Abstract:
:The distribution and accumulation of heavy metals in the sediments of two rivers which cross various agglomerations of Tangier city, Morocco, were investigated. Surficial sediment samples were collected during 2005 and characterized for metal content (Zn, Pb, Cd, Cu, Cr and Ni), organic matter, total nitrogen, and n-hexane extractable material (HEM). The organic components (organic carbon, total nitrogen and HEM) show a slightly increasing enrichment from the upstream to the downstream of the emissary. An evaluation of the heavy metal pollution status of both tributaries was carried out using the metal pollution index (MPI). The results revealed the importance of anthropic pressure and the zones influenced by industrial discharges, which keep the metals Pb, Cr and Ni at high levels. Comparison with international regulatory guidelines for sediments revealed serious contamination of Cr, Zn and Ni.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Rodríguez-Barroso MR,Benhamou Y,Coello D,El Moumni B,García-Morales JLdoi
10.1080/09593330903397763subject
Has Abstractpub_date
2010-02-01 00:00:00pages
155-64issue
2eissn
0959-3330issn
1479-487Xjournal_volume
31pub_type
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