Water quality refers to the different chemical, radiological, physical and biological characteristics of water. It also refers to the measurement of the condition of water taking into consideration its usefulness and need for different purposes. Water is treated for three major utilizations of human consumption, industrial use, and environmental health. Different parameters such as pH, turbidity, dissolved oxygen, temperature, etc. are measured for determining water quality. Sample collection, chemical analysis and real-time monitoring are employed for the assessment of water quality. The objective of this book is to give a general view of the diverse assessment and management processes of water quality. Different approaches, evaluations, methodologies and advanced studies on water quality have been included herein. This book, with its detailed analyses and data, will prove immensely beneficial to professionals and students involved in this area at various levels.