This unit is an introductory unit to the principles of environmental engineering. It is intended for professionals who work with professional engineers and may not be from an engineering background. The unit deals with the general principles and planning aspects concerning air, noise, water and land pollution; water supply, drainage and flood mitigation; solid and liquid waste disposal; roads and energy supplies. Aspects of environmental engineering relating to environmental appraisal and assessment of engineering services will also be considered. All assessment tasks must be satisfactorily completed to be eligible to pass the unit.