Environmental engineering is the branch of applied science and technology as well as engineering distressed with the application of scientific and engineering principles for the preservation of human populations from the effect of unfavourable environmental factors; Defence of environments in both local and global, from the potentially deleterious effects of natural and human activities; and enhancement of environmental quality. The environmental engineering agenda is offered, the department of civil engineering or chemical engineering at engineering faculties. Environmental "civil" engineers focus on hydrology, bioremediation, and water treatment plant design and water resources management.