- Pesticide Exposure and Toxicity
- Pesticide Residue Analysis and Safety
- Toxic Organic Pollutants Impact
- Insect Pest Control Strategies
- Pesticide and Herbicide Environmental Studies
- Mosquito-borne diseases and control
- Potato Plant Research
- Oil Palm Production and Sustainability
- Food Waste Reduction and Sustainability
- Crop Yield and Soil Fertility
- Agriculture and Rural Development Research
- Insect and Pesticide Research
- Heavy Metals in Plants
Obafemi Awolowo University
2009-2022
Adekunle Ajasin University
2015
Ekiti State University
2015
University of Cape Town
2013
Organochlorine pesticides (OCPs) are persistent whose usage have been banned or restricted worldwide and the presence of its residues in vegetables could affect nutritional quality as well cause adverse health effects. This study quantified OCP residue levels commonly grown consumed assessed carcinogenic non-carcinogenic risks from consumption contaminated vegetables. The extract were determined using a Gas Chromatograph coupled with Electron Capture Detector (GC-ECD). Health risk estimates...
ABSTRACT The authors assessed occupational exposure hazards among cacao farmers in Southwestern Nigeria. They administered structured questionnaires, supplemented with oral interviews, to 150 obtain information on insecticide use and perception of safety measures. used lindane, diazinon, endosulfan, propoxur for mirid control. Factors promoting included eating drinking during spraying operations, failure protective clothing, improper storage disposal insecticides. Varying proportions the...
Levels of organochlorine pesticides (OCPs) were determined in dried cocoa beans obtained from produce stores at Ondo and Ile-Ife, Southwestern Nigeria. Cocoa samples sun to a constant weight, pulverized soxhlet extracted with dichloromethane obtain the OCPs. Qualitative identification quantitative evaluation OCPs after clean-up on silica gel accomplished aid Gas Chromatography coupled an Electron Capture Detector (GC-ECD). had mean range ND (p, p'-DDE) 82.17 ± 54.53 ng/g p'-DDT) higher than...
The study assessed the levels of organochlorine pesticides (OCPs) in eight brands (A-H) regularly consumed maize-based complementary/breakfast foods Nigeria. We also evaluated dietary exposure infants and young children to detected OCPs. OCP residues were quantified using GC-ECD. A total 10 OCPs (β-HCH, δ- HCH, heptachlor, endosulfan sulfate, aldrin, endrin, dieldrin, p,p'-DDE, p,p'-DDT methoxychlor) detected. Total burden was highest F, D, G with mean concentrations 45.98 mg kg−1, 28.54...
ABSTRACT The blood of 76 cacao farmers from Southwestern Nigeria was monitored for erythrocyte cholinesterase enzyme activity (AChE) and hemoglobin values before after insecticide application. Eight had 30% to 50% baseline AChE activity, which suggests chronic organophosphate poisoning. inhibition suggestive occupational exposure (20% 30%) manifested by 28% the farmers, whereas hazard 11%. Significantly depressed post–insecticide application were similarly recorded among farmers. inhibition,...
Organochlorine Pesticide (OCP) residue were qualitatively and quantitatively determined using Gas Chromatography-Electron Capture Detector (GC-ECD) their potential health risks assessed in kolanut (Cola nitida) samples from selected markets Osun State, Southwestern Nigeria.Health risk estimates analyzed Estimated Average Daily Intake (EADI) Hazard Index (HI) with categorized for non-carcinogenic effects.A total of 17 OCPs identified residues detected all the analyzed.The results showed that...
Fluted pumpkin (Telfairia occidentalis) and amaranth (Amaranthus spp.) are common leafy vegetables produced consumed in southwestern Nigeria. These attract insect pests which controlled by pesticides that may have adverse impacts on human health.To determine the levels of dichlorodiphenyltrichloroethane (DDT) hexachlorocyclohexane (HCH) pesticide residues two evaluate potential health risks associated with their consumption.The residue were quantitatively qualitatively determined using a gas...
The levels of organochlorine (OC) pesticide residues in maize grains obtained from open markets and stores Ile-Ife Ondo were evaluated compared with established safety limits.The pretreated samples Soxhlet extracted the extracts analysed for their OCPs content using a Gas Chromatograph coupled an Electron Capture Detector (GC-ECD).A total 17 detected most percentage occurrence ranging between 20 100%, found exceeding Maximum Residue Limits (MRLs).The mean concentration -HCH, Endosulfan II...
Purpose The study assessed the levels of organochlorine pesticides (OCPs) and their potential non-carcinogenic carcinogenic health risks in four regularly consumed fruit vegetables. Design/methodology/approach OCPs’ residues were quantified using a gas chromatograph coupled with an electron capture detector (GC-ECD) dietary exposure children, adult consumers to detected OCPs was evaluated systemic risk estimations. Findings Aldrin, endrin, endrin aldehyde, a-endosulfan, β -endosulfan,...
A survey of pesticide wastes disposal practices by cocoa farmers was carried out using a structured questionnaire supplemented with personal interviews to obtain information from respondents. Data were subjected statistical analysis. Sixty-three percent the had no formal training on proper about 51.8% lacking how dispose wastes. The regarding left-over spray solutions include re-spraying already treated crops (33.9%) and/or apply over un-cropped land area (25.9%) until spraying tank is...
Introduction Concerns about pesticide drift from neighboring vineyards affecting children attending school on a farm adjacent to an urban suburb of Cape Town, Western in South Africa were investigated. Methods The study involved before-after design, measuring levels environmental exposure before and during application activities the neighbouring farms. Samples collected air, dust grass cuttings at preschool primary located farms September –December 2010 tested for pesticides using...
Background and Aims: In Nigeria, agriculture provides revenue for farmers field workers. order to maintain or improve crop yield on both small large scale farms, agrochemicals are extensively used. The distribution of pesticide agricultural purposes is mainly through privately owned retailing shops. aim the survey was assess knowledge, attitude practice agrochemical retailers in Osun State, Nigeria with respect handling their associated health risks. Methods: study conducted retail outlets...