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Environmental Chemistry Letters

, Volume 7, Issue 1, pp 67–78 | Cite as

Sedimentary records of anthropogenic contribution to heavy metal content in Oum Er Bia estuary (Morocco)

  • B. Zourarah
  • M. Maanan
  • M. Robin
  • C. Carruesco
Original Paper

Abstract

Levels of heavy metals (Cd, Hg, Cr, Cu, Fe, Mn, Ni, Pb and Zn), organic carbon content and textural characteristics in the superficial and cored sediments of Oum Er Bia estuary have been studied. The anthropogenic fluxes of heavy metals were determined in two sediment cores collected in the estuary, facing urban sewages. A dated estuarine core from the inter-tidal area was assessed using 210Pb and 137Cs data. These data indicate that the mean sedimentation rates are 0.38–68 cm year−1. The analytical results and the radio-dating of sediment cores show extremely high concentrations of Zn, Pb and Cu in the sediments that can be ascribed mostly to the discharge of the liquid effluent from the sewage since the late 1960s, decreasing towards the present day. The pollution intensity of the estuary is determined by the enrichment factors, which show that the Oum Er Bia estuary is moderately polluted to polluted.

Keywords

Estuary Sediment Heavy metals Pb isotopes Enrichment factor 

Notes

Acknowledgments

The authors gratefully acknowledge anonymous reviewers for their scientific suggestions and constructive comments. This study is supported by grants from integrated action Moroccan-French “MA/04/101”. We would like to thank J-M Jouanneau (University of Bordeaux, France) for technical assistance on the subject of 210Pb and 137Cs analysis.

References

  1. Balachandran KK, Lalu Raj CM, Nair M, Joseph T, Sheeba P, Venugopal P (2005) Heavy metal accumulation in a flow restricted, tropical estuary. Estuar Coast Shelf Sci 65(1–2):361–370CrossRefGoogle Scholar
  2. Baptista Neto JA, Smith BJ, McAllister JJ (2000) Heavy metal concentrations in surface sediments in a nearshore environment of Jurujuba Sound, Southeast Brazil Environ Pollut 109:1–9CrossRefGoogle Scholar
  3. Bertolotto RM, Tortarolo B, Frignani M, Bellucci LG, Albanese S, Cuneo C, Alvarado-Aguilar D, Picca MR, Gollo E (2005) Heavy metals in surficial coastal sediments of the Ligurian Sea. Mar Pollut Bull 50(3):348–356CrossRefGoogle Scholar
  4. Bidet JC, Carruesco C (1982) Etude sédimentologique de la lagune de Oualidia (Maroc). Oceanologica Acta, N° Sp. 29–37Google Scholar
  5. Birch G (2003) A scheme for assessing human impacts on coastal aquatic environments using sediments. In: Woodcoffe CD, Furness RA (eds) Coastal GIS 2003. Wollongong University Papers in Center for Maritime Policy, 14, AustraliaGoogle Scholar
  6. Cearreta A, Irabien MJ, Leorri E, Yusta I, Croudace IW, Candy AB (2000) Recent anthropogenic impacts on the Bilbao estuary, Northern Spain: geochemical and microfaunal evidence. Estuar Coast Shelf Sci 50:571–592CrossRefGoogle Scholar
  7. Cheggour C, Chafik A, Fisher NS, Benbrahim S (2005) Metal concentrations in sediments and clams in four Moroccan estuaries. Mar Environ Res 59(2):119–137CrossRefGoogle Scholar
  8. Covelli S, Fontolan G (1997) Application of a normalization procedure in determining regional geochemical baseline. Environ Geol 30:34–35CrossRefGoogle Scholar
  9. Dassenakis M, Adrianos H, Depiazi G, Konstantas A, Karabela M, Sakellari A, Scoullos M (2003) The use of various methods for the study of metal pollution in marine sediments, the case of Euvoikos Gulf, Greece. Appl Geochem 18:781–794CrossRefGoogle Scholar
  10. Etcheber H, Relexans JC, Beliard M, Weber O, Buscail R, Heussner S (1999) Distribution and quality of sedimentary organic matter on the Aquitanian margin (Bay of Biscay). Deep-Sea Res II 46:2249–2288CrossRefGoogle Scholar
  11. Förstner U (1983) Assessment of metal pollution in rivers and estuaries. In: Thornton I (ed) Applied environmental geochemistry, Academic Press, London, pp 395–423Google Scholar
  12. Förstner U, Wittmann GTW (1979) Metal pollution in the aquatic environment. Springer, New YorkCrossRefGoogle Scholar
  13. França S, Vinagre C, Caçador I, Cabral HN (2005) Heavy metal concentrations in sediment, benthic invertebrates and fish in three salt marsh areas subjected to different pollution loads in the Tagus Estuary (Portugal). Mar Pollut Bull 50(9):998–1003CrossRefGoogle Scholar
  14. Green-Ruiz C, Pàez-Osuna F (2001) Heavy metal anomalies in lagoon sediments related to intensive agriculture in Altata-Ensenada del Pabellon coastal system (SE Gulf of California). Environ Int 26:265–273CrossRefGoogle Scholar
  15. Heyes A, Mason RP, Kim E-H, Elsie Sunderland E (2006) Mercury methylation in estuaries: insights from using measuring rates using stable mercury isotopes. Mar Chem 102(1–2):134–147CrossRefGoogle Scholar
  16. Lide DR, Frederikse HPR (1993) CRC handbook of chemistry and physics. 74th edn CRC Press, Boca RatonGoogle Scholar
  17. Loring DH, Rantala RTT (1992) Manual for the geochemical analyses of marine sediments and suspended particulate matter. Earth Sci Rev 32:235–283CrossRefGoogle Scholar
  18. Maanan M (2007) Biomonitoring of heavy metals using Mytilus galloprovincialis in Safi coastal waters, Morocco. Environ Toxicol 22:525–531CrossRefGoogle Scholar
  19. Maanan M, Zourarah B, Carruesco C, Aajjane A, Naud J (2004) The distribution of heavy metals in the Sidi Moussa lagoon sediments (Atlantic Moroccan Coast). J Afr Earth Sci 39:473–483CrossRefGoogle Scholar
  20. Marchand C, Lallier-Vergès E, Baltzer F, Albéric P, Cossa D, Baillif P (2006) Heavy metals distribution in mangrove sediments along the mobile coastline of French Guiana. Mar Chem 98(1, 2):1–17CrossRefGoogle Scholar
  21. Oldfield F, Appleby PG (1984) Empirical testing of 210Pb-dating models for lake sediments. In: Hayworth EY, Lund JWG (eds) Lake sediments and environmental history, Leicester University Press, Leicester, pp 93–124Google Scholar
  22. Pekey H (2006) The distribution and sources of heavy metals in Izmit Bay surface sediments affected by a polluted stream. Mar Pollut Bull 52(10):1197–1208CrossRefGoogle Scholar
  23. Puig P, Palanques A, Sanchez-Cabeza JA, Masque P (1999) Heavy metals in particulate matter and sediments in the southern Barcelona sedimentation system (North-western Mediterranean). Mar Chem 63:311–329CrossRefGoogle Scholar
  24. Reimann C, de Caritat P (2005) Distinguishing between natural and anthropogenic sources for elements in the environment: regional geochemical surveys versus enrichment factors. Sci Total Environ 337:91–107CrossRefGoogle Scholar
  25. Ruiz F (2001) Trace metals in estuarine sediments from the southwestern Spanish coast. Mar Pollut Bull 42:482–490Google Scholar
  26. Shaw TJ, Gieskes JM, Jahnke RA (1990) Early diagenesis in differing depositional environments. The responses of transition metals in pore water. Geochim Cosmochim Acta 54:1233–1246CrossRefGoogle Scholar
  27. Veyssy E, Etcheber H, Lin RG, Buat-Menard P, Maneux E (1999) Seasonal variation and origin of Particulate Organic Carbon in the lower Garonne River at La Réole (Southwestern France). Hydrobiologia 391:113–126CrossRefGoogle Scholar
  28. Von Gunten HR, Sturm M, Moser RN (1997) 200-Year record of metals in Lake Sediments and natural background concentrations. Environ Sci Technol 31:2193–2197CrossRefGoogle Scholar
  29. Zourarah B, Maanan M, Carruesco C, Aajjane A, Mehdi K, Conceição Freitas M (2007) Fifty-year sedimentary record of heavy metal pollution in the lagoon of Oualidia (Moroccan Atlantic coast). Estuar Coast Shelf Sci 72:359–369CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • B. Zourarah
    • 1
  • M. Maanan
    • 2
  • M. Robin
    • 2
  • C. Carruesco
    • 3
  1. 1.Department of Geology, Faculty of SciencesUniversity of Chouaib DoukkaliEl JadidaMorocco
  2. 2.UMR 6554 LETG, GéolittomerUniversity of NantesNantesFrance
  3. 3.Department of Geology and OceanographyBordeaux I UniversityBordeauxFrance

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