2012
DOI: 10.2174/1876397901203010002
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Heavy Metal Contamination and Mobility at the Mine Area of Draa Lasfar (Morocco)

Abstract: Abstract:The present study represents a first insight into the Draa Lasfar mine (Marrakech) to assess the possible diffusion of heavy metals and to predict the risk of their mobility in the surroundings of the mine area. The edaphologic parameters pH, electrical conductivity (EC), loss on ignition (LOI) and CaCO 3 were measured according to standard methods, whilst heavy metals concentration was determined by FP-XRF. Concentration enrichment ratios (CER) were calculated in order to estimate the anthropogenic c… Show more

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Cited by 17 publications
(4 citation statements)
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“…Draa Lasfar mine involves a deposit of pyrite located 10 km northwest of Marrakech city ( Figure 1) that can pose a risk to the environment due to tailings discharges surrounding the mine area (Avila et al, 2012).…”
Section: Site Descriptionmentioning
confidence: 99%
“…Draa Lasfar mine involves a deposit of pyrite located 10 km northwest of Marrakech city ( Figure 1) that can pose a risk to the environment due to tailings discharges surrounding the mine area (Avila et al, 2012).…”
Section: Site Descriptionmentioning
confidence: 99%
“…The sequential extraction was performed using five-step procedure (Fuentes et al, 2004). Additionally, a sixth step was added, which consisted of dissolving the final residue using the same digestion procedure for the total metal determination (Gleyzes et al, 2002;Avila et al, 2012). (F5) Organic-Bound: The residue from Fe-Mn oxides bound fraction was extracted with 3 ml of 0.02M HNO3 and 5 ml of 30% H2O2 (adjusted to pH 2 with HNO3) was added and the mixture heated to 85°C for 3 hours, with occasional agitation.…”
Section: Methodsmentioning
confidence: 99%
“…Sequential extraction was used to assess heavy metal speciation in the samples, utilizing a five-step procedure [22] . Additionally, a sixth step was added to dissolve the final residue, using the same digestion procedure, for the determination of total metal [11] .…”
Section: Site Descriptionmentioning
confidence: 99%
“…In mining areas, high levels of heavy metals can accumulate in nearby agricultural soils, food crops and watercourse systems due to the release and dispersal of mining waste [8][9][10] . This presents a potential health risk to residents living close to mining areas [10,11] . The intensive mining activity in the Marrakech region poses a significant danger due to the large quantities of heavy metals that are released into the environment.…”
Section: Introductionmentioning
confidence: 99%