The fluoride contamination study has been carried out in ground waters of Khanapur, Bailhongal and Saundatti taluks of Malaprabha sub basin, Belgaum district, Karnataka. 21 samples were collected during the pre-monsoon and post-monsoon season of 1999.

Fly ash is an industrial waste generated from thermal power plants. A large part of fly ash produced is disposed of with very high environmental risk.

Outflow from agricultural fields carries diffuse pollutants like nutrients, pesticides, herbicides etc and transports the pollutants into the nearby streams. It is a matter of serious concern for water managers and environmental researchers.

Energy balance measurements were carried out in a suburban vegetated areas of southern part of Delhi. These measurements were made on several days during winter and summer of 1998 and 1999 respectively.

The study was conducted to assess the physico-chemical and bacteriological quality of stored rain water in the ferrocement tanks of Alappuzha District, Kerala. Representative water samples were collected on random basis from ten stations with rain water harvesting facility during the periods January 2006 and April 2006.

Enriched compost produced with use of municipal solid wastes (MSW) recorded narrow C:N ratio at the end of decomposition period than municipal solid wastes decomposed without enrichers. To enhance the decomposition rate, quality of municipal solid wastes and enrichers/amendments are found very significant for production of compost.

Water being a good solvent, is prone to physico chemical and microbial contamination. Municipal sewage, both treated and untreated is often released into the receiving water bodies, which influence water quality.

Aquatic macroinvertebrate diversity in the Bhagirathi river was monitored for the period of twelve months (September 2004 to August 2005) for assessing the impact of Asia's highest dam, Tehri Dam. Comparative data on diversity of macroinvertebrates revealed that the number of taxa in the downstream stretch, especially close to the dam was significantly reduced.

Weekly variations in free and total chlorine residuals and their impact on microbial concentrations were monitored for the IIT Kharagpur water supply to determine possible correlations between heterotrophic bacterial density, total and faecal coliform density, and total and free chlorine residuals.

The present study was undertaken to know the effect of concentration of lead (Pb) and different organic materials on the maize yield, concentrations of lead on maize plants and diethylene triamine penta-acetic acid (DTPA) extractable lead (Pb) on the post harvested soils.