Cause of water pollution

Most of the sources of water pollution in industrialized countries are from chemical contamination, either from the deposit of chemicals in soil or drains, or through accidental spills. Oil spills, for example, can occur in wells inland or on sea going vessels and can pollute the water at a distance of miles from the spill. Industrial factories also dump untreated waste into the water, although this is rare in developed countries due to strict government regulations regarding the disposal of hazardous materials.In developing countries untreated industrial waste will be the major cause of pollution as the regulators are often tax while monitoring polluting industries.