Investigation of Pesticides Effect on Groundwater Quality of Shemiranat Villages

Targets: Pollution of water resources by pesticides is one of the environmental problems because application of such these pesticides is increased by development of agriculture and variety of plant pests. As there are too many agricultural lands, farms and orchards in Shemiranat which are sprayed by poisons periodically and because drinking water of people is provided by groundwaters, there is the probability of leaking of poisons to water wells. So pesticides can be a serious threat for drinking water resources of the region. Study

This research is a descriptive study based on sectional analysis method. In this research 12 samples of water are collected from 3 drinking groundwater preparation stations in Shemiranat during 4 seasons of 2009-2010. The samples are analyzed by GC/MS mechanism and by chromatography gas method to measure the rest of organophosphate pesticides and by GC/ECD mechanism and by chromatography gas method to measure the rest of chloro-organic pesticides.

According to analysis of phosphate pesticides in three water wells of Hanzak, Anbaj and Kand-Sofla, no phosphorus organic pesticide was seen in samples of water for all seasons, but according to analysis of chloro-organic pesticides in these three water wells, some amounts of pesticides were found in condensed water of all three wells especially in the samples of June. It should be mentioned that the amount of pesticides in samples of water are less than authorizes level according to 1053 National Standard principle. The pesticide in condensed samples of water indicates leakage of poisons into the drinking water resources of the region and is an alert of more pollution in future.