, wall thickness 0.25mm, as drawn, 99.95%
Gold, rod, 50mm, diameter 3.0mm, as drawn, 99.95%
Gold, microfoil, disks, 10mm, thinness 0.1μm, specific density 204.1μg/cm2, permanent mylar 3.5μm support, 99.99+%
Gold, rod, 6mm, diameter 6.0mm, as drawn, 99.95%
Gold, microfoil, disks, 10mm, thinness 0.01μm, specific density 20.7μg/cm2, permanent mylar 3.5μm support, 99.99+%
Gold, insulated wire, 1m, conductor diameter 0.05mm, insulation thickness 0.007mm, polyimide insulation, 99.99%
Gold, insulated wire, 2m, conductor diameter 0.075mm, insulation thickness 0.012mm, PTFE (polytetrafluoroethylene) insulation, 99.99%