Assessment of trace metal contamination in a historical freshwater canal (Buckingham Canal), Chennai, India
MetadataShow full item record
The present study was done to assess the sources and the major processes controlling the trace metal distribution in sediments of Buckingham Canal. Based on the observed geochemical variations, the sediments are grouped as South Buckingham Canal and North Buckingham Canal sediments (SBC and NBC, respectively). SBC sediments show enrichment in Fe, Ti, Mn, Cr, V, Mo, and As concentrations, while NBC sediments show enrichment in Sn, Cu, Pb, Zn, Ni, and Hg. The calculated Chemical Index of Alteration and Chemical Index of Weathering values for all the sediments are relatively higher than the North American Shale Composite and Upper Continental Crust but similar to Post-Archaean Average Shale, and suggest a source area with moderate weathering. Overall, SBC sediments are highly enriched in Mo, Zn, Cu, and Hg (geoaccumulation index (Igeo) class 4– 6), whereas NBC sediments are enriched in Sn, Cu,Zn, and Hg (Igeo class 4–6). Cu, Ni, and Cr show higher than Effects-Range Median values and hence the biological adverse effect of these metals is 20%; Zn, which accounts for 50%, in the NBC sediments, has a more biological adverse effect than other metalsfound in these sediments. The calculated Igeo, Enrichment Factor, and Contamination Factor values indicate that Mo, Hg, Sn, Cu, and Zn are highly enriched in the Buckingham Canal sediments, suggesting the rapid urban and industrial development of Chennai MetropolitanCity have negatively influenced on the surrounding aquatic ecosystem.
Showing items related by title, author, creator and subject.
Assessment of trace metal contamination in a historical freshwater canal (BuckinghamCanal), Chennai, IndiaM, J.; Ramasamy, Nagarajan; P.M., V.; J, S.; R. R., K.; B, U. (2012)The present study was done to assess the sources and the major processes controlling the trace metal distribution in sediments of Buckingham Canal. Based on the observed geochemical variations, the sediments are grouped ...
Geochemical Assessment of Sediment Quality using Multivariate Statistical Analysis of Ennore Creek, North of Chennai, SE Coast of IndiaJayaprakash, M.; Ramasamy, Nagarajan; Velmurugan, P.; Giridharan, L.; Neetha, V.; Urban, B. (2014)The composite nature of Ennore Creek, receiving polluted waters from Buckingham canal, River Kortalaiyar, and the presence of numerous industries rapidly degrade the coastal environment. In this study, multivariate ...
Vertical distribution of heavy metals in soil profile in a seasonally waterlogging agriculture field in Eastern Ganges BasinRajmohan, N.; Prathapar, S.; Jayaprakash, M.; Ramasamy, Nagarajan (2014)The accumulation of heavy metals in soil and water is a serious concern due to their persistence and toxicity. This study investigated the vertical distribution of heavy metals, possible sources and their relation with ...