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Évaluation de la pollution des sols par les métaux lourds dans une cimenterie ougandaise

Évaluation de la pollution des sols par les métaux lourds dans une cimenterie ougandaise


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About the Book

La contamination des sols par les métaux lourds est l'un des principaux problèmes de santé dans le monde entier en raison de leurs effets cumulatifs à long terme. Cette étude a examiné les concentrations des 3 métaux lourds sélectionnés (Pb, Cr et Cd) dans les sols autour de la cimenterie de Tororo dans le sous-comté d'Osukuru, district de Tororo, dans l'est de l'Ouganda. Trois échantillons de sol ont été prélevés de chaque côté de la cimenterie (Est, Ouest, Sud et Nord) à des distances variables de (100, 200 et 300) m du mur d'enceinte de la cimenterie, soit 12 échantillons de sol au total prélevés autour de la cimenterie, tandis que 3 échantillons de sol ont été prélevés sur le site témoin de Chamilula. Des poids connus d'échantillons de sol séchés au four ont été digérés à l'aide d'acide nitrique et d'acide chlorhydrique. Les digestats ont été analysés pour les métaux lourds sélectionnés à l'aide d'un spectrophotomètre d'absorption atomique à flamme. Les concentrations de métaux autour de la cimenterie variaient de 7,80 à 22,80 mg/kg pour le Cr, de 0,76 à 1,49 mg/kg pour le Cd et de 29,80 à 61,60 mg/kg pour le Pb, tandis que sur le site témoin de Chamilula, elles variaient de 4,70 à 4,80 mg/kg pour le Cr, de 0,10 à 0,11 mg/kg pour le Cr et de 11,59 à 11,70 mg/kg pour le Pb.


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Product Details
  • ISBN-13: 9786208039998
  • Publisher: KS Omniscriptum Publishing
  • Binding: Paperback
  • Language: French
  • Returnable: N
  • Weight: 100 gr
  • ISBN-10: 6208039991
  • Publisher Date: 31 Aug 2024
  • Height: 229 mm
  • No of Pages: 60
  • Spine Width: 4 mm
  • Width: 152 mm


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