Étude de la qualité des eaux usées des deux retenues du bassin du Gourou au carrefour de l’Indénié à Abidjan en 2012.

Julien, Coulibaly-Kalpy; Koffi, Kouadio Stéphane; Yéo, Alain; Yah, Kouadio Léonard; Bamba, A.; Coulibaly, Emmanuel; Kacou-N’douba, Adèle; Dosso, Mireille

doi:10.4314/jab.v113i1.3

Cited by 5 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fecal coliforms and intestinal enterococci showed high levels of high faecal contamination of these waters with values of 7x10 7 cfu/100ml and 1x10 7 cfu/100ml respectively. This characteristic of wastewater had also been made by other authors in Africa [3,26]. Indeed, the contaminations of these reservoirs were superposable to those obtained in urban wastewater as observed by [27,28] in Morocco.…”

Section: Discussionsupporting

confidence: 79%

“…With industrial development, economic growth, rapid population growth and high density of urban areas, sewage discharges have become enormous. In the absence of treatment, this wastewater constitutes a growing danger to human health and the natural environment because of its toxic chemical loads and pathogenic microorganisms [3]. They therefore constitute permanent threats to both human and animal health [4].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Assessment of Bacterial Load in Urban Wastewater in Drainage Canals in the Cities of Abidjan, Bouake and Yamousoukro, Côte d'Ivoire

Sidik¹,

Bagre²,

Carole³

et al. 2023

SAJRM

View full text Add to dashboard Cite

The microbiological quality of urban wastewater presents important environmental, health and political challenges. The lack of a water treatment system leads to a lack of knowledge about the variability of the microbiological quality of wastewater in the major cities of Côte d'Ivoire. Aims: The purpose of this study is to assess the level of microbiological pollution of urban wastewater in the drainage channels of the different agglomerations. Methodology: Indicators of environmental pollution (mesophilic aerobic germs) and faecal contamination (fecal coliforms and intestinal enterococci) were analyzed at 14 upstream and downstream sites in cities of Abidjan, Bouaké, Yamoussoukro during rainy periods and in the dry season. Results: Our results show an important pollution translated by the abundance of bacterial indicators of which the aerobic mesophilic germs can reach average loads going from 3x107 cfu/100 mL to 7x109 cfu/100 mL and the witnesses of fecal contaminations can reach average loads going from 3x105 cfu/100 mL to 7x107 cfu/100 mL for the fecal coliforms and from 6x105 cfu/100mL to 1x107 cfu/100mL for the intestinal enterococci These average bacterial loads fluctuate according to the configuration of the sewerage systems and the hydrological conditions. In the rainy season, a significant dilution of certain indicators, precisely mesophilic aerobic germs and intestinal enterococcus, can be observed. The number of microorganisms encountered exceeds the values indicated by the WHO guidelines (WHO, 2017) and the standards in force for wastewater discharge. Conclusion: Creation of strong treatment systems for wastewater to manage them before any discharge in waterbodies have to be a priority. This could reduce the risks of pollution from an environmental and health point of view. The microorganisms encountered can cause mild or serious infections.

show abstract

Section: Discussionsupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Assessment of Bacterial Load in Urban Wastewater in Drainage Canals in the Cities of Abidjan, Bouake and Yamousoukro, Côte d'Ivoire

Sidik¹,

Bagre²,

Carole³

et al. 2023

SAJRM

View full text Add to dashboard Cite

show abstract

“…It should be noted that the loads of these indicators are higher than the values set (10 3 CFU/ 100 ml) by WHO guidelines for the safe discharge of wastewater into the environment [16]. A similar finding has been made by other authors in Africa by (Aboulouafa; El Addouli; Adjahouinou; El Ouali; Coulibaly) [15,17,18,19,20].…”

Section: Discussionsupporting

confidence: 66%

“…Total coliform loads ranged from 1.47±4.33.10 6 to 3.65±7.88.10 6 CFU/100ml of irrigation water. In Côte d'Ivoire Coulibaly-Kalpy et al, reported results slightly higher than these [15]. The values obtained by these authors range from 2.19.10 7 CFU/100ml to 2.74.10 7 CFU/100ml.…”

Section: Discussionmentioning

confidence: 76%

Impact of Irrigation Water on the Bacteriological Quality of Lettuce (Lactuca sativa) in the Market Garden Zone of Niamey, Identification of Enterobacteria

Alio,

Abdel-Kader,

Mahamadou

et al. 2024

AJOB

View full text Add to dashboard Cite

The urban community of Niamey is characterized by a prodigious development of urban and peri-urban agriculture. Lettuce (Lactuca sativa) is one of the main crops grown in these urban and peri-urban areas. The aim of this study is to assess the impact of irrigation water on the bacteriological quality of lettuce produced in the market gardening zone of the Niamey city. Three (3) market garden sites were studied (Harobanda (site 1), Gamkallé (site 2) and Gounti yéna (site 3). Eighteen (18) lettuce samples and twenty-nine (29) irrigation water samples were taken from the market garden sites and subjected to microbiological analysis using conventional methods appropriate to each indicator. Thus, five (5) indicators of contamiantion were searched, Total Mesophilic Aerobic Flora (TMAF), total coliforms (TC), faecal coliforms (FC), enterobacteria (Ent), Faecal streptococci (FS), Escherichia coli (E. coli) and Clostridium perfringens (CP). The results showed that irrigation water samples from site 1 were highly contaminated with Total Coliforms (TC) and Faecal Coliforms (FC) (3.65±7.88.106 and 1.41±3.04. 106 CFU/100ml respectively), those from site 2 by Faecal Streptococci (FS) (1.19±2.03.105 CFU/100ml) and from site 3 by Enterobacteria (Ent) (1.61±2.37.108 CFU/100ml) and Escherichia coli (8.22±11.86.105 CFU/100ml). Thus, lettuce samples from site 1 are more contaminated with TC (5.32±8.32.106 CFU/g) and Ent (3.10±0.95.107 CFU/g). Faecal coliforms (1.35±1.13.106 CFU/g) and faecal streptococci (5.30±8.21.105 CFU/g) predominate on the site2 and finally site3 is more contaminated with E. coli (2.43±0.38.105 CFU/g). However, enterobacteria species such as Citrobacter freundii, Enterobacter cloacae, Enterobacter sakazakii, Escherichia coli1, Klebsiella pneumoniae ssp ozaenae, Pantoea spp 1, Proteus mirabilis, Raoultella terrigena, Salmonella enterica arizonae, Salmonella spp, Serratia liquefaciens, Serratia marcescens and Serratia odorifera1 were identified in irrigation water samples and lettuce at these sites. In fact, the quality of the irrigation water is not suitable for irrigation, and strongly influences the contamination of the lettuce produced by the bacteria. Consumption of this lettuce without the minimum of precautions could prove dangerous to consumers.

show abstract

“…Discharges of untreated wastewater to the environment can be a source of infection by pathogenic microorganisms from a variety of sources [1]. According to the World Health Organization, each year nearly 1.8 million people, 90% of whom are children under five years of age, die from diarrheal diseases [2].…”

Section: Introductionmentioning

confidence: 99%

Resistance Profile of Vibrio spp. Strains Collected from Lagoon Bays and Wastewater in the City of Abidjan, Côte d'Ivoire, from January to June 2017

J.¹,

Sabine²,

S.³

et al. 2020

TOMICROJ

View full text Add to dashboard Cite

Background: Lagoons and wastewater constitute aquatics environments which receive or accounts for most domestic discharges. These waters constitute an important ecosystem for the proliferation of microorganisms. The microorganisms that harbor these waters can provide information on the persistence of certain diseases in the human population, including gastrointestinal infections such as Cholera. The genus Vibrio contains pathogenic aquatic bacteria found in lagoon bays and wastewater. Objective: The main objectives of this work were to confirm the presence of Vibrio spp. in lagoon bays and sewage of the city of Abidjan over the entire interepidemic period, and to evaluate their sensitivity to commonly used antibiotics. Methods: The isolation and identification of the microorganisms were carried out using classical bacteriological techniques (biochemical test, API 20E gallery). When necessary, serotyping was carried out using agglutination tests on slides. Antibiotic susceptibility testing was carried out using the Kirby-Bauer disk diffusion (KBDD) method. Results: This study identified 12 bacterial strains, 9/12 (75%) of which were Vibrio sp. strains. Two Vibrio species, namely Vibrio parahaemolyticus 2/9 (22%) and 7/9 Vibrio cholerae (78%) were identified. V. cholerae was isolated from both sewage and lagoon waters with dominance of serotype O1. The V. cholerae O1 and non-O1 strains showed a high level of resistance to sulfonamides, quinolones, fluoroquinolones, and moderate sensitivity to penicillins and tetracyclines. Resistant V. parahaemolyticus strains were also identified. Conclusion: The increased resistance of these bacteria could pose potential problems in the treatment of epidemics and other communicable diseases. The emergence of these multi-drug resistant strains of the genus Vibrio should prompt the Ivorian health authorities to maintain an epidemiological surveillance network for waterborne diseases throughout the country and to continue bacteriological sampling to monitor Vibrio's sensitivity to antibiotics.

show abstract

Étude de la qualité des eaux usées des deux retenues du bassin du Gourou au carrefour de l’Indénié à Abidjan en 2012.

Cited by 5 publications

References 5 publications

Assessment of Bacterial Load in Urban Wastewater in Drainage Canals in the Cities of Abidjan, Bouake and Yamousoukro, Côte d'Ivoire

Assessment of Bacterial Load in Urban Wastewater in Drainage Canals in the Cities of Abidjan, Bouake and Yamousoukro, Côte d'Ivoire

Impact of Irrigation Water on the Bacteriological Quality of Lettuce (Lactuca sativa) in the Market Garden Zone of Niamey, Identification of Enterobacteria

Resistance Profile of Vibrio spp. Strains Collected from Lagoon Bays and Wastewater in the City of Abidjan, Côte d'Ivoire, from January to June 2017

Contact Info

Product

Resources

About