Perchlorate is an environmental contaminant associated with the manufacture or use of aerospace fuels, explosives, and hypochlorite water disinfection products. Perchlorate inhibits iodide transport into the thyroid gland, which may reduce the synthesis of thyroid hormones critical to normal neurologic development.

Physicochemical characteristics of groundwater and municipal water in Amalner town by taking water samples from five different stations. The study was carried out by collecting four groundwater samples (Two open well, two bore well) and one municipal water sample during November 2007-February 2008. The results were compared with standards prescribed by WHO and ISI 10500-91.

River Krishni is highly polluted. The investigation was “to study the effect of pollution in River Krishni on the quality of
groundwater abstracted through shallow and deep hand pumps placed in the close vicinity of River Krishni”. One such
affected Village Chanedna Maal was selected for the study. Water samples were analyzed in terms of physical, chemical and bacteriological water quality parameters.

Physico-chemical analysis of ground water of Sambhar lake city and its adjoining area block, was performed to have a clear picture of water quality so that remedial measure could be worked for fluoride higher than 6 mg/lit may cause osteoporsis and fluorosis. High nitrate is alarming as it indicates possibility of seepage from sewage.

Physico-chemical analysis of ground water of Sambhar lake city and its adjoining area block, was performed to have a clear picture of water quality so that remedial measure could be worked for fluoride higher than 6 mg/lit may cause osteoporsis and fluorosis. High nitrate is alarming as it indicates possibility of seepage from sewage.