Pesticide residues in tomato crops in Western Algeria

GAOUAR, Zakaria Lotfi; Chefirat, Bilel; Saadi, Rachida; Djelad, S.; Rezk-kallah, Haciba

doi:10.1080/19393210.2021.1953156

Cited by 15 publications

(8 citation statements)

References 14 publications

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“…Our findings present higher number of pesticide residues detected than reports from other studies in Africa. 45 - 49 For example, studies in Tanzania, Kenya and Algeria found 7 or less active ingredients in produce samples. 45 , 46 , 48 Occurrence of multiple pesticides residues could be as a result of plant uptake of persistent pesticides 50 and spray drift.…”

Section: Discussionmentioning

confidence: 99%

“… 45 - 49 For example, studies in Tanzania, Kenya and Algeria found 7 or less active ingredients in produce samples. 45 , 46 , 48 Occurrence of multiple pesticides residues could be as a result of plant uptake of persistent pesticides 50 and spray drift. 51 , 52 Multiple pesticide residues might also be as a result of poor agricultural practices especially the use of cocktail of pesticides.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…Similar studies carried out in Ghana, Malawi, Tanzania, Botswana, Algeria and Uganda indicate that organophosphates, carbamates, dithiocarbamates, pyrethroids and neonicotinoids, all insecticides, are the most common pesticide residues detected in fruits and vegetables in Africa. 30,[45][46][47][48][49]55,56 Two or more -up to 19 pesticide active ingredients were detected in 95.6% of the fruit and vegetable samples, indicating their mixed use on the farm. Although in relatively lower percentages, studies from Botswana, Algeria and Kuwait revealed 33.4%, 47% and 40% fruit and vegetable samples with multiple pesticides residues, 48,57,58 findings that collaborate with those from our study.…”

Section: Discussionmentioning

confidence: 99%

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Pesticide Residues in Fresh Fruit and Vegetables from Farm to Fork in the Kampala Metropolitan Area, Uganda

Ssemugabo

Bradman

Ssempebwa

et al. 2022

Environ�Health�Insights

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This study assessed concentrations of pesticide residues in fruits and vegetables from farm-to-fork in Kampala Metropolitan Area, Uganda. A total of 160 samples of fruit and vegetables collected from farms, markets, streets, restaurants and homes were analysed using liquid chromatography–tandem mass spectrometry; and Gas Chromatograph–Mass Spectrometer for dithiocarbamates. Multiple pesticide residues were detected in majority of the samples (95.6%). The proportions of the most frequently detected pesticides residue classes were organophosphates (91.3%), carbamates (67.5%), pyrethroids (60.0%) dithiocarbamates (48.1%) and neonicotinoids (42.5%). Among organophosphates, propotamophos, acephate, fonofos, monocrotophos and dichlorvos were the most detected active ingredients; aminocarb, methomyl and pirimicarb were the commonly detected carbamates; while imidacloprid, a neonicotinoid and lambda-cyhalothrin, pyrethroid were also highly detected. Twenty-seven pesticide were tested at all stages, of which the concentrations either decreased or increased along the chain. Multiple pesticide residues occurred in commonly consumed fruit and vegetables with decreasing or increasing concentrations from farm-to-fork.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Pesticide Residues in Fresh Fruit and Vegetables from Farm to Fork in the Kampala Metropolitan Area, Uganda

Ssemugabo

Bradman

Ssempebwa

et al. 2022

Environ�Health�Insights

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“…For example, Cui et al showed that DIF was frequently detected in a total of 3406 fruit and vegetable samples, especially in cowpea (60.30%, maximum 343.39 µg/kg), grape (68.70%, maximum 803.30 µg/kg) and mandarin (64.34%, maximum 192.70 µg/kg) [2]. DIF was also detected in 43% of tomato crops (maximum 64.3 µg/kg) in Western Algeria [3]. DIF was not only detected in agriculture productions, but also in the water bodies due to its high persistence [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Sub-Chronic Difenoconazole Exposure Induced Gut Microbiota Dysbiosis in Mice

Zhaorigetu

Wang

et al. 2022

Toxics

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Difenoconazole (DIF) is a widely separated triazole fungicide in many countries. The excessive usage of DIF increases the high volume of residues in agriculture production and water bodies. Some previous studies demonstrated the toxic effects of DIF on non-target animals, however, there were still some gaps in the knowledge of the potential hazards of DIF to mammals and human health. Herein, 7-week-old male mice were exposed to 30 and 100 mg/kg/day DIF for 14 and 56 days. We observed that 56 days of DIF exposure decreased the colonic mucus expression of alcin blue-periodic acid-schiff (AB-PAS) stain and the immunochemical stain of muc2 protein. The transcript levels of mucin protein (muc1, muc2 and muc3) decreased significantly in the gut of mice followed 56 days of 100 mg/kg/day DIF exposure. In addition, the gut microbiota composition was also affected after 14 or 56 days of DIF exposure. Although the mucus expression after 14 days of DIF exposure only decreased slightly, the gut microbiota composition compared with the control group was changed significantly. Moreover, the DIF-30 and DIF-100 caused respectively different changes on the gut microbiota. The relative abundance of Bacteroidetes decreased significantly after 14 days and 56 days of DIF exposure. After 14 days of DIF exposure, there were 35 and 18 differential genera in the DIF-30 and DIF-100 group, respectively. There were 25 and 32 differential genera in the DIF-30 and DIF-100 group after 56 days of exposure, respectively. Meanwhile, the alpha diversity indexes, including observed species, Shannon, Simpson, Chao1 and ACE, in gut microbiota decreased significantly after 56 days of DIF exposure. Interestingly, the relative abundance of Akkermansia increased significantly after 56 days of 100 mg/kg/d DIF exposure. Although Akkermansia was considered as one probiotic, the phenomenon of dramatic Akkermansia increase with the decrease in gut microbiota diversity needed further discussion. These results provided some new insights on how DIF exposure impacts the mucus barrier and induces gut microbiota dysbiosis.

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