The growing concerns over availability of clean water have been elucidated in this insightful book. Water pollution is a significant problem globally that requires ongoing investigation and revision of water resource policy at all levels - from international level to individual aquifers and wells. It has been implied that it is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people on a daily basis. In addition to the severe water pollution problems in developing countries, industrialized countries keep struggling with pollution problems as well. Water is commonly referred to as polluted when it is flawed by anthropogenic contaminants and either does not support human usage, such as drinking water, and/or undergoes a marked change in its capability to support its constituent biotic communities, such as fish. Natural phenomena like volcanoes, algae blooms, storms and earthquakes also cause notable changes and shifts in the water quality and the ecological status of water. In course of time, most water pollutants are carried by rivers into the oceans.