Présence de métaux lourds et de résidus médicamenteux dans les effluents des établissements de santé de Dakar (Sénégal)

Touré, Ali A.; Garat, A.; Diop, Codou Mar; Cabral, Mathilde; Epote, M.J.; Leroy, E.; Fall, Moussa; Diouf, A.; Dehon, B.; Allorge, D.

doi:10.4314/ijbcs.v10i3.40

Cited by 9 publications

(7 citation statements)

References 24 publications

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“…Several studies [4,6,21,32,33] such as ours, have revealed low levels of contamination of hospital effluents by heavy metals. In addition, the assessment of the hazard (Table 5) due to the discharge of these effluents in Cotonou lagoon has shown that these effluents do not pose a great danger.…”

Section: Discussionmentioning

confidence: 54%

“…Their evacuation, as well as the traditional urban discharges, to the municipal sanitation network without prior treatment [3] also contribute to such situation. Among other pollutants, hospital effluents contain and trap heavy metals in aquatic Discharged in the Cotonou Lagoon (Benin) environments [4][5][6]. These heavy metals are source of serious ecological problems.…”

Section: Introductionmentioning

confidence: 99%

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Heavy Metal Content (Hg. Pb. Cd and Fe) of CHU-MEL Effluents Discharged in the Cotonou Lagoon (Benin)

Adanlokonon¹,

Chabi²,

Kanhounnon³

et al. 2019

IJEPP

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This study is conducted to characterize the heavy metal contamination of CHU-MEL effluents discharged into the Cotonou lagoon in order to assess the potential risk of these discharges for this ecosystem. To achieve this objective, the effluents collected at the end of the pipes acting as weirs in the lagoon were analyzed. The results from physico-chemical and heavy metals analyzes have made it possible to assess the quality of the effluents. The values of pH, temperature, conductivity, TDS and dissolved oxygen measured in situ are, on average, 7.95; 29.60°C; 639.60 µS/cm; 457.48 mg/l and 0.22 mg/L. The determination of heavy metals in the effluents showed low levels of contamination. The average levels of lead, cadmium, mercury and total iron are 0.1727 mg/L, 0.0261 mg/L, 0.0010 mg/L and 0.25 mg/L, respectively. This study shows that most of the parameters studied in the CHU-MEL effluent are in compliance with the standards. These effluents therefore pose a low risk for the aquatic organisms of the receiving environment, this added to the dilution effect of the effluents in the waters of the lagoon. However, the continual discharge of these effluents into the lagoon with their share of heavy metals.

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Section: Discussionmentioning

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Heavy Metal Content (Hg. Pb. Cd and Fe) of CHU-MEL Effluents Discharged in the Cotonou Lagoon (Benin)

Adanlokonon¹,

Chabi²,

Kanhounnon³

et al. 2019

IJEPP

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“…Here Fig. 2 In terms of severity, pollution received the highest number of mentions as a 'very severe' threat, probably because of its visible and short-term impact on habitats, fauna and flora [34], and indirectly because of its effects on populations who depend on the affected resources and can suffer from intoxication and contamination [35], [36]. Infrastructure, especially dams on rivers, and tourism, although being relatively rare threats, are considered to have a tangible impact on the sites exposed to them.…”

Section: Threats Of Anthropic Originmentioning

confidence: 99%

Perception of threats and related management measures: The case of 32 marine protected areas in West Africa

et al. 2020

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“…In developed countries, hospital wastewater are collected by a sewerage network. This system transports this wastewater by pipes to the treatment plant (trickling filter, lagooning, activated sludge or biological discs) where it is treated before being released into the natural environment [ 16 ]. The latter makes it possible to purify wastewater and discharge the treated effluent which does not pose a danger to humans and their environment [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Assessment of the quality of effluent management from university hospitals in the Littoral department in Benin

et al. 2021

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Background Liquid discharges from hospitals (effluents) threaten the environment and are now a central concern of all stakeholders in the health system and those in the protection of the environment. The management of effluents is a major problem in developing countries. The objective of this study was to assess the quality of effluent management at the level of university hospital centers (CHU) in the Littoral region in Benin. Methods It was a cross-sectional, descriptive, evaluative study that took place in 2020 to assess the “structure”, “process” and “results” components according to standard thresholds (Bad: < 60%; Acceptable: [60–80% [and Good: ≥ 80%). Results In all the CHUs, all the components, as well as the overall quality of the management of hospital effluents, had a score between 0 and 60%, with an assessment deemed bad. The poor quality of the process highlighted the non-compliance with standards relating to the management of hospital liquid discharges. Several factors linked to the “structure”, “process” and “results” components at the same time explain this poor management of university hospitals effluents. Conclusion These effluents discharged without prior treatment into wastewater could constitute a source of dissemination of potentially pathogenic microorganisms. It is therefore important to develop methods for treating these effluents before they are released into the natural environment.

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Présence de métaux lourds et de résidus médicamenteux dans les effluents des établissements de santé de Dakar (Sénégal)

Cited by 9 publications

References 24 publications

Heavy Metal Content (Hg. Pb. Cd and Fe) of CHU-MEL Effluents Discharged in the Cotonou Lagoon (Benin)

Heavy Metal Content (Hg. Pb. Cd and Fe) of CHU-MEL Effluents Discharged in the Cotonou Lagoon (Benin)

Perception of threats and related management measures: The case of 32 marine protected areas in West Africa

Assessment of the quality of effluent management from university hospitals in the Littoral department in Benin

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