1. EPA (Environmental Protection Act) (2002) Standards for effluent discharge regulations. General Notice No. 44 of 2003. Available at http://faolex.fao.org/docs/texts/mat52519.doc . Accessed 09 Mar 2011
2. APHA-AWWA-WPCF (1998) Standard methods for the examination of water and wastewaters, 20th edn. American Public Health Association American Water Works Association and Water Pollution Control Federation, Washington D.C
3. Bose RK, Leitman J (1996) Environmental profile of the Singrauli region, India. Cities 13(2):71–77
4. Chale FM (2002) Trace metal concentrations in water, sediments and fish tissue, Lake Tanganyika. Sci Total Environ 299(1–3):115–121
5. CPCB (1993) Guidelines for the discharge of waste-water in natural water-bodies. Central Pollution Control Board, New Delhi