title: From poison ponds to pleasure spots.
abstract: The Hyderabad Metropolitan Area had 562 lakes at one time, but only 162 now remain. These are polluted to various degrees and pose environmental and health hazards. The Hussain Sagar Lake provided water for irrigation and drinking until 1930 and supported aquatic life till 1976. It is now contaminated by organic chemicals discharged by many industrial estates in its basin. An estimated 28,190 cmum of industrial effluents and domestic sewage are let into it daily. Phenols, benzenes, cyanides, and toxic metals make it poisonous. The ground water around the lake is also polluted. The polluted lakes ruin vegetable farms, kill fetuses in the womb, and cause mental retardation, still births, and infertility. In the city's outskirts, clinically confirmed cancer is 11 times higher and heart ailments 16 times more than elsewhere. The Hyderabad Urban Development Authority (HUDA) took up a Lake Conservation and Restoration Project as part of its Green Environment Program in 2002. Several lakes have been restored by setting up effluent (or sewage) treatment plants. HUDA also built lake parks with recreation facilities and environment education centers. HUDA also organized jointly with the World Water Institute, Pune, India, an international workshop on urban lake conservation and management in June 2003. It adopted the Hyderabad Declaration which, among other things, states the worthy aim of restoring all the water bodies by 2009. Even if it takes a few more years, the restoration of all the polluted lakes will usher in multiple benefits to Hyderabad citizens.
authors.affiliation: Osmania University, Hyderabad, India. nag1931@yahoo.co.in
authors.forename: E Nageswara
authors.initials: EN
authors.lastname: Rao
mesh_terms: D003247:Conservation of Natural Resources; D004463:Ecology; D017753:Ecosystem; D004777:Environment; D004784:Environmental Monitoring / Q000379:methods*; D004787:Environmental Pollution; D005618:Fresh Water; D007194:India; D007220:Industrial Waste; D014873:Water Pollutants; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014876:Water Pollution; D014881:Water Supply
chemical_list: D007220:Industrial Waste; D014873:Water Pollutants; D014874:Water Pollutants, Chemical