Kuppusamy, M.R. and Giridhar, V.V.
(2006)
Trace metal speciation in environmental aquartic samples of palar river, Mahabalipuram and its adjoining coast.
Bulletin of Electrochemistry, 20 (3).
pp. 119-124.
ISSN 0256-1654
Abstract
Surface waters fr-urn 6 stations of riverine and coastal waters of Palar river, Mahabalipurm were collected.
Thc hydrographic parameters for these salnples were determined by conventional techniques. Tlie DPASV
technique was used for the determination of various forms of trace metals like Zn, Pb, Cu and Cd. The
total dissolved metals were determined after UV-irradiation of the 0.45 p filtered water samnples. The ASY
labile metals in the filtered water samples were determined at natural pH. The suspended particulate matter
retained on the 0.45 filter paper were digested by using strong acids aad the same were used for the
determination of suspended particulate bound metals. The total dissolved lnetals were in general high at
the riverine stations compared to coastal stations. However, last two stations on the seaside were showing
higher values relative to the station close to the mixing zone. It was found that the percentages of ASV
labile and nun-labile forms varied widely with respect to the season at different stations. The particulate
Zn, Pb and Cu were showing higher values in the monsoon season in riverine waters and in the
summer/pre-monsoon for coastal waters. The higher values of the metals in the riverine side and last two
stations on the seaside iridicate trace metal pollution in the transect.
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