Determining the Level of Commonly Used Pesticides in water at Different Ecosystems in Sudan - Case study: (Kassala- al-Gadarif State)

The Pesticide residues in the environment pose a risk to public health and environmental components, especially water, particularly in agricultural areas that rely on the intensive use of pesticides. Analytical chemistry has played a significant role in Using analytical methods and laboratory equipment to estimate these residues. In This study aims to evaluate the levels of pesticide residues in some agricultural areas at the case study by collecting (10) water samples. The study relied on the use of gas chromatography and the presentation of results and statistical analysis using the statistical program (SPSS). as the results of the analyses of water samples showed that terbufos, parathion, and profenofos topped the list with average concentrations of (0.462), (0.333), and (0.289) mg/kg, respectively. In water samples, the study showed that terbufos, parathion, and profenofos were the most concentrated (0.357), (0.188), (0.187) mg/L, respectively. Through the results of the (T) test for the samples, the pesticide concentrations showed a significant difference (P<0.05) in their mean with the specified value (0.001), where a strong correlation was shown between the use of these pesticides and their concentrations in the samples.