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Research Article
Assessment of Pesticide Residues in Tomatoes from the Marketgardening Area of Mountougoula, Mali
Issue:
Volume 13, Issue 4, August 2025
Pages:
91-96
Received:
11 June 2025
Accepted:
23 June 2025
Published:
15 July 2025
Abstract: In Mali, the excessive and uncontrolled use of pesticides in agriculture poses a threat to public health and the environment. Marketgarden crops, particularly tomatoes, are particularly affected. This work aims to assess the impact of pesticide use in tomato production in the Mountougoula marketgarden area bygeolocating the site's sampling points and determining the concentration of pesticide residues in the tomatoes produced. Thirty (30) tomato samples were randomly collected from different points in the marketgarden area. The residue extraction was carried out using the QuEChERS method (NF EN 15662: 2009), followed by analysis bygas chromatography coupled with an electron capture detector (GC-µECD). A total of 5 different pesticides were detected in the tested tomato samples belonging to classes of insecticides: an organochlorine (Acetamiprid), an organophosphate (Chlorpyrifos) and three pyrethroids (Lambda-Cyhalothrin, Cypermethrin and Deltamethrin). Pesticide residues were detected in 11 (36.66%) samples and 19 (63.33%) samples showed no pesticides quantification. Regarding pesticide residues level, it was found that out of 11 samples contaminated, 8 (26.6%) samples showed pesticide residues higher than MRLs. The absence of quantifiable residues in the majority of samples is encouraging. However, the presence of residues above the tolerated limits in more than a third of the samples highlights the need for better supervision of producers in order to prevent health risks linked to chronic exposure to pesticides.
Abstract: In Mali, the excessive and uncontrolled use of pesticides in agriculture poses a threat to public health and the environment. Marketgarden crops, particularly tomatoes, are particularly affected. This work aims to assess the impact of pesticide use in tomato production in the Mountougoula marketgarden area bygeolocating the site's sampling points a...
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Research Article
Proximate, Mineral and Phytochemical Composition of Dacryode Edulis
Issue:
Volume 13, Issue 4, August 2025
Pages:
97-102
Received:
21 June 2025
Accepted:
3 July 2025
Published:
23 July 2025
Abstract: Background: The differences in time and geographical locations has significant effect on the mineral and phytochemical compositions of plants. Dacryodes Edulis obtained in June at Idu market, Abuja, FCT Nigeria, is a plant wildly grown in Nigeria especially in the tropical and semi tropical region and humid climate. The proximate, mineral, and phytochemical components of Dacryodes Edulis was examined in this study. Methods: The proximate constituent analysis was carried out using the Association of Official Analytical Chemist method. The mineral and phytochemical analyses were carried out using Flame Atomic Adsorption Spectroscopy and standard procedures respectively. Results: The result of proximate analysis showed that Dacryodes Edulis consists of 1.96±0.01% moisture, 4.22±0.27% crude protein, 33.74±0.66% for crude fat, 9.67±0.29% ash and 50.41±0.61% carbohydrate. The mineral constituents showed that Dacryodes Edulis contains 272.0+3.00mg/g Iron, 10072.45+1.00mg/g Potassium, 8.40+0.20mg/g Copper, 4461.95+1.01mg/g Calcium and 756.67+0.90mg/g Magnesium. Conclusion: The results of African pear pericarp showed favorable comparisons in terms of moisture content, crude fat, crude protein, ash content, and carbohydrate content with the African pear seed. The findings indicated that eating enough African pear fruit pericarp could significantly help meet human nutritional needs for healthy growth and sufficient defense against diseases brought on by malnutrition.
Abstract: Background: The differences in time and geographical locations has significant effect on the mineral and phytochemical compositions of plants. Dacryodes Edulis obtained in June at Idu market, Abuja, FCT Nigeria, is a plant wildly grown in Nigeria especially in the tropical and semi tropical region and humid climate. The proximate, mineral, and phyt...
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Research Article
Chemical Impact of Borehole Water Quality on the Operation of Equipment at the Atinkou Thermal Power Plant (Côte d’Ivoire)
Issue:
Volume 13, Issue 4, August 2025
Pages:
103-110
Received:
6 April 2025
Accepted:
9 June 2025
Published:
7 August 2025
Abstract: The quality of borehole water can significantly impact the operation of equipment at the Atinkou Thermal Power Plant in Côte d'Ivoire. Borehole water often contains various minerals and chemicals, such as calcium, magnesium, iron, and manganese. These can lead to scaling and corrosion in the power plant's equipment. Industrial activities can introduce pollutants into groundwater, including nitrates, sulfates, and chlorides. These pollutants can affect the chemical balance of the water, leading to operational challenges. The aim of this study is to determine the chemical quality of the borehole water supplying Atinkou thermal power plant in order to assess its impact on the operation of the plant's equipment. Selective physico-chemical analyses were carried out on Atinkou borehole water in 2019 and 2024. The Chemical Water Quality Index (CWQI) method was used to determine the classes quality of the borehole water, and the Ryznar Index was used to highlight the impact of the water on the plant's equipment. Water chemical quality index (IQCE) value of 0.70 obtained in 2019 indicates that the plant's borehole water was of acceptable quality, requiring moderate treatment for use in the plant. On the other hand, in 2024, the IQCE value of 0.05 indicates that the borehole water is of poor quality and requires full treatment before use. The Ryznar Index of 14.67 in 2019 and 14.83 in 2024 indicate a risk of extreme corrosion of equipment by borehole water in both years.
Abstract: The quality of borehole water can significantly impact the operation of equipment at the Atinkou Thermal Power Plant in Côte d'Ivoire. Borehole water often contains various minerals and chemicals, such as calcium, magnesium, iron, and manganese. These can lead to scaling and corrosion in the power plant's equipment. Industrial activities can introd...
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,
Dembélé Moussa
