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Assessment of trace metal contamination in peri-urban soils in the region of Kenitra - Morocco

Mohammed El Azzouzi, Yahya El Idrissi, Bouamar Baghdad, Soukaina El Hasini, Hamid Saufi, El Habib El Azzouzi


The spatial distribution of trace metals in peri-urban soils from Kenitra city (Morocco) was investigated. A total of 10 soil samples (0-20 cm depth) were collected from the studied area. The physicochemical properties including pH, electrical conductivity and texture were determined. Contents of 6 trace metals (Cd, Cr, Cu, Ni, Zn and Pb) were measured using Atomic Absorption Spectrometry method (AAS).

The results showed that soils of Kenitra city have a sandy texture with a predominance of alkaline pH. The analyzed soil samples can be considered as no salt due to low electrical conductivity values. The trace metals contents revealed that soils are uncontaminated.

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- J. Abraham, K. Dowling, S. Florentine, Assessment of potentially toxic metal contamination in the soil of a legacy mine site in Central Victoria, Australia Chemosphere, 2018, 192, pp. 122-132.

- R. Gerdol, L. Bragazza, R. Marchesini, R. Alber, L. Bonetti, G. Lorenzoni, M. Achilli, A. Buffoni, N. de Marco, M. Franchi, S. Pison, S. Giaquinta, F. Palmieri, P. Spezzano. Monitoring of heavy metal deposition in Northern Italy by moss analysis. Environmental Pollution, 2000, 108, 201-208.

- P. Rademacher, Atmospheric heavy metals and forest ecosystems. UN/ECE,Federal Research Centre for Forestry and Forest Products (BFH). Geneva; 2001, p. 75.

- H. Uwizeyimana, M. Wang, W. Chen & K. Khan, The eco-toxic effects of pesticide and trace metal mixtures towards earthworms in soil. Environmental Toxicology and Pharmacology, 2017, 55, 20-29.

- D. Boust, J.M. Jouanneau, C. Latouche, Bull. (1981). Inst. Géol. Aquitaine Basin, 30 (1981) 72-78.

- C. Tong-Bin, Z. Yuan-Ming, Z. MeiLei, H. Ze-Chun, W. Hong-Tao, C. Huang, F. Ke-Ke, Y. Ke, W. Xiao, T. Qin-Zheng, Assessment of heavy metal pollution in surface soils of urban parks in Beijing, China. Chemosphere, 2005, 60, 542-551.

- Y.Q. Wang, L.Y. Yang, L.H. Kong, E.F. Liu, L.F. Wang & J.R. Zhu, Spatial distribution, ecological risk assessment and source identification for heavy metals in surface sediments from Dongping Lake, Shandong, East China. CATENA, 2015, 125, 200-205.

- R. Bade, S. OH, W.S. Shin, Assessment of metal bioavailability in smelter-contaminated soil before and after lime amendment. Ecotox. Environ. Safe, 2012, 80, pp. 299-307.

- H.J.M. Bowen, Environmental Chemistry of the Elements. Academic Press, New York, 1979.

- C. Bi, Y. Zhou, Z. Chen, J. Jia, X. Bao. Heavy metals and lead isotopes in soils, road dust and leafy vegetables and health risks via vegetable consumption in the industrial areas of Shanghai, China. Sci. Total Environ., 2018, Volumes 619-620, pp. 1349-1357.

- G. Fleming and P. Parle, Heavy metals in soils, herbage and vegetables from an industrialized area west of Dublin city. Irish Journal of Agricultural Research., 1977, 16:35-48.

- D. Baize, Total contents of trace metals in soils (France). References and interpretation strategies, INRA Editions, Paris, 1997.

- U.A. Jayawardena, P. Angunawela, D.D. Wickramasinghe, W.D. Ratnasooriya & P.V. Udagama, Heavy metal-induced toxicity in the Indian green frog: Biochemical and histopathological alterations. Environmental Toxicology and Chemistry, 2017, 36, 2855-2867.

- S. Parra, M.A. Bravo, W. Quiroz, T. Moreno, A. Karanasiou, O. Font, V. Vidal, F. Cereceda. Distribution of trace elements in particle size fractions for contaminated soils by a copper smelter from different zones of the Puchuncav Valley (Chile). Chemosphere, 2014, 111, pp. 513-521.

- B.J. Alloway, Soil processes and the behavior of metals. In Alloway, B.J. (ed.), Heavy metals in soils, 1990, 11-37. London. Blackie.


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