Évaluation de la qualité des cours d’eau de la ville de Taza utilisés dans l’irrigation des cultures maraîchères (Maroc).

Abbou, Mohamed Ben; Fadil, Fatima; Haji, Mounia El

doi:10.4314/jab.v77i1.7

Cited by 7 publications

(7 citation statements)

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“…Several studies have reported this form of contamination. For Koffi et al (2011) in Côte d'Ivoire, Abbou et al (2014) in Morocco and Holvoet et al (2014b) in Belgium, irrigation water from urban vegetable crops was the main source of microbial contamination of production. Coagulase positive Staphylococcus aureus has been reported in work in lettuce in Brazil (Cé sar et al, 2015).…”

Section: Discussionmentioning

confidence: 94%

Assessment of the Risk of Microbial Contamination of an Urban Crop in the City of Daloa (Côte d'Ivoire): Case of Lettuce (Lactuca sativa L.)

Kouassi¹,

Kouassi²,

Yao³

et al. 2019

JFR

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The growing population of the city of Daloa, together with its growing urbanization, has a diversified need for food resources. Urban and periurban production of lettuce is a food resource for its people. This study was designed to assess the risk of microbial contamination. For the conduct of the study, first a survey was carried out on different sites of urban production to know the technical process of production. Then, mature lettuce, ready for sale and then consumed from a site, was subjected to microbiological characterization according to the standards in force. Microbiological analyzes revealed a high contamination. For mesophilic aerobic germs, the charges in CFU/g ranged between 1.7x10 7 and 6.7x10 7 . The loads in CFU/g for yeasts and molds ranged from 3.4x10 5 to 9.3x10 5 . As for fecal coliforms and enterobacteria, their loads ranged between 1.2x10 5 to 2.8x10 5 CFU/g for the first and 7.2x10 5 to 10 6 CFU/g for the second. These samples were contaminated with both Escherichia coli, Staphylococcus aureus c + and Salmonella sp. The loads in E. coli and S. aureus c+ ranged between 9.4x10 4 and 1.8x10 5 for the first and 4x10 3 to 1.1x10 4 CFU/g for the second. Salmonella sp. was found with loads ranging from 6.1x10 4 to 8.2x10 4 CFU/g. Empirical production process would increase the risk of microbial contamination. It is necessary to produce healthy lettuce for Daloa's consumers.

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Section: Discussionmentioning

confidence: 94%

Assessment of the Risk of Microbial Contamination of an Urban Crop in the City of Daloa (Côte d'Ivoire): Case of Lettuce (Lactuca sativa L.)

Kouassi¹,

Kouassi²,

Yao³

et al. 2019

JFR

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“…The selection of the chosen sites for this study is firmly grounded in a comprehensive foundation of previous research, particularly the extensive work conducted by Abbou et al (2014b). Moreover, a series of thorough field trips were undertaken to conduct a meticulous diagnosis of the study area.…”

Section: Sampling Sitesmentioning

confidence: 99%

“…This drop in dissolved O2 concentration can be explained by the proliferation of microorganisms following the high biodegradable organic load, especially at point O4 characterized by a high BOD 5 (Fig. 8) located downstream of the uncontrolled public landfill (the Julien landfill) (Abbou et al 2014a). The increase in dissolved oxygen concentration during the winter and spring periods is due to the decrease in temperature because the lower the temperature more biological activity decreases are O2 consumption also decreases (Edberg et al 2000).…”

Section: Parameters Measured In Situmentioning

confidence: 99%

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Surface Water Quality in Taza, Morocco: A Physicochemical and Bacteriological Assessment with the SEQ-Water System

Mahmoud,

Mehdaoui,

El madani

et al. 2023

Ecol. Eng. Environ. Technol.

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The city of Taza, situated in Morocco, boasts a significant ecological heritage. However, a concerning practice of discharging untreated wastewater into the nearby Oueds has raised apprehensions about potential threats to public well-being. This research endeavors to discern the locations most adversely affected by pollution and subsequently assess their environmental condition. By conducting an extensive year-long analysis encompassing physicochemical and bacteriological aspects, we gathered a comprehensive dataset for appraising the surface water quality, utilizing the SEQ-WATER system as the evaluation framework. Four distinct sites emerged as particularly impacted: upstream of Oueds Jaouna and Taza, downstream of Oued Larbâa and adjacent to the "Julien" public dump, and at the confluence of Oueds Rhouireg and Dfali. Employing the GIS-SEQ integration, we meticulously gauged the physicochemical and bacteriological attributes of these sites. Our assessment unveiled readings that surpassed the established Moroccan benchmarks for surface water quality. Notably, the water exhibited pronounced turbidity and elevated levels of suspended particles, including nitrites and sulfates. Additionally, a notable organic load and microbial contamination involving fecal coliforms (E. coli) and intestinal enterococci were observed. These findings underscore the critical necessity for the implementation of efficient wastewater treatment measures within Taza, which would substantially safeguard both the populace and the surrounding ecosystem. It is imperative to conduct further in-depth investigations to validate these outcomes and devise comprehensive strategies aimed at mitigating the potential hazards linked with the compromised state of surface water.

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“…The demographic structure which is progressively increasing on the one hand and the evolution of the gross domestic product per capita has generated a massive production of solid waste (El Hammoudani, 2019, Abbou, 2020, Fernine, 2022. In this context, the production of leachate, which is one of the main consequences, remains one of the threats to the environment (Coffin, 2022), especially to water resources (El Hammoudani, 2021, Benaissa, 2022, Bouhout, 2022) (soil pollution, contamination of groundwater and surface water) (Abbou, 2014, Abbou et al, 2020, Al Raisi, 2022, which could have negative health effects on the population (Fekri, 2012.…”

Section: Introductionmentioning

confidence: 99%

Impact of Waste on the Quality of Water Resources: Case Study of Taza City, Morocco

Abouabdallah,

El Hammoudani,

Dimane

et al. 2023

Ecol. Eng. Environ. Technol.

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The ultimate purpose behind this study is to assess the quality of water surface of Oued Inaouen and its tributaries and some underground stations before and after discharge of the city of Taza. It addresses the leachate of the unauthorized landfill of Taza which is a source of nuisance that adds to the many problems of contamination of the surrounding environment if they are not treated before discharge. This survey explains how the landfill can affect the quality of water resources near the city of Taza, represented by the main tributaries of the watershed of Oued Inaouen by determining the main parameters indicators of pollution, and to study the possibilities of contamination of groundwater and surface water by infiltration or flow of leachate. Physico-chemical results show high concentrations of organic matter, the BOD 5 /COD ratio indicating a biodegradable organic fraction. As far as mineral pollution is concerned, high contents of NH 4 + , NO 3 -, total phosphorus and Cl -, which explains the high conductivity values. Bacteriological analyses show significant quantities of coliforms and fecal streptococci. For the evaluation of the pollution of groundwater and surface water, the results obtained are translated by the presence of a significant contamination that differs from one point to another. To evaluate the pollution of groundwater and water surface, the results obtained are translated by the presence of a significant contamination that differs from one point to another.

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Évaluation de la qualité des cours d’eau de la ville de Taza utilisés dans l’irrigation des cultures maraîchères (Maroc).

Cited by 7 publications

References 0 publications

Assessment of the Risk of Microbial Contamination of an Urban Crop in the City of Daloa (Côte d'Ivoire): Case of Lettuce (Lactuca sativa L.)

Assessment of the Risk of Microbial Contamination of an Urban Crop in the City of Daloa (Côte d'Ivoire): Case of Lettuce (Lactuca sativa L.)

Surface Water Quality in Taza, Morocco: A Physicochemical and Bacteriological Assessment with the SEQ-Water System

Impact of Waste on the Quality of Water Resources: Case Study of Taza City, Morocco

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Évaluation de la qualité des cours d’eau de la ville de Taza utilisés dans l’irrigation des cultures maraîchères (Maroc).

Cited by 7 publications

References 0 publications

Assessment of the Risk of Microbial Contamination of an Urban Crop in the City of Daloa (Côte d&#39;Ivoire): Case of Lettuce (Lactuca sativa L.)

Assessment of the Risk of Microbial Contamination of an Urban Crop in the City of Daloa (Côte d&#39;Ivoire): Case of Lettuce (Lactuca sativa L.)

Surface Water Quality in Taza, Morocco: A Physicochemical and Bacteriological Assessment with the SEQ-Water System

Impact of Waste on the Quality of Water Resources: Case Study of Taza City, Morocco

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Assessment of the Risk of Microbial Contamination of an Urban Crop in the City of Daloa (Côte d'Ivoire): Case of Lettuce (Lactuca sativa L.)

Assessment of the Risk of Microbial Contamination of an Urban Crop in the City of Daloa (Côte d'Ivoire): Case of Lettuce (Lactuca sativa L.)