Detrmination of Organophosphorus Pesticides (Diazinon and Chlorpyrifos) in Water Resources in Barzok, Kashan

Rouhollah Dehghani; Mansoreh Shayeghi; Hadi Eslami; S. Gholamabbas Moosavi; Davar Khah Rabani; Davod Hossein Shahi

Zahedan Journal of Research in Medical Sciences

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Detrmination of Organophosphorus Pesticides (Diazinon and Chlorpyrifos) in Water Resources in Barzok, Kashan

Author(s):

Rouhollah Dehghani¹,

Mansoreh Shayeghi²,

Hadi Eslami^1,*,

S. Gholamabbas Moosavi³,

Davar Khah Rabani¹,

Davod Hossein Shahi⁴

1Department of Environment Health, Kashan University of Medical Sciences, Kashan, Iran

2Department of Entomology, Tehran University of Medical Sciences, Tehran, Iran

3Department of General Health, Kashan University of Medical Sciences, Kashan, Iran

4Department of Environment Health, Yazd University of Medical Sciences, Yazd, Iran

Zahedan Journal of Research in Medical Sciences:Vol. 14, issue 10; e93196

Published online:Oct 24, 2012

Article type:Research Article

Received:Oct 23, 2011

Accepted:Nov 23, 2011

How to Cite:Rouhollah DehghaniMansoreh ShayeghiHadi EslamiS. Gholamabbas MoosaviDavar Khah RabaniDavod Hossein Shahiet al.Detrmination of Organophosphorus Pesticides (Diazinon and Chlorpyrifos) in Water Resources in Barzok, Kashan.Zahedan J Res Med Sci.14(10):e93196.

Abstract

Background : The growing population and increasing needs to agricultural products increased use of pesticides resulting in contamination of the environment, including water. The purpose of this study was to determination of pesticide residues in agricultural water resources in Barzok city of Kashan in 2011.
Materials and Methods : This study as a descriptive and cross-sectional study that was conducted at spring season. That totals of 135 samples of the agricultural water resources of Barzok were collected randomly and mixtures from different stations. After extraction and preparation of samples, the pesticide residues were determined by using the HPTLC (High Performance Thin Layer Chromatography) devices and CATS4 software. Finally, obtained data were analyzed by using ANOVA statistical methods.
Results : The results of this study showed that maximum amount of diazinon and chlorpyrifos has been 22.43 and 11.79 ppm respectively, and the pesticide residues have declined gradually overtime of (p<0.001).Furthermore, after a month 95.9% of Chlorpyrifos and 88.8% of diazinon is degraded.
Conclusion : Accordingly, the remaining of diazinon and chlorpyrifos after a month of spraying was higher than determined limited standards. Because Chlorpyrifos is broken down rapidly more than diazinon, it is recommended that besides educating farmers on the proper use of pesticides, unnecessary contact with the water resources of this region must stop at least one month after spraying.

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