Speciation of Heavy Metals in Bottom Sediments of Karra River, Nepal

Authors

  • Sadhana Pradhanang Central Department of Environmental Science, T.U., Kirtipur

DOI:

https://doi.org/10.3126/tuj.v28i1-2.26255

Keywords:

Chemical form, bed sediment, Karra, industrial belt, anthropogenic

Abstract

The chemical forms of copper and zinc have been determined using the fractional scheme of Tessier et al. (1979) in the bed sediments of Karra River, Hetauda, Nepal. The sequential extraction revealed that high percentage of metals was associated in the residual fraction (upstream and downstream). However, in most of the sites in the industrial belt, a significant proportion of metal was associated with the non-residual fraction (64% in Cu and 45% in Zn) which can be remobilized and released to the environment by various physical-chemical processes. This indicates influence of anthropogenic activities on the Karra River

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Author Biography

Sadhana Pradhanang, Central Department of Environmental Science, T.U., Kirtipur

Associate Professor 

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Published

2013-12-02

How to Cite

Pradhanang, S. (2013). Speciation of Heavy Metals in Bottom Sediments of Karra River, Nepal. Tribhuvan University Journal, 28(1-2), 267–272. https://doi.org/10.3126/tuj.v28i1-2.26255

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Articles