Distribution pattern of trace metal pollutants in the sediments of an urban wetland in the southwest coast of India
2010
Harikumar P.S, | Jisha T.S
A study was carried out to invstigate the concentrations and spatial distribution of trace metals in the sediments of Kottuli Wetland,whuich is in the south west coast of India Eight stations were strategically positioned along the length of wetland and sampled for trace metals (Cu, Mn, Cd, Ni, Pb, Zn &Cr) content. From the analysis, it was observed that the mean concentration of all the analysed trace metals exceeded the average world wide shale concentrations and average Japanese river sediment values. Pollution load index value (PLI) of the studied area ranged from 0.10 to 58.78 which indicated that the wetland sediments were polluted. From the study, PLI of the downstream area of the wetland had the highest values of Cu, Mn, Cd, Zn & Cr. According to the index of Geoaccumulation, Igeo, all the sampling stations may face a severe trace metal pollution contamination problem in the future.
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