Multivariate Analysis for the Water Quality Assessment in Rural and Urban Vicinity of Krishna River (India)

Article type: Research Article

Authors: Kengnal, Prakash | Megeri, M.N. | Giriyappanavar, B.S. | Patil, Rahul R.

Affiliations: Department of Statistics, Karnatak Arts College, Dharwad, India | Department of Botany, Karnatak Science College, Dharwad, India

Note: [] Corresponding author: E-mail: [email protected]

Abstract: Water quality has degraded dramatically in the Krishna River (India) due to point and non-point sources. Present investigation aims to assess temporal variations of physical and chemical parameters of the river. Environmental data from rural and urban areas for the period 2007–2012 were compared. A statistical analysis was carried out with six environmental variables considering a multivariate system, analysis of variance and principal component analysis. Statistical analysis divided the river into two zones with different degrees of contamination. The most polluted zone is due to pollution inputs of municipal and industrial origin; this region showed a remarkable deterioration in water quality, mainly due to wastewater discharges.

Keywords: Water quality, multivariate analysis, environmental variables, Krishna river

Journal: Asian Journal of Water, Environment and Pollution, vol. 12, no. 2, pp. 73-80, 2015