Main Article Content
Water is the vital source for life and if it is contaminated by heavy metals can pose perilous repercussions on living beings. Therefore, this review is framed in which the concentrations of different heavy metals were quantitatively analyzed in different water bodies by different authors. The main elements under their observations were sodium, potassium, arsenic, cadmium, chromium, nickel, mercury, zinc, iron, magnesium, copper, manganese, cobalt and lead. Some studies revealed the detection of sodium and potassium through flame photometer while the concentrations of other aforementioned metals were detected by using Atomic Absorption Spectrometer (AAS). And their levels were compared with some of the most reputable environmental agencies of the world like WHO (2008), EUC (2001) and EPA (2007). The researchers also analyzed the physical parameters for water quantitatively like electrical conductivity, temperature, pH, TDS, hardness, turbidity, alkalinity and salinity with the help of Digital Electronic Kits. Most of the water bodies present in the vicinity of industrial and municipal wastes were found highly polluted whereas the water bodies farther from these sources were aesthetically good in quality. In this study, the impacts of heavy elements on life have also been elaborated by quoting different research works.
Keywords: Human health; Heavy metals; Physico-chemical parameters; Pollution