Title: Water quality assessment of Yamuna River in Delhi region using index mapping

Authors: Deeksha Katyal; Ahmed Qader; Ali Hayder Ismail; Kiranmay Sarma

Addresses: University School of Environment Management, GGS Indraprastha University, Dwarka 16C, New Delhi – 110075, India. ' University School of Environment Management, GGS Indraprastha University, Dwarka 16C, New Delhi – 110075, India. ' University School of Environment Management, GGS Indraprastha University, Dwarka 16C, New Delhi – 110075, India. ' University School of Environment Management, GGS Indraprastha University, Dwarka 16C, New Delhi – 110075, India

Abstract: Water quality indices (WQI) were introduced with the aim of reducing great amount of parameters into a simpler expression and enabling easy interpretation of monitoring data. In this study, an attempt has been made to devise a methodology to integrate the WQI with geographic information system (GIS) for an effective interpretation of the quality status of the river. River Yamuna in Delhi has been taken as a case study and the physical and chemical analysis has been interpreted using WQI. Final elucidation of the water quality has been done on a map using GIS. Water samples were collected from Yamuna River from Wazirabad barrage to ITO barrage and were analysed for physiochemical parameters. Based on the results of the analyses, spatial distribution maps of selected water quality parameters were prepared using ArcInfo software. The overall index of pollution (OIP) based on the individual index values was estimated giving the values in terms of pollution indices.

Keywords: water quality assessment; Yamuna River; geographic information systems; GIS; overall index of pollution; OIP; water quality indices; WQI; India; water pollution; river quality.

DOI: 10.1504/IER.2012.047796

Interdisciplinary Environmental Review, 2012 Vol.13 No.2/3, pp.170 - 186

Published online: 16 Aug 2014 *

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