Surface Water Quality Assessment Tool DEVELOPED BY Asheesh Sharma, Madhuri Naidu, Aabha Sargaonkar Email id: [email protected] Tele-fax: +91-0712-2249990 Environmental System Design and Modelling Division, CSIR-National Environmental Engineering Research Institute, Nagpur-440020, Maharashtra, India
Introduction to SWQAT
The Overall Index of Pollution (OIP) is a single number that expresses the overall water quality by integrating measurements of fourteen different physicochemical, toxicological, and bacteriological water quality parameters. It provides a simple and concise method for water quality classification as, ‘Excellent’, ‘Acceptable’, ‘Slightly Polluted’, ‘Polluted’, and ‘Heavily Polluted’. A computer-automated tool SWQAT has been developed to generate and operate on OIP. The software is developed in VB.Net and SQL database. An open source Google Earth plug-in is integrated with the software for online display of OIP values on Google map.
SWQAT comprise of three modules, namely- Input module, OIP calculation module and Visual interpretation module. The applicability of the software is demonstrated through case study of two rivers of India. OIP values for ten sampling locations on the river Cauvery and eight sampling locations on the river Tungabhadra computed using SWQAT. Software generated kml files of Cauvery and Tungabhadra river is attached with the document. The kml file contains locations of sampling points of Cauvery and Tungabhadra rivers with Overall Index of Pollution values and Water Quality Classification at particular sampling station. Please follow following steps to run given the kml file:
- Download the Google Earth Plug-in from below link url: http://www.google.com/earth/explore/products/plugin.html
- Install the Google Earth Plug-in on local PC.
- Download the Cauvery and Tungabhadra.kml file to your PC 5 Locate created kml file on your system and double click the kmz file to run it.
- Click on any sampling station to know the water quality at that sampling station
Note: The software is capable of generating such kml file for any surface water body and locate the sampling station when longitude and latitude information is provided.