Deema Okdeh *(1) , Ibrahim Sakr(2) and Tareq ARRAJ(1)
(1). Department of Environmental Chemistry, Higher Institute for Environmental Research, Tishreen University, Lattakia, Syria
(2). Department of Plant Protection, Faculty of Agriculture, Tishreen University, Lattakia, Syria.
(*Corresponding author: Deema Okdeh. E-Mail: okdehdeema@gmail.com).
Received:10/12/2022 Accepted: 14/03/2023
Abstract:
The objective of the research was to determine the concentration of the synthetic organophosphate Dichlorvos pesticide (DDVP) in the soils of the surrounding environment of Al-Sin Lake during the year 2020/2021. Soil samples were taken from several sites surrounding Al-Sin Lake. The study lasted for seven months. The soil texture and organic matter were determined seasonally, and the pH-moisture was measured. The pesticide analysis was measured using high-performance liquid chromatography (HPLC). The results showed the presence of DDVP residues in the studied soil samples with average concentrations ranging between (4-121) mg.kg-1. Therefore, soil were contaminated by DDVP. The highest concentrations were in the north-east and west of the lake, this was due to the increase of greenhouses number, and the intensive use of DDVP in these areas.
Keywords: Organophosphate pesticides, Dichlorvos, Al Sin spring basin, soil, HPLC.
Full paper in Arabic: pdf