- 期刊
- OpenAccess
Assessment of Heavy Metal in Surface Sediments of Day River at Beni-Mellal Region, Morocco
並列摘要
The Day River receives domestic and industrial untreated wastewaters from Beni-Mellal city and surrounding villages during the last decades. The present study was to obtain a preliminary assessment about the level and distribution of six heavy metals (Cd, Cr, Cu, Pb, Zn and Fe) in its surface sediment collected from 13 stations. The metal concentrations (in mg/kg) ranged: Cd, 0.6-6.27; Cr, 52.34-311.69; Cu, 32.69-740.75; Pb, 72.93- 140.36; Zn, 49.84-149.19; and Fe, 15670-36010. Significant spatial variation in concentrations was observed for all metals. Correlation analyses showed that metal content of sediment was controlled by organic matter and Fe contents. Pollution status was evaluated using the enrichment factor, geo-accumulation index and pollution load index and sediment quality guidelines. Based on geoaccumulation index and enrichment factors, Day sediment was treated as unpolluted to moderately polluted with Zn, Fe, Cr and Cu and moderate to considerable with Pb and Cd. Pollution load index and sediment quality guidelines showed that the metal levels exceed local and regional background concentrations, indicating contamination is high enough to be of risk to human health and ecosystem.
延伸閱讀
- 龐炳東（1997）。Lateral Fluvial Processes in the Upper Reaches of Reservoir in River System with Hight Concentration。中華水土保持學報，28(3)，201-210。https://doi.org/10.29417/JCSWC.199709_28(3).0004
- Lee, A. S. (2017). Study of heavy metal distribution in sediment cores of the Nankan River, Taoyuan [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU201703435
- 林俊全、陳毅青、林建偉、任家弘、阿信‧舒特、瑪格利特‧博斯（2008）。Experiment on Fluvial Processes of Conglomerate channel-an Example of Hoyenshan Conglomerate Sediments。環境與世界，(17)，21-36。https://doi.org/10.6304/EAW.2008.17.2
- Voolma, M., Soesoo, A., Puura, V., Hade, S., & Aosaar, H. (2016). Assessing the geochemical variability of oil shale in the Attarat Um Ghudran deposit, Jordan. Proceedings of the Estonian Academy of Sciences. Geology, 65(2), 61-74. https://doi.org/10.3176/earth.2016.06
- Voolma, M., Soesoo, A., Puura, V., Hade, S., & Aosaar, H. (2016). Assessing the geochemical variability of oil shale in the Attarat Um Ghudran deposit, Jordan. Estonian Journal of Earth Sciences, 65(2), 61-74. https://doi.org/10.3176/earth.2016.06