Encyclopaedia of Environmental Water Pollution which is compiled and judiciously edited in three volumes, deals with the scientific discussion of water pollution, its adverse effects on the human beings and the environment and as well as various methods of its control.The set contains the latest development happened on the subject during the last two decades. The text has been treated in a rigorous and quantitative manner, many such concepts which are helpful in the solution of problems of water pollution have been dealt in. Data from developed and underdeveloped countries are included to make the study more meaningful and interesting. This set which assumed no previous knowledge of the subject has been based on the various methods which the editor has followed over a number of years of teaching water pollution at all levels to be most easily understood by the students. Complex mathematical treatment is avoided in the text but simple mathematics has been used at scattered places. The set serves the compelling demands of the environmentalist, civil and environmental engineers, operators of water treatment plants, environmental protection agencies, conservationists, law enforcement agencies, public administrators and such persons who are involved directly or indirecdy with water pollution. It is also for research scholars. Keeping in view the size and treatment of text, the work has become monumental in the field of environmental sciences.