Comparative analysis of land use and lake water quality in rural and urban zones of south Chennai, India
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Chennai city, the capital of Tamil Nadu state in South India, has been experiencing rapid expansion since the last two decades, resulting in major changes in land use and degradation of wetlands. Small lakes in the peri-urban areas face severe strain on their environment due to transition of rural to urban conditions, leaving at stake their aquatic health and intended uses. This paper studies the role of urbanization and land use changes in the water quality of peri-urban (Rajakilpakkam) and rural (Vengaivasal) lakes. Water samples were collected and analysed for temperature, total dissolved solids, major ions, nutrients and biological oxygen demand as per standard methods. The temperature, pH and biological oxygen demand did not differ between lakes, while total dissolved solids (p = 0.008), alkalinity (p = 0.000), total hardness (p = 0.001) and phosphate (p = 0.000) were significantly higher in Rajakilpakkam. Seasonal and spatial variations in water quality between the lakes showed the direct impact of rapid and uncontrolled growth of built-up areas in the catchment area, in enhancing waste water inflows with inorganic salts and nutrients in Rajakilpakkam lake compared with Vengaivasal lake. Urbanization of the catchment and encroachments in Rajakilpakkam lake tends to reduce the social interdependence of lake and community and promote disuse, leading to decline in water quality. The impending environmental costs caused by urbanization to these lakes will only be tackled, if the main issues of domestic and industrial discharges and encroachments are addressed properly.
KeywordsPeri-urban–rural lakes Pollution Water quality Urbanization Encroachments
This paper is based on the research undertaken through the “Crossing Boundaries Project–Regional Capacity Building on Integrated Water Resources Management (IWRM)” funded by Government of Netherlands through Wageningen University and SaciWATERs, Hyderabad, India.
- Aichele, S. (2005). Effects of urban land-use change on stream flow and water quality in Oakland County, Michigan, 1970–2003, as inferred from urban gradient and temporal analysis. US Geological Survey Scientific Investigations Report. US Geological Survey.Google Scholar
- Clescerl, L. S., Greenberg, A. E., & Eaton, A. D. (1998). Standard methods for water and wastewater analysis (20th ed.). Washington, DC: American Public Health Association.Google Scholar
- CPCB. (2007). Guidelines for water quality monitoring. MINARS/27/2007-08, Central Pollution Control Board, Government of India.Google Scholar
- Datta, P. (2006). Urbanization in India, regional and sub regional dynamic population process in urban areas. Kolkata: European population conference.Google Scholar
- Gower, A. M. (1980). Water quality in catchment ecosystems. New York: Wiley.Google Scholar
- Jumbe, A. S., Nandini, N., Tandon, S., & Sunitha, N. (2008). Bangalore lakes–issues and perspectives on pollution, restoration and management. Proceedings of Taal2007: The 12th world lake conference, pp. 1699–1706.Google Scholar
- Nie, N. H., Hull, C. H., Jenkins, J. G., Steinbrenner, K., & Bent, D. H. (1975). SPSS: Statistical package for the social sciences (2nd ed.). New York: McGraw-Hill.Google Scholar
- Padmanabha, B., & Belagali, S. L. (2008). Ostracods as indicators of pollution in the lakes of Mysore. Journal of Environmental Biology, 29(3), 415–418.Google Scholar
- Rahman, I. M. M., Islam, M. M., Hossain, M. M., Hossain, M. S., Begum, Z. A., Chowdhury, D. A., et al. (2010). Stagnant Surface Water Bodies (SSWBs) as an alternative Water Resource for the Chittagong Metropolitan Area of Bangladesh: Physicochemical characterization in terms of water quality indices. Environmental Monitoring and Assessment. doi: 10.1007/s10661-010-1414-7.Google Scholar
- Ratnavel, S. M., & Gomathinayagam, P. (2006). In search of ancient wisdom: Irrigation tanks (1st ed.). Madurai: Dhan Foundation.Google Scholar
- Raveen, R., Chennakrishnan, C., & Stephen, A. (2008). Impact of pollution on the quality of water in three freshwater lakes of suburban Chennai. Nature, Environment and Pollution Technology, 7(1), 61–64.Google Scholar
- Shivanikar, S. V., Patil, P. M., Vaidya, D. P., & Bandela, N. N. (1999). Environmental temperature fluctuations determine dissolved oxygen level in Godavari river water. Pollution Research, 18(4), 415–418.Google Scholar
- Singh, D. N. (2000). Seasonal variation of zooplankton in a tropical lake. Geobiology, 27(2–3), 97–100.Google Scholar
- Sinha, S. N., & Biswas, M. (2011). Analysis of physico-chemical characteristics to study the water quality of a lake in Kalyani, West Bengal. Asian Journal of Experimental Biological Sciences, 2(1), 18–22.Google Scholar
- Solanki, V. R., Hussain, M. M., & Raja, S. S. (2009). Water quality assessment of lake Pandu Bodhan, Andhra Pradesh, India. Environmental Monitoring and Assessment, 163(1–4), 411–419.Google Scholar
- United States Environmental protection Agency. (2001). Spatial and temporal patterns of stream temperature. Temperature water quality criteria guidance development project.Google Scholar
- Vaidyanathan, A. (2001). Tanks of South India. Delhi: Centre for Science and Environment.Google Scholar
- Wetzel, R. G. (2001). Limnology: Lake and river ecosystems (3rd ed.). San Diego: Academic Press.Google Scholar
- Wurts, W. A., & Durborow, R. M. (1992). Interactions of pH, carbon dioxide, alkalinity and hardness in fish ponds. Resource document. Southern Regional Aquaculture Center Publication. https://srac.tamu.edu/index.cfm/event/getFactSheet/whichfactsheet/112/. Accessed 18 November 2011.