Environmental impact of mining activity on the pollution of the Medjerda River, north-west Tunisia

Jdid, El-Aïd; Blazy, P.; Kamoun, S.; Guedria, A.; Marouf, BH; Kitane, S.

doi:10.1007/s100640050045

Cited by 15 publications

(10 citation statements)

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“…The found range of Cd is comparable to those found by Afri-Mehnaoui et al (2004), Fernex et al (2001) and Jdid et al (1999) for samples from Algiers Bay (Algeria), Madjeda River (Tunisia) and French coasts (France), respectively. While in Piscinas beach (Italy) much higher range of Cd was found by Caredda et al (1999).…”

Section: Comparison Of the Obtained Results With Those Reported For Osupporting

confidence: 92%

“…The range of Pb in this study (1.3-11.5 μg/g) was almost within the range of that reported by Afri-Mehnaoui et al (2004) for sediments collected from Algiers Bay (Algeria). However, Benamar et al (1999), Jdid et al (1999), Caredda et al (1999), Fernex et al (2001) and Feldstein et al (2003) reported higher values of Pb (up to 772 μg/g). (Benamar et al 1999) d (Jdid et al 1999) e (Fernex et al 2001) f (Feldstein et al 2003) The range of Cd obtained in this study is considered very low compared to the results reported by Caredda et al (1999), whereas, it is within the ranges found in the other studies.…”

Section: Comparison Of the Obtained Results With Those Reported For Omentioning

confidence: 91%

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Determination of heavy metals (Cd, Cr, Cu, Fe, Ni, Pb, Zn) by ICP-OES and their speciation in Algerian Mediterranean Sea sediments after a five-stage sequential extraction procedure

Alomary

Belhadj

2007

Environ Monit Assess

101

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Surface sediment samples (n = 18) were collected from the Algerian Mediterranean coasts and analyzed for seven metals using inductively coupled plasma-optical emission spectrometry in order to asses the distribution and bioavailability of metals and to study the anthropogenic factors affecting their concentrations. Sediment samples were size-fractionated into three sizes: 1,080-500 (coarse), 500-250 (medium), and <250 mm (fine). Bulk sediments were subjected to both sequential extraction and total digestion to evaluate the reliability of the sequential extraction procedure (SEP), while the fractions have been only sequentially extracted for metals speciation. The metals were sequentially extracted into five phases namely exchangeable (P1), carbonates (P2), Fe-Mn oxides (P3), organic (P4) and residual (P5). Metal recoveries in sequential extractions were +/-20% of the independently measured total metal concentrations; the high recovery rates indicate the good reliability of the SEP used in this study. Correlation coefficients indicated that the grain size has an effect on the distribution of metals in the investigated samples. The order of metal levels in the fractions was medium > fine > coarse for all the metals. The average total extractable metal concentrations for Cd, Cr, Cu, Fe, Ni, Pb, and Zn were 1.1, 8.8, 4.7, 1,291.3, 13.9, 5.7 and 20.4 mug/g, respectively. The northeastern shelf had the lowest metal levels while the highest were in northwestern part mainly due to the significant tourism activities in the northwestern part. Comparison of our results to Earth's crust values and to previous studies points out that our samples were relatively unpolluted with respect to the heavy metals investigated; most of the metals are not from anthropogenic sources. Enrichment factors as the criteria for examining the impact of the anthropogenic sources of heavy metals were calculated, and it was observed that the investigated samples were not contaminated with Cr, Cu, and Fe, moderately contaminated with Ni, Pb, and Cd, and contaminated with Cd in some sites. The P5 phase had the highest percents of Cr, Cu, Fe, Ni, and Zn. Cadmium and lead were predominant in the P4 phase, while Cu, Fe and Zn were distributed in the order P5 > P3 > P4 > P2 > P1. The following order of bioavailability was found with the heavy metals Pb > Cr > Cd > Ni > Zn > Cu > Fe.

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Section: Comparison Of the Obtained Results With Those Reported For Osupporting

confidence: 92%

Section: Comparison Of the Obtained Results With Those Reported For Omentioning

confidence: 91%

Determination of heavy metals (Cd, Cr, Cu, Fe, Ni, Pb, Zn) by ICP-OES and their speciation in Algerian Mediterranean Sea sediments after a five-stage sequential extraction procedure

Alomary

Belhadj

2007

Environ Monit Assess

101

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“…Hence, the monitoring of trace metal levels in sediments is of great importance for protecting and ensuring future sustainability of aquatic environments. However, few environmental studies on spatial distribution, identification of pollution sources, and risk assessment of trace metals in stream sediments in entire basin were conducted in Tunisia (Jdid et al 1999;Mlayah et al 2009). …”

Section: Introductionmentioning

confidence: 99%

Spatial assessment and source identification of trace metal pollution in stream sediments of Oued El Maadene basin, northern Tunisia

Ayari

Agnan

Charef

2016

Environ Monit Assess

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An extensive spatial survey was conducted on trace metal content in stream sediments from Oued El Maadene basin, northern Tunisia. Our objectives were to evaluate the level of trace metal pollution and associated ecological risk and identify the major sources of metal pollution. A total of 116 stream sediment samples were collected and analysed for total As, Cd, Cr, Cu, Ni, Pb, V, Zn, and Zr concentrations. The results showed that concentrations of Cr, Ni, V, and Zr were close to natural levels. In contrast, As, Cd, Cu, Pb, and Zn had elevated concentrations and enrichment factors compared to other contaminated regions in northern Tunisia. Ecological risk to aquatic ecosystems was highlighted in most areas. Principal component analysis showed that Cr, Ni, V, and Zr mainly derived from local soil and bedrock weathering, whilst As, Cd, Pb, and Zn originated from mining wastes. Trace metals could be dispersed downstream of tailings, possibly due to surface runoff during the short rainy season. Surprisingly, Cu, and to a lesser extent As, originated from agricultural activities, related to application of Cu-based fungicides in former vineyards and orchards. This study showed that, despite the complete cessation of mining activities several decades ago, metal pollution still impacts the local environment. This large pollution, however, did not mask other additional sources, such as local agricultural applications of fungicides.

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“…The literature contains many other arsenic analyses of mine drainage samples from all over the world, including Mexico (Razo et al, 2004;Mendoza et al, 2006), Montana, USA (Nimick et al, 2003), Arizona, USA (Rösner, 1998), New Mexico, USA (Boulet and Larocque, 1996), South Dakota, USA (May et al, 2001), Colorado, USA (Bednar et al, 2005), Utah, USA (Bednar et al, 2005), Idaho, USA (Bednar et al, 2005), Alaska, USA (Gray and Sanzolone, 1996), Northwest Territories, Canada (Bright, Dodd and Reimer, 1996), British Columbia, Canada Crusius et al, 2003), Ontario, Canada (Azcue and Nriagu, 1995;Ross, Bain and Blowes, 1999), Manitoba, Canada (Moncur et al, 2002), Saskatchewan, Canada (Donahue and Hendry, 2003;Moldovan, Hendry and Jiang, 2001), Spain (Loredo et al, 2004;Loredo et al, 1999;Loredo et al, 2003), France (Migon and Mori, 1999;Bodénan et al, 2004), Río Pilcomayo of Bolivia-Paraguay-Argentina (Hudson-Edwards et al, 2001;Archer et al, 2005), Argentina (Williams, 2001), Tunisia (Jdid et al, 1999), Sweden (Sjöblom, Håkansson and Allard, 2004), Ecuador (Williams, 2001;Appleton et al, 2001), Germany (Zänker et al, 2002;Jakubick, Jenk and Kahnt, 2002), Australia (Ashley et al, 2003), Slovak Republic (Klukanová andRapant, 1999), Republic of Korea Woo and Choi, 2001;Jung, Thornton and Chon, 2002), Poland …”

Section: Mine Drainage Properties and Neutralizationmentioning

confidence: 99%

Arsenic in Natural Environments

Henke

2009

Arsenic

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Environmental impact of mining activity on the pollution of the Medjerda River, north-west Tunisia

Cited by 15 publications

References 0 publications

Determination of heavy metals (Cd, Cr, Cu, Fe, Ni, Pb, Zn) by ICP-OES and their speciation in Algerian Mediterranean Sea sediments after a five-stage sequential extraction procedure

Determination of heavy metals (Cd, Cr, Cu, Fe, Ni, Pb, Zn) by ICP-OES and their speciation in Algerian Mediterranean Sea sediments after a five-stage sequential extraction procedure

Spatial assessment and source identification of trace metal pollution in stream sediments of Oued El Maadene basin, northern Tunisia

Arsenic in Natural Environments

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