Analysis of anthropogenic factors and health risks associated with overflow flooding of a drainage canal in Abidjan

Ouattara, Zié Adama; Kablan, Armand Ketcha Malan; Gahi, Narcisse Zégbé; Ndouffou, Vital; Dongo, Kouassi

doi:10.1684/ers.2021.1583

Cited by 3 publications

(7 citation statements)

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“…These connections led to the leaks and breaks in the systems. Studies by Ouattara et al (2021) and Kablan (2017) had shown that defective connections were partly responsible for the malfunctioning of urban sanitation networks in the city of Abidjan, specifically the Cocody-Riviera municipality. Also, these connections increased the volume of water in the canal and promoted flooding in certain areas in case of rainfall.…”

Section: Discussion Anthropogenic Factorsmentioning

confidence: 99%

“…Successive housing developments have replaced the vegetation, leading to an increase in the amount of run-off. Alexis et al ( 2021) and Ouattara et al (2021), in their study on the Analysis of Domestic Waste water and rain water Systems in African Cities (Abidjan, Yaoundé, Lagos, Accra, and Johannesburg), have shown that urban drainage systems are often clogged with urban waste, especially when houses are built close to the drainage networks as observed along the 21/22 collector and Uniwax drainage system.…”

Section: Discussion Anthropogenic Factorsmentioning

confidence: 99%

“…These impacts were comparable to those of the Cocody-Riviera municipality. Indeed, in a study carried out on the M'Badon Canal, Ouattara et al (2021) showed that erosion and landslides forced 11.2% of families located in Akouédo village to vacate their homes and move permanently. During displacement, people spent a lot of money (on average 640 USD), which becomes a burden that modest families cannot bear.…”

Section: Environmental and Socio-economic Impacts Of System Dysfunctionmentioning

confidence: 99%

“…In Abidjan, half of the networks are more than 30 years old and their extension rate is < 3% per year since 1980 (Coulibaly et al, 2016). It is evident that a management logic is mainly focused on the need for maintenance and that investments in rehabilitation will occupy a significant part of municipal budgets in the coming years (Kangah and Della, 2015;Ouattara et al, 2021).…”

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confidence: 99%

“…These situations, which are responsible for several disorders such as backflow into basements and streets, inflow/infiltration and street collapse, render the network unable to fulfill the functions for which it was designed (Gnagne et al, 2015). Moreover, any postponement of interventions related to the rehabilitation of these networks will have a major impact on their sustainability and the quality of services (Ouattara et al, 2021). In this context and in view of these challenges, developed rehabilitation programmes are needed to maintain sanitation services at an acceptable level of performance.…”

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confidence: 99%

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Operational and structural diagnosis of sewerage and drainage networks in Côte d'Ivoire, West Africa

Ouattara

Kabo-bah

Dongo

et al. 2023

Front. Sustain. Cities

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In Cote d'Ivoire, the failure of urban sewage systems is a crucial problem for the drainage of wastewater and rainwater. This failure is due to many factors and therefore, calls for diagnostic studies. The present study aimed at analyzing these networks in order to identify the different factors that contribute to the operational and structural degradation in selected sewerage and drainage networks in Abidjan, Cote d'Ivoire. The method used in the study involved semi-structured interviews, video camera inspection and socio-environmental field surveys (geographical survey and household survey), followed by descriptive statistics. The results revealed that many structural, environmental and behavioral practice contribute to the progressive degradation of urban sewage systems. These factors are essentially those that prevent the normal flow of wastewater in the pipes such as the illegal dumping of solid waste, the unauthorized connection of wastewater networks, unsustainable urban agricultural practices, as well as the high concentration of vegetation on both sides of the network and the dilapidated infrastructure of the wastewater and rainwater networks. It was found that these factors are at the origin of the clogging and degradation of the sewers since 85% of the residents used these sewers as a dumping ground for solid waste.

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Section: Discussion Anthropogenic Factorsmentioning

confidence: 99%

Section: Discussion Anthropogenic Factorsmentioning

confidence: 99%

Section: Environmental and Socio-economic Impacts Of System Dysfunctionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Operational and structural diagnosis of sewerage and drainage networks in Côte d'Ivoire, West Africa

Ouattara

Kabo-bah

Dongo

et al. 2023

Front. Sustain. Cities

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A Review of sewerage and drainage systems typologies with case study in Abidjan, Côte d'Ivoire: failures, policy and management techniques perspectives

et al. 2023

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Assessment of solid and liquid wastes management and health impacts along the failed sewerage systems in capital cities of African countries: case of Abidjan, Côte d'Ivoire

Ouattara,

Dongo,

Akpoti

et al. 2023

Front. Water

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The management of domestic wastewater and rainwater is a major concern for the population of Yopougon. The study presents the causes of wastewater discharge from dysfunctional sewers and their health impacts on the population. It also highlights the environmental and health risk associated with poor solid and liquid waste management. This was based on literature search, semi-participatory workshop, physicochemical and bacteriological characterization of wastewater and finally through a household survey. The field survey was conducted on 245 household heads obtained using the Canadian statistical guidelines. The results obtained indicated that all main pollution indicators were; total nitrogen (TN, 525 ± 0.02 to 3077 ± 0.3 mg/l), nitrates (NO3, 146 ± 0.01 to 1347 ± 0.12 mg/l), biochemical oxygen demand (BOD, 278 ± 195.16 to 645 ± 391.74 mg/l), chemical oxygen demand (COD, 940 ± 650.54 to 4050.5 ± 71.42 mg/l) and total dissolved solids (TDS, 151 ± 9.9 to 766 ± 237.59 mg/l) which were above the values recommended by the World Health Organization (WHO) and Cote d'Ivoire national policy guidelines standards for the discharge of effluents into the environment. The analysis of the bacterial flora of the effluents revealed that the concentrations of Total Coliforms and fecal streptococci exceeded the values recommended by the WHO and national policy guidelines standards. This means that the populations of this area are prone to infectious diseases. Diseases such as malaria (84.53%), respiratory infections (61%), diarrhea (48.66%), intestinal diseases (44.5%), and typhoid fever (28.84%) were prevalent in the surveyed households.

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Analysis of anthropogenic factors and health risks associated with overflow flooding of a drainage canal in Abidjan

Cited by 3 publications

References 0 publications

Operational and structural diagnosis of sewerage and drainage networks in Côte d'Ivoire, West Africa

Operational and structural diagnosis of sewerage and drainage networks in Côte d'Ivoire, West Africa

A Review of sewerage and drainage systems typologies with case study in Abidjan, Côte d'Ivoire: failures, policy and management techniques perspectives

Assessment of solid and liquid wastes management and health impacts along the failed sewerage systems in capital cities of African countries: case of Abidjan, Côte d'Ivoire

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