当前世界环境

Water is essential component of earth planet. The chief sources of water in the earth is surface and ground waster. Owing to anthropogenic activities natural waster sources are continue polluted. In this context, we have undertaken to the detection of concentration and presence of some selected heavy metals such as Hg, Zn, Al and Fe in different surface water, especially preferred open ponds in premonsoon season (March 2009 to April 2009). The measurement was done by ICPA method. The results are expressed in mg/L and values are compared with the standard value IS: 10500:1993, We have selected nine water sampling station in study are named from KDS-1 tO KDS – 9. The max concentration of Hg, Al and Fe were reported as 0.007, 11.89 and 29.27 mg/L at KDS – 9, KDS – 3 respectively in March – 2009 and May 2009. These values were exceed the permissible limit. Zn was detected below the permissible requirement at all water samples.