Traditionally environmental engineering includes:
1. The identification and measurement of potentially harmful physical, chemical, and biological agents in the environmental,
2. The transport and fate of these agents,
3. The effects of these agents on people and the environmental, and
4. The design and operation of engineered systems for the maintenance and improvement of thee quality of our environment.
Historically, it was the sanitary and civil engineers who made cities livable for large population. However, the role of environmental engineering has been expanding in the past few decades. Increasingly, environmental engineers are being called upon to expand the focus of their efforts to address the challenges associated with alternative energy, sustainability, climate change, ecological restoration and emerging public