Undergraduate and graduate students of civil engineering, architecture, environmental engineering, and environmental science will enjoy reading the book without knowledge or experience in computer science. Especially, several case study works were introduced focusing urban environmental problems in Mega cities in Asian countries. For example, Tokyo, Taipei, Bangkok are monitoring field for environmental research. Regeneration of Topics include state-of-the-art of environmental monitoring and simulation in urban area: hazardous substances, atmospheric movement, coastal hydrology, biological tests, and wastewater.