An assessment of metal pollution in surface sediments of Seyhan dam by using enrichment factor, geoaccumulation index and statistical analyses
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The aim of this study was to determine if high concentrations of any heavy metals exist in the sediment of Seyhan Dam reservoir to be considered toxic to the aquatic environment. Surface sediment samples from five stations in the Seyhan dam were collected quarterly from 2004 to 2005 and examined for metal content (Cr, Zn Cu, Mn, Cd, Fe, Ca, K, and Na), organic matter, and grain size. Correlation analyses showed that metal content of Seyhan dam sediment was affected by organic matter and grain size. The results have been compared with values given in the literature. The evaluation of the metal pollution status of the dam was carried out by using the enrichment factor and the geoaccumulation index. A comparison with sediment quality guideline values has also been made. Based on the enrichment factor, dam sediments were treated as a moderately severe enrichment with Cd and minor enrichment with Cr and Mn. The results of geoaccumulation index reveal that sediments of Seyhan Dam were strongly polluted in stations 1, 2, 4, and 5, and were moderately polluted in station 3 with Cd. Moreover, Cd and Cr concentrations in the sediments were above TECs except ERL for Cd.
KeywordsMetal Sediment Enrichment factor Geoaccumulation index Seyhan dam
- Çevik, F., Derici, O. B., Koyuncu, N., & Tuğyan, C. (2007). Water quality and its relation with chlorophyll-a in dry season, in a reservoir of Mediterranean Region. Asian Journal of Chemistry, 19(4), 2928–2934.Google Scholar
- Göksu, M. Z. L., Çevik, F., Fındık, Ö., & Sarıhan, E. (2003). Investigation of Fe, Zn and Cd in Mirror Carp (Cyprinus carpio L., 1758) and Pike Pearch (Stizostedion lucioperca L., 1758) from Seyhan Dam Lake in Turkey. In Turkish. Seyhan Baraj Gölü’ndeki Aynalı Sazan (Cyprinus carpio L., 1758) ve Sudak (Stizostedion lucioperca L., 1758)’larda Fe, Zn, Cd Düzeylerinin Belirlenmesi. Ege University Journal of Fisheries and Aquatic Science, 20(1–2), 69–74.Google Scholar
- Göksu, M. Z. L., Çevik, F., & Sarıhan, E. (1997). Investigation of Chromium (Cr) in the river Çakıt (Pozantı-Adana) in Turkey. In Turkish. Çakıt Suyunda (Pozantı-Adana) Krom Araştırılması. Ege University Journal of Fisheries and Aquatic Science, 14(1–2), 119–126.Google Scholar
- Hart, B. T. (1982). Uptake of trace metals by sediments and suspended particulates: A review. Hydrobiologia, 91, 299–313.Google Scholar
- Loska, K., Cebula, J., Pelczar, J., Wiechula, D., & Kwapulinski, J. (1997). Use of enrichment, and contamination factors together with geoaccumulation indexes to evaluate the content of Cd, Cu, and Ni in the Bybnik water reservoir in Poland. Water, Air and Soil Pollution, 93, 347–365.Google Scholar
- NAVFAC (2003). Guidance for environmental background analyses. Volume II: Sediment. Washington, DC 20374-5065: Naval Facilities Engineering.Google Scholar
- US Environmental Protection Agency. (1994). Microwave assisted acid digestion of sediments, sludges, soils, and oils. Method 3051.Google Scholar
- US Environmental Protection Agency. (2003). Recommended Protocols for Measuring Convential Sediment Variables in Puget Sound. at URL: http://www.psat.wa.gov/Publications/protocols/protocol_pdfs/sed_conv.pdf.