Water quality analysis of surface water: a Web approach
Abstract
The chemical, physical and biological characteristics of water with respect to its suitability describe its quality. Concentration of pesticides or fertilisers degrades the water quality and affects marine life. A comprehensive environmental data information system helps to perform and complete common tasks in less time with less effort for data verification, data calculations, graph generation, and proper monitoring, which helps in the further mitigation step. In this paper, focus is given to a web-based system developed to express the quality of water in the imprecise environment of monitoring data. Water samples were analyzed for eight different surface water parameters, in which four parameters such as pH, dissolved oxygen, biochemical oxygen demand, and fecal coliform were used for the water quality index calculation following MPCB Water Quality Standards of class A-II for best designated use. The analysis showed that river points in a particular year were in very bad category with certainty level of 0–38 % which is unsuitable for drinking purposes; samples in bad category had certainty level that ranged from 38 to 50 %; samples in medium to good category had certainty levels from 50 to 100 %, and the remaining samples were in good to excellent category, suitable for drinking purposes, with certainty levels from 63 to 100 %.
Keywords
Water quality analysis Web based Environment Monitoring Surface water OutlierNotes
Acknowledgments
The authors wish to extend their thanks to the Director, NEERI Nagpur, and MBCB for support.
References
- Alberta Environment and Sustainable Resource Development Communications (2012). http://environment.alberta.ca/01256.html. Accessed 10 November 2011.
- Booth, N. L., Everman, E. J., I-Lin, K., Lori, S., & Lorraine, M. (2007). A Web-based decision support system for assessing regional, water-quality conditions and management actions. Environmental Modelling & Software, 22(2007), 1270–1280.Google Scholar
- CPCB. (2001). Environmental atlas of India. New Delhi: Central Pollution Control Board.Google Scholar
- Dahiya, S., Singh, B., Gaur, S., Garg, V. K., & Kushwaha, H. S. (2007). Analysis of groundwater quality using fuzzy synthetic evaluation. Journal of Hazardous Materials, 147(3), 938–946.CrossRefGoogle Scholar
- Daneshmand S., Huat Bujang B. K., Moayedi H., & Ali Thamer A. M. (2011) Study on Water Quality Parameters of Linggi and Melaka Rivers Catchments in Malaysia. Engineering Journal, 15(4).Google Scholar
- Kumar, A., & Dua, A. (2009). Water quality index for assessement of water quality of river Ravi at Madhopur (India). Global Journal of Environmental Sciences, 8(NO. 1), 49–57.Google Scholar
- Parmar, K., & Parmar, V. (2010). Evaluation of water quality index for drinking purposes of river Subernarekha in Singhbhum District. International Journal of Environmental Sciences, 1, 77–81.Google Scholar
- Puri, P. J., Yenkie, M. K. N., Sangal, S. P., Gandhare, N. V., Sarote, G. B., & Dhanorkar, D. B. (2011). Surface water (lakes) quality assessement in Nagpur city (India) based on water quality index (WQI). Rasayan Journal of Chemistry, 4(No.1), 43–48.Google Scholar
- Singh, K. P., Ankita, B., Amrita, M., & Gunja, J. (2009). Artificial neural network modeling of the river water quality—a case study. Ecological Modelling, 220(2009), 888–895.CrossRefGoogle Scholar
- Verma S.P., & Quiroz-Ruiz A. (2006). Critical values for six Dixon tests for outliers in normal samples up to sizes 100, and applications in science and engineering. Revista Mexicana de Ciencias Geológicas, 23(núm. 2), 133–161.Google Scholar
- Veettil, P. C., Speelman, S., Frija, A., Buysse, J., & van Huylenbroeck, G. (2011). Complementarity between water pricing, water rights and local water governance: A Bayesian analysis of choice behaviour of farmers in the Krishna river basin. India, Ecological Economics, 70, 1756–1766.Google Scholar
- Walfish, S. (2006). PharmTech—a review of statistical outlier methods. http://www.pharmtech.com/pharmtech/article/articleDetail.jsp?id=384716. Accessed Jan 2012.
- Wikipedia (2012). http://en.wikipedia.org/wiki/Web_information_system. Accessed 28 October 2011.
- Yogendra K., Puttaiah E. T. (2008) Determination of Water Quality Index and Suitability of an Urban Waterbody in Shimoga Town, Karnataka. Proceedings of Taal2007: The 12th World Lake Conference. pp. 342–346Google Scholar