Dietary exposure to pesticide residues in Yaoundé: The Cameroonian total diet study

Gimou, Marie-Madeleine; Charrondière, U. Ruth; Leblanc, Jean-Charles; Pouillot, Régis

doi:10.1080/02652030701567475

Cited by 54 publications

(52 citation statements)

References 17 publications

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“…Pesticide residues in staple foods (maize, rice, millet, etc.) have been recorded by Sonchieu (2004Sonchieu ( , 2006, Gimou et al (2008) and Sonchieu et al (2008), although dietary exposure to pesticide residues remains essentially unknown.…”

Section: Introductionmentioning

confidence: 96%

Survey of pesticide residues in maize, cowpea and millet from northern Cameroon: part I

Jean

Ngassoum

Tchatchueng

et al. 2010

Food Additives and Contaminants: Part B

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In northern Cameroon, the misuse of pesticides for pest control is common among small-scale farmers. Therefore, monitoring of pesticide residues was carried out on stored maize, cowpea and millet from eight localities. The determination of residues of organochlorines (lindane, α-endosulfan and β-endosulfan), organophosphorus compounds (malathion and pirimiphos-methyl), synthetic pyrethroids (permethrin) and carbamates (carbufuran) was performed using GC-ECD/NPD and GC-MS for confirmation. Organochlorine pesticides were detected more frequently and in higher concentrations, ranging from 0.02 ± 0.01 mg kg(-1) for β-endosulfan in millet to 9.53 ± 4.00 mg kg(-1) lindane in maize, than organophosphorus compounds, with concentrations varying from 0.04 ± 0.03 mg kg(-1) for pirimiphos methyl to 0.23 ± 0.38 mg kg(-1) for malathion in maize. Permethrin was found only in maize at 0.39 ± 0.23 mg kg(-1). No carbofuran was found. More than 75% of samples contained pesticide residues above the maximum residue limit (MRL); showing a potential human dietary risk related to consumption of these grains.

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Section: Introductionmentioning

confidence: 96%

Survey of pesticide residues in maize, cowpea and millet from northern Cameroon: part I

Jean

Ngassoum

Tchatchueng

et al. 2010

Food Additives and Contaminants: Part B

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“…The present study was a follow-up of the first published TDS of Yaoundé, Cameroon (Gimou et al 2008), that focused on pesticide residues and which was carried out in 2006. In 2010, exposure estimates of the same population to 25 elements were assessed.…”

Section: Introductionmentioning

confidence: 99%

Dietary exposure and health risk assessment for 14 toxic and essential trace elements in Yaoundé: the Cameroonian total diet study

Gimou

Pouillot

Charrondière

et al. 2014

Food Additives & Contaminants: Part A

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Dietary exposure to trace elements (aluminium, antimony, barium, cadmium, lead, nickel, vanadium, copper, manganese, molybdenum, germanium, lithium, strontium and tellurium) was assessed by the total diet study (TDS) method. Sixty-four pooled samples representing 96.5% of the diet in Yaoundé, Cameroon, were prepared "as consumed" before analysis. Consumption data were sourced from a households' budget survey. Dietary exposures were compared with health-based guidance or nutritional values and to worldwide TDS results. The health-based guidance value was exceeded by ≤ 0.2% of the study population for aluminium, antimony, barium, cadmium, nickel and vanadium. For lead, the observed 95th percentile of exposure (3.05 µg kg(-1) body weight day(-1)) equals the critical value considered by JECFA for cardiovascular effects; therefore, risk to health cannot be excluded for certain consumer groups. The population at risk of excess intake for manganese, copper, molybdenum and nickel was considered to be low (≤ 0.3%). The prevalence of inadequate intake was estimated at 5.9% for copper and was nil for molybdenum. Due to the lack of toxicological and/or nutritional consistent data to perform a risk assessment, dietary exposures to germanium, lithium, strontium and tellurium were provided as supplementary data. The food groups highest contributors to exposure were "tubers and starches" for aluminium (27%), lead (39%) and copper (26%), "cereals and cereal products" for cadmium (54%) and manganese (35%), "fruits, vegetables and oilseeds" for barium (34%), molybdenum (49%) and nickel (31%), "beverages" for antimony (27%) and "fish" for vanadium (43% - lower bound). Measures should be recommended to maintain low levels of exposure before the problem could become an important health or trade issue.

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“…Several years after the prohibition of its use, the molecule still persists in the soil [1,6], and continues to contaminate crops, water resources and ecosystems [5,[7][8][9][10][11]. While the population remains exposed to this food contaminant, [12][13][14], the global impact of chronic exposure is not well known [15] despite its contribution to an abnormally higher rate of prostate cancer [16]. As the main CHLD reservoir is polluted soil, mechanisms of 1.…”

Section: Introductionmentioning

confidence: 99%

Chlordecone retention in the fractal structure of volcanic clay

Woignier

Clostre²,

Macarie

et al. 2012

Journal of Hazardous Materials

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Dietary exposure to pesticide residues in Yaoundé: The Cameroonian total diet study

Cited by 54 publications

References 17 publications

Survey of pesticide residues in maize, cowpea and millet from northern Cameroon: part I

Survey of pesticide residues in maize, cowpea and millet from northern Cameroon: part I

Dietary exposure and health risk assessment for 14 toxic and essential trace elements in Yaoundé: the Cameroonian total diet study

Chlordecone retention in the fractal structure of volcanic clay

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