Environmental pollution control microbiology is an exciting and challenging area of science and engineering. It is concerned with protecting people from pathogenic micro-organisms and the application of microbiology to solve a wide range of environmental pollution problems. Both science and engineering are involved in pollution control. Scientists determine the environmental problems and evaluate different solutions, whereas engineers utilize the information supplied by scientists to design the most efficient systems to solve the environmental problems. The concept of environmental pollution control microbiology has its roots in conventional microbiology with concerns for pathogenic micro-organisms and public health. It can even be traced in chemistry, which forms the basis of all reactions between chemical compounds that make up our world, and in biochemistry, which focuses on the chemistry of biological systems. In fact, microbiology encompasses several scientific fields such as bacteriology, virology, mycology, phycology, protozoology, zoology, biotechnology and mathematics. Handbook of Environmental Microbiology in 3 volumes is the first reference textbook of its kind dealing with a broad spectrum of environmental pollution problems.