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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2993
Title: Trace metal fractionation in water and sediments of an urban river stretch
Authors: Kumar R.
Rani M.
Gupta H.
Gupta B.
Published in: Chemical Speciation and Bioavailability
Abstract: In this study, the fractionation and ecotoxic potential of Cr, Ni, Cu and Pb in water and sediments of the river Yamuna (Delhi stretch) is presented. The river water is used for various purposes such as irrigation, industrial, domestic and drinking. The investigations suggest that the availability of metals in water follows the sequence Ni>Cr>Pb>Cu whereas a different pattern (Pb>Cu>Ni>Cr) is observed in sediments. Statistically significant spatial variations are indicated by two-way ANOVA in different geochemical forms of the metals and physicochemical parameters of water and sediments of the river Yamuna. Principal component analysis (PCA) suggests a similar source for all four metals probably from the sewage from municipal drains. PCA also indicates some independent sources of Cu and Pb. The hot spots were identified using hierarchical cluster analysis considering bioavailable forms of the metals in water and sediments as objects and the sampling sites as variables. Risk assessment code analysis indicates that metals generally pose medium to high risk at different sites. However, at a few locations either Ni or Pb cross the level of very high ecological risk.
Citation: Chemical Speciation and Bioavailability (2014), 26(4): 200-209
URI: https://doi.org/10.3184/095422914X14142369069568
http://repository.iitr.ac.in/handle/123456789/2993
Issue Date: 2014
Publisher: Science Reviews 2000 Ltd
Keywords: Risk assessment
River Yamuna
Sediments
Trace metal fractionation
Water
ISSN: 9542299
Author Scopus IDs: 55492126800
56363756800
7201691864
7402195167
Author Affiliations: Kumar, R., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 24766, India
Rani, M., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 24766, India
Gupta, H., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 24766, India
Gupta, B., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 24766, India
Funding Details: The authors are indebted to Prof. S.N. Tandon for his useful suggestions during the preparation of this manuscript. One of the authors RK is very grateful to the Ministry of Human Resources and Development (MHRD, Government of India, New Delhi) for sponsorship.
Corresponding Author: Gupta, B.; Department of Chemistry, Indian Institute of Technology RoorkeeIndia
Appears in Collections:Journal Publications [CY]

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