scholarly journals Health Risk Assessment of Heavy Metals (Pb, Cd, Hg) in Hydroalcoholic Gels of Abidjan, Côte d’Ivoire

2021 ◽  
Author(s):  
Urbain Paul Gnonsoro ◽  
Yolande Epouse Datte Ake Assi ◽  
Naminata Soumahoro Sangare ◽  
Yao Urbain Kouakou ◽  
Albert Trokourey
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Côte D'ivoire

scholarly journals Validation of Efficiency Method for Heavy Metals Determination in Kola Nuts (Cola nitida Schott & Endl.) from Côte d’Ivoire

2019 ◽  
pp. 1-9
Author(s):  
Kouadio Kan Rodrigue ◽  
Biego Henri ◽  
Nyamien Yves ◽  
Konan Ysidor ◽  
Konan Constant ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Cote D'ivoire ◽  
Analytical Method ◽  
Côte D’Ivoire ◽  
Distribution Channel ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Metal Contents ◽  
Cadmium Lead

Aims: The current study targets the achievement of a reliable process for the determination of heavy metal contents in kola nuts, namely cadmium, mercury, and lead, for better appreciation of the risks incurred from the consumption of such food products. Study Design: kola nuts collected from different stakeholders (planters, collectors, stores and centers) were analyzed after the validation of the proposed analytical method. Place and Duration of Study: Central Laboratory for Food Hygiene and Agro-Industry, LANADA in Abidjan, Côte d’Ivoire, running 2018. Methodology: Two references were used for the validation of the analytical method, namely the French standard NF V 03-110 and the European directive 2001/22/EC. The assays were achieved with an flame Atomic Absorption Spectrophotometer (AAS). The heavy metal contents of some samples collected from different sampling place were then determined Results: From the data, a significant regression chart was recorded for the heavy metals detection graphs, with significant correlation coefficients (R²˃ 0.99). The linearity domain was validated between 0.5 μg/L and 1.5 μg/L for cadmium, 15 μg/L and 45 μg/L for lead and from 10 μg/L to 100 μg/L for mercury. In addition, the LOD were 0.03 μg/L, 1.85 μg/L and 2.92 μg/L, while the LOQ were 0.07 μg/L, 6.52 μg/L and 3.32 μg/L for cadmium, lead and mercury, respectively. The relative standard deviations of the repeatability and reproducibility assays are below 4%, whereas standard additions of heavy metals are fully recovered, with percentages close to 100%. Contents of cadmium, lead and mercury in kola nuts are respectively valued at 22.97±9.01 μg/kg, 1065.57±613.76 μg/kg and 33.88±31.58 μg/kg from the farmers and 24.99±7.79 μg/kg, 296.51±98.18 μg/kg and 39.74±34.66 μg/kg from the storage centres. Conclusion: This analytical method could help in ensuring effective sanitary control at different critical points of kola nut distribution channel for promoting a good management of the toxicity concerns in such products.

scholarly journals Hazard Identification and Exposure Assessment for Bacterial Risk Assessment of Informally Marketed Milk in Abidjan, Côte d'Ivoire

2012 ◽  
Vol 33 (4) ◽  
pp. 223-234 ◽  
Author(s):  
Sylvie Mireille Kouamé-Sina ◽  
Kohei Makita ◽  
Solenne Costard ◽  
Delia Grace ◽  
Adjehi Dadié ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Exposure Assessment ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Hazard Identification ◽  
Cote D’Ivoire ◽  
Côte D'ivoire

scholarly journals Organochlorine Pesticide Residue Levels in Kola Nuts (Cola nitida Schott & Endl.) and Estimation of Risk Exposition in Côte d’Ivoire

2021 ◽  
pp. 23-37
Author(s):  
Deigna-Mockey Viviane ◽  
Biego Godi Henri ◽  
Kouadio Kan Rodrigue ◽  
Nyamien Yves Bleouh ◽  
Coulibaly Adama
Keyword(s):  
Health Risk ◽  
Organochlorine Pesticide ◽  
Pesticide Residue ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Hazard Quotient ◽  
Organochlorine Pesticide Residue ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Residue Levels

Background: The kola nut represents a significant economic interest for Côte d’Ivoire as well as many households and public authorities. Despite its obvious importance, the kola nut sector is facing a delicate sanitary quality of the marketed product. About 90% of produced kolanut is consumed daily fresh by people and poses a serious organochlorine pesticide toxicity health problem for consumers. Aims: This study aimed to determine the organochlorine pesticide residue levels in kola nuts and assess the risks of kola nuts consumption on population health in Côte d'Ivoire. Study Design: Samples were collected from Farmers, rural Collectors, urban Stores in Districts (Mountains, Comoe, Lagoons, Down-Sassandra) and big storage Centers of Anyama and Bouake for three separate periods of kola nuts harvesting (2016-2017 ; 2017-2018 and 2018-2019). Methodology: Concentrations of 24 organochlorine pesticide (OCPs) residues were measured using a gas chromatograph equipped with an electron capture detector. Results: The OCPs concentrations ranging from 5.19 to 92.93 µg/kg for Aldrin and Lindane. The results indicate that Methoxychlor, DDE (op'), Endrin ketone, Hexachlorobenzene, Chlorfenapyr, Chlorthal dimethyl and Quitozene concentrations are below the quantification limit (LOQ). Based on the concentrations and the daily consumption of kola nuts estimated at 0.6 g/person in Côte d'Ivoire, the intakes values estimated of OCPs vary from 5.4.10-5 to 7.96.10-4 µg/kg/day for Aldrin and Lindane, respectively. The Exposure Daily Doses (EDD) are all lower than the toxicological reference values. Thus, the occurrence of a toxic effect from OCPs after kola nuts consumption is very unlikely since the hazard quotient HQ sum is less than 1 (∑HQ = 0.13 < 1). Consumption of kola nuts from Côte d’Ivoire does not pose a health risk to consumers. Conclusion: Kola nuts would not represent a health risk for humans and would be safe for comsumption.

Mass spectrometry-based detection and risk assessment of mycotoxin contamination of ‘kankankan’ used for roasted meat consumption in Abidjan, Côte d’Ivoire

2020 ◽  
Vol 37 (9) ◽  
pp. 1564-1578
Author(s):  
Armel Elysée Yapo ◽  
Caroline Strub ◽  
Noël Durand ◽  
Angora Rémi Constant Ahoua ◽  
Sabine Schorr-Galindo ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Risk Assessment ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Meat Consumption ◽  
Cote D’Ivoire ◽  
Mycotoxin Contamination ◽  
Côte D'ivoire

scholarly journals Levels of Heavy Metals and Their Risk Assessment in Kolanuts (Cola nitida Schott & Amp; Endl.) Collected from Cote d’Ivoire, West Africa

2020 ◽  
pp. 58-68
Author(s):  
Kouadio Rodrigue ◽  
Deigna-Mockey Viviane ◽  
Ake Assi ◽  
Nyamien Yves ◽  
Coulibaly Adama ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Atomic Absorption Spectrophotometry ◽  
Daily Consumption ◽  
Public Authorities ◽  
Cote D’Ivoire ◽  
Lead And Cadmium ◽  
Côte D'ivoire

Background: Kolanut represents a significant economic interest for this country as well as many African households and public authorities. Despite its obvious importance, the sector of the kolanut is facing a delicate sanitary quality of the marketed product. The majority of the production (90%) of kola is consumed daily fresh by people and could cause a serious health problem for consumers if the toxicity due to heavy metals were proven. Aims: This study aimed to determine the heavy metals levels in kolanuts and estimate the risks of nuts consumption on population health in Côte d'Ivoire. Study Design: Samples were collected from farmers, rural collectors, urban stores in districts (Mountains, Comoe, Lagoons, Down-Sassandra) and big storage centers of Anyama and Bouake. Methodology: Concentrations of 3 heavy metals were measured using Atomic Absorption Spectrophotometry. The analysis of lead and cadmium was performed in flame mode (Air / nitrogen), with an AAS type VARIAN SPECTRAA 110 provided the furnace GTA 110. While, the analysis of mercury was carried out in hydride mode with a SAA system equipped with a vaporization unit (VGA 77). Results: Results showed the presence of the 3 heavy metals in kolanuts samples, with concentrations ranging from 5.37 μg/kg to 11.21 μg/kg, 17.49 μg/kg to 51.01 μg/kg and 19.99 μg/kg to 40.35 μg/kg for lead, cadmium and mercury, respectively. Based on the concentrations and the daily consumption of kolanuts estimated at 0.6 g/person in Côte d'Ivoire, the intakes values estimated by heavy metals were 4.8.10-3 ± 4.9.10-4 µg/j, 1.3.10-2 ± 9.07.10-4 µg/j and 1.7.10-2 ± 1.99.10-3 µg/j for lead, cadmium and mercury, respectively. The exposure daily doses (EDD) are all lower than the toxicological reference values. Thus, the occurrence of a toxic effect from Pb (HQ = 1.94.10 -5 <1), Cd (HQ = 1.9.10 -4 <1) and Hg (HQ = 3.4.10 -4 < 1) after Kolanuts consumption is very unlikely since the HQ are all less than 1. Conclusion: Consumption of kolanuts from Côte d’Ivoire would not present any health risk for the consumer.

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