Determination of some organochlorine and organophosphorus pesticide residues in water of Gargar River
Message:
Abstract:
Background And Objective
Today, Chlorinated and Organophosphorous pesticide residues are considered as important environmental pollutants especially in surface water resources. Gargar River is one of the important tributaries of Karoon River. The main use of this river is to supply the drinking water for nearby cities. Therefore, the aim of this study was to determin Organochlorine and Organophosphorus pesticide residues in water of the Gargar River in 2012.
Method
After field visits and determining five sampling stations during the spring and summer of 2012, the samples were taken and after carrying out laboratory preparation, identification and determination of the concentration of pesticides in the samples were performed using HPTLC.
Findings: Results showed that the mean concentrations (µg/L) of Atrazin, Alachlor and Trinoxol pesticides in water of Gargar River in the spring were 1.04±0.02, 1.06±0.03 and 1.12±0.04, respectively. Also the mean concentrations of these pesticides (µg/L) in the winter were 3.04±1.45, 15.27±4.51 and 12.12±3.62, respectively. Comparison of the mean concentrations of pesticides with WHO permissible limits showed that the mean concentrations are significantly lower than the permissible limits.
Conclusion
There are no public health risks for pesticides residues in Gargar River water samples in this time. However, it should be noted that because of indiscriminate use of agricultural inputs, such as chemical pesticides by farmers, the problem of excessive accumulation of toxins in aquatic ecosystems and their consequences will be faced in the near future.
Language:
Persian
Published:
Journal of Environmental Sciences and Technology, Volume:19 Issue: 1, 2017
Pages:
223 to 236
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