Evaluation of Diazinon Groundwater Resources in the Lavasanat area Based on SPME (Case Study: Large and Small Lavasanat)

Organophosphorus pesticides are widely used for agricultural purposes, so it is make the Diazinon one of environmental issues. Given the importance of water and the effects that pollution can have on human health and natural ecosystems, water quality monitoring is very important. The aim of this study was to determine the contamination entered in the area of large and small Lavasanat‘s groundwater.
In the study area, were randomly selected 6 villages and six wells in each village (upstream and downstream) were sampled. After transferring the samples to the laboratory, using micro solid-phase extraction method, diazinon concentrations were measured.
Results showed that Small Lavasanat is more polluted than Large Lavasanat. Niknam village and Hanzak with average concentrations of diazinon 13.792 and 13.328 micrograms per liter, respectively, were the most polluted underground water resources in the study area, respectively.
Compare Diazinon estimated average by world standards, showed the amount of contamination of drinking water in the rural areas according to the standard, were higher than the standard limit and the groundwater does not match. The planning related to water resources management as well as monitoring the health of watersheds and change management in the study area should be prioritized.