Globally, about 25 per cent of diseases are caused by environmental exposures, causing 13 million deaths yearly About 33 per cent of the diseases in children under age five are also caused the

Microbial load in the groundwater and the physico-chemical characteristics of the water samples in and around the dumpsite of Dindigul town, Tamil Nadu, was studied. A microbial analysis of the leachate of the municipal solid waste, the ground water collected from the dumping yard and the ground water collected from a distance of 100 feet away from the dumping yard was also carried out to find out the effect of the municipal solid waste on the ground water quality.

The quality of water is of immense importance because poor quality ground water is not only a limiting factor in crop production but also its constant and indiscriminate use causes secondary salinization. Therefore, a qualitative water quality survey was carried out to diagnose the salinity for sodicity hazards in ground waters in relation to their suitability for irrigation in Faridkot district (Punjab) having two blocks namely Faridkot and Kotkapura.

A study was conducted to estimate the rate of solid and dissolved mass denudation from six prominent landuse systems of Bhetagad micro watershed, Gomti basin of Indian Central Himalaya. An investigation was also conducted to assess the seasonal variation in water quality parameters influenced by rainwater in the four sub-catchments of Gomti basin.

Elevated arsenic in groundwater is the greatest environmental problem in Bangladesh. Spatial variability of arsenic in groundwater has been examined by semivariogram analysis that revealed high degree of small-scale spatial variability in alluvial aquifers. Small-scale variability of arsenic concentrations, indicated by high "nugget' values in semivariograms, is associated with heterogeneity in local-scale geology and geochemical processes. In unsampled locations, arsenic concentrations have been predicted using both deterministic and stochastic prediction methods.