Physicochemical assessment of urban wastewater of Cotonou (Benin)

Daouda, Mohamed Moukorab Arêmou; Hounkpè, Sena Peace; Djihouessi, Metogbe Belfrid; Akowanou, Akuemaho Virgile Onésime; Aïna, Martin Pépin; Drogui, Patrick

doi:10.2166/wst.2021.073

Cited by 6 publications

(2 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the small West African state of Benin, information on the presence of active chemicals in the environment is scarce. Assessment of wastewaters' characteristics in Benin was determined on the basis of domestic (greywater and blackwater) and industrial (hospital, pharmaceutical, and commercial laundry) wastewater in Cotonou, the capital city [116]. The pharmaceutical wastewater in the area was found to have the highest concentration of organic contaminants (COD = 5912 ± 1026 mg/L, Abs.…”

Section: Beninmentioning

confidence: 99%

See 1 more Smart Citation

A Review on Contaminants of Emerging Concern in the Environment: A Focus on Active Chemicals in Sub-Saharan Africa

et al. 2021

View full text Add to dashboard Cite

Active chemicals are among the contaminants of emerging concern that are rarely covered in regulatory documents in sub-Saharan Africa. These substances are neither in the list of routinely monitored substances nor in the guidelines for routine environmental monitoring activities. This has been of concern to public health officials, toxicologists, communities, and governments, hence the need for risk assessment and regulation of these substances. In this review article, the presence of active chemicals in the sub-Saharan African environment was investigated. The results indicate the availability of few studies in some countries, while in other countries no reports of active chemicals were found, hence the need for further research targeting such countries. It was further observed that mixtures of active chemicals from different therapeutic categories—such as antibiotics and analgesics—were reported. The natural environment is increasingly at risk due to the presence of these substances, their metabolites, and their transformation byproducts. These substances are characterized by persistence as a result of their non-biodegradable nature; hence, they circulate from one environmental compartment to another through the food chain, causing harm along the way. Most studies that evaluated the toxicity of these substances considered the effects of a single drug, but observations indicated the presence of drug mixtures, hence the need for further evaluation of the effects of drug–drug interactions—including synergistic and additive effects—for environmental sustainability. The presence of ACs in several environmental compartments at quantifiable quantities was discovered in this investigation, indicating the potential for ecosystem injury as a result of bioaccumulation, bioconcentration, and biomagnification through the food chain. This necessitates further research on the subject in order to ensure a healthier environment.

show abstract

Section: Beninmentioning

confidence: 99%

“…Mohamed et al (2021) recommended that consideration should be given to Abs. UV 254, as compounds that are absorbed at this wavelength may include emerging contaminants from pharmaceutical loads [116].…”

Section: Beninmentioning

confidence: 99%