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This book presents the state-of-the-art in the area of water remediation. It covers topics such as decentralized ecological wastewater treatment, applications of remote sensing and geographic information systems (GIS) in water quality monitoring and remediation, water remediation through nanotechnology, and processes used in water purification.

Due to exponential increase in the number of vehicles registered, presence of thermal power plants and industrial activities in Delhi, the pollution levels are higher making it very clear that the pollution levels are contributed by all these sources. Hence, a study of monitoring of ambient air quality at 4 sites of Delhi city due to above-mentioned sources was carried out in order to assess the impact of various sources on pollution levels in the month of October and November 2000. Pollutants namely SO2, NOx and SPM (FSP, RSP and TSP) were monitored at 4 different locations, namely, Okhla...