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Your search keyword '"Kanja, Laetitia"' showing total 25 results
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25 results on '"Kanja, Laetitia"'

3. Phenotypic And Genotypic Characterization of Extended Spectrum Beta- Lactamase-Producing Clinical Isolates of Escherichia coli and Klebsiella pneumoniae in Two Kenyan Facilities: A National Referral and a Level Five Hospital

Author

Maveke, Sylvia M., primary, Aboge, Gabriel O., additional, Kanja, Laetitia W., additional, Mainga, Alfred O., additional, Mureithi, Naftaly G., additional, Muchira, Beatrice W., additional, and Moriasi, Gervason A., additional

Published
2023
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16. Organophosphate and carbamate pesticide residues and accompanying risks in commonly consumed vegetables in Kenya.

Author

Omwenga, Isaac, Kanja, Laetitia, Zomer, Paul, Louisse, Jochem, Rietjens, Ivonne M.C.M., and Mol, Hans

Subjects
*PESTICIDE residues in food, *FENITROTHION, *ORGANOPHOSPHORUS pesticides, *TANDEM mass spectrometry, *COMMON bean, *VEGETABLES, *ADULT-child relationships
Abstract

The current study was conducted to assess the levels of organophosphates and carbamates in vegetables in Kenya and to examine potential consumer health risks. A total of 90 samples were analysed by liquid chromatography/high-resolution tandem mass spectrometry. Residues of acephate, chlorpyrifos, methamidophos, omethoate and profenofos were found in 22% of the samples, ranging from 10 to 1343 μg/kg. The EU MRL was exceeded in 21%, 10%, 8% and 22% of the samples of French beans, kales, spinach and tomatoes, respectively. Chlorpyrifos in spinach had an acute HQ of 3.3 and 2.2 for children and adults, respectively, implying that potential health risks with respect to acute dietary exposure cannot be excluded. For chronic dietary exposure, all chronic HQs were below 1. The HI for the pesticides was 0.54 and 0.34 for children and adults. Routine monitoring of OPs and carbamates in vegetables is recommended to minimise consumer's health risks. [ABSTRACT FROM AUTHOR]

Published
2021
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23. Organochlorine pesticides in human milk from different areas of Kenya 1983-1985

Author

Kanja, Laetitia, Skåre, Janneche Utne, Nafstad, Inger, Maitai, Charles, and Løkken, Per

Abstract

Residue levels of the chlorinated hydrocarbons p,p'-DDT (2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane), p,p'-DDE (2,2-bis(p-chlorophenyl)-1,1 -dichloraethane), hexa-chlorobenzene (HCB), α-, β-, and y-hexachlorocyclohexane (HCH), aldrin, dieldrin, and polychlorinated biphenyls (PCBs) were determined in human milk of Kenyan mothers living in different areas of Kenya. The main organochlorine contaminants found in all the milk samples analyzed were p,p'-DDT and p,p'-DDE. Great regional differences were found, and mean levels of sum DDT and DDT/DDE ratio ranged from 1.1 to 18.7 mglkg milk fat and from 0.7 to 5.7, respectively.In general, relatively low residue levels of HCB, α-HCH, β-HCH, aldrin, and dieldrin were detected in 59, 37, 27, 37, and 19%, respectively, of all the milk samples analyzed. Quantifiable residue levels of PCBs and α-HCH were not found. The results were examined in relation to differences in living conditions with regard to agricultural activities, dietary habits, and reported use of pesticides in the various sampling areas.

Published
1986
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