Other main industries causing water pollution are sugar mills, distillery, glycerine, tin, paints, soap spinning, rayon, silk, yarn, etc which are discharging poisonous wastes. In 1984, a Central Ganga Authority was established by the government to start the Ganga Action Plan in order to control the Ganga water pollution. According to this plan around 120 factories were identified in 27 cities spreading pollution to a great extent from Haridwar to Hooghly. Gomati river near Lucknow is receiving wastes of around million gallons from the factories of pulp, paper, distillery, sugar, tannery, textile, cement, heavy chemicals, paints and varnishes etc. The condition has become more deteriorating in the last four decades. In order to prevent the water pollution all the industries should follow standard norms, strict laws should be enforced by the Pollution Control Board, arrangement of proper sewage disposal facilities, establishment of sewage and water treatment plant, arrangement of sulabh type toilets and may more.
River Pollution River pollution is form of water pollution that refers to the contamination of rivers. River pollution occurs when waste and different other pollutants are discharged into river without being properly treated. River pollution has negative effect on aquatic ecosystems. The negative impact on plants and animals often leads to decline in species, and sometimes even to extinction of entire species (Yangtze River dolphin). River pollution also leads to decrease in freshwater resources because rivers are among most important sources of freshwater in the world.
Opponents of the dam point out that there are three different kinds of floods on the Yangtze River: floods which originate in the upper reaches, floods which originate in the lower reaches, and floods along the entire length of the river. They argue that the Three Gorges dam will actually make flooding in the upper reaches worse and have little or no impact on floods which originate in the lower reaches. Twelve hundred years of low water marks on the river were recorded in the inscriptions and the carvings of carp at Baiheliang , now submerged.