Trends of organochlorine pesticides in drinking water supplies.

The effectiveness of the treatment process for the removal of pesticides in the final water supplies in Delhi has been evaluated. Samples were collected during 2000-2005 from five water treatment plants (WTPs). Analysis was carried out to identify pesticides, which are more commonly encountered in treated drinking water.

Source apportionment of groundwater pollution around landfill site in Nagpur, India.

The present work attempts statistical analysis of groundwater quality near a Landfill site in Nagpur, India. The objective of the present work is to figure out the impact of different factors on the quality of groundwater in the study area. Statistical analysis of the data has been attempted by applying Factor Analysis concept.

Development of an overall index of pollution for surface water based on a general classification scheme in Indian context.

Various National and International Agencies involved in water quality assessment and pollution control have defined water quality criteria for different uses of water considering different indicator parameters. Classification schemes for water quality criteria/standards developed by these agencies differ in addition to terminologies used such as Action level, Guide level etc. in defining the concentration values in these classes.