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Showing 1 to 20 of 33 for “"pesticide residues"”.
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Environmental Study of Pesticide Residues in Soil and Water from Cotton Growing Areas in Mali
… knowledge, attitudes and practices regarding pesticide usage and to determine the amount of pesticide in soil and water samples collected at four cotton producing areas of Mali. The results from a survey of 24 farmers identified various concerns regarding personal and environmental safety. …
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The relationship between urinary organophosphate pesticide residues and reproductive development among boys living in the rural Western Cape
Background: Many contemporary agricultural pesticides are hormonally active, but few previous studies have investigated their effect on the reproductive health and growth of pubertal boys. A previous analysis found significant differences in serum reproductive hormone levels and lower …
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Exposition des travailleurs aux résidus de pesticides sur les fleurs coupées et sur les produits horticoles
… their professional tasks, come in contact with pesticide residues are exposed by various routes, with possible negative effects on their health. The aim of the thesis is to evaluate the exposure risks of two categories of workers indirectly exposed to pesticide residues (parent compounds and …
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Chlorinated Pesticide Levels in Knox County, Nebraska Farm Pond Fish
Chlorinated hydrocarbon pesticide levels were analyzed from blue gill (Lepomis Machrochirus) fillets. Hexane was used to extract the pesticide residues. A gas chromatograph equipped with an electron capture detector was employed for detection and quantitation of the pesticide residues. The results …
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Pesticides in the Aquatic Environment
Pesticides are ubiquitous contaminants of the freshwater aquatic environment. Pesticide residues are found in varying amounts in all components of the aquatic ecosystem including water, animal and plant tissue and sediments. Organochlorine pesticide residues in water, usually in the parts per …
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A. Chlorinated Pesticides in Soybeans, Soybean Oil, and Its by-Products During Processing. B. Effect of Thermal Oxidation on Mixtures of Palm and Soybean Oil
… and subjected to analysis for chlorinated pesticides. Different parts of the beans showed varying levels of residue concentrations. It was found that pesticide residues had a tendency to accumulate, in descending order, in hypocotyls, hulls, and cotyledons, on the basis of ground samples. …
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Relationship between pesticide residue levels and neurotoxicity among women on farms in the Western Cape
… living in and around farms are exposed to pesticides. Women are vulnerable to health risks posed by pesticides. To date there are few studies that have investigated the relationship between pesticide residues in human body fluids and neurotoxicity. This study therefore aims to investigate …
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Development of bioanalytical approaches as model tools for the rapid detection of pesticides
Pesticides are chemicals used internationally in the agricultural sector to repel and kill pests. However, misuse or misapplication of pesticides can cause detrimental effects for humans and animals, including livestock and non-target organisms. In addition, many studies have linked pesticides with …
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Part 1. A comparison of enantioselective uptake and degradation of chiral pesticides through biotic and abiotic processes in the aquatic environment; and Part 2. Development of a soybean oil based epoxy resin system and its application in composite material fabrication and Part 3. Development of an environmentally benign process for the recovery of scrap polystyrene.
… initiated to monitor the enantiomeric ratios of pesticide residues in aquatic organisms and determine trends in their environmental persistence as a function of time."--Abstract, page iii. Part 2. "The current study investigates the development of effective epoxy resin systems using derivatives …
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Assessment of Pesticide Residue Levels Among Locally Produced Fruits and Vegetables in Monze District ,Zambia
The use of pesticides in Zambia‟s agriculture sector is increasingly being seen as an important aspect of agricultural technology and innovation and as being critical for agriculture development, economic growth and poverty reduction. The use of pesticides however, often leads to the presence of …
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Assessment of Pesticide Residue Levels Among Locally Produced Fruits and Vegetables in Monze District ,Zambia
The use of pesticides in Zambia‟s agriculture sector is increasingly being seen as an important aspect of agricultural technology and innovation and as being critical for agriculture development, economic growth and poverty reduction. The use of pesticides however, often leads to the presence of …
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Organochlorine Pesticide Residue in Fish Fillets From Lake Springfield, Missouri
A method for extracting organochlorine pesticides from fish fillets using solid phase extraction techniques was developed. Fish fillets (10 and 20 g) were ground with 20 g of anydrous sodium sulfate. This mixture was then extracted with 100 mL of hexane, filtered and passed through a Chem Elut …
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Development of surface-enhanced Raman spectroscopy coupled with nanosubstrates and machine learning to improve food safety
The increasing use of pesticides in modern agriculture has raised serious concerns regarding food safety and public health due to the presence of hazardous residues in fresh produce. Traditional detection methods, such as chromatography, though accurate, are time-consuming, expensive, and require …
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ΜΕΛΕΤΗ ΤΗΣ ΥΔΡΟΛΥΣΗΣ, ΤΗΣ ΠΡΟΣΡΟΦΗΣΗΣ ΚΑΙ ΤΗΣ ΔΙΑΣΠΑΣΗΣ ΤΩΝ ΦΥΤΟΦΑΡΜΑΚΩΝ METHYL-PARATHION, LINDANE ΚΑΙ ATRAZINE ΣΕ ΦΥΣΙΚΑ ΥΠΟΣΤΡΩΜΑΤΑ
… IMPORTANT FACTORS WHICH INFLUENCETHE FATE OF PESTICIDES METHYL-PARATHION, LINDANE AND ATRAZINE IN AQUATIC AND SOIL SYSTEMS. WE STUDIED THE KINETICS OF HYDROLYSIS OF THESE PESTICIDES IN RELATION WITH TEMPERATURE AND PH AND THE EXTENT OF ADSORPTION AND CATALYTIC DEGRADATION IN AQUATIC EMULSIONS …
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Nuevas aportaciones al conocimiento y utilización de productos fitosanitarios para el control de enfermedades de la vid: Evaluación de posibles efectos sobre la fermentación y elaboración de vinos de calidad
… involved in this problem is the presence of pesticide residues in harvested grapes and, therefore, in fermenting must. The first objective of this work was the development of analytical methods for the determination of four fungicides: dichlofluanid, metalaxyl, pyrimethanil and penconazol and …
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Sublethal effects of an acetylcholinesterase-inhibiting pesticide on fitness-related traits in the western fence lizard (Sceloporous occidentalis)
Pesticides are commonly used around the world for a multitude of different purposes and on diverse habitats, including agricultural fields, wetlands, and personal lawns and gardens. Currently, acetylcholinesterase (AChE)-inhibiting pesticides are among the most prevalently used chemical pesticides …
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Otimização de um eletrodo de carbono vítreo modificado com nanotubos de carbono para detecção voltamétrica do fungicida carbendazim.
… techniques improve the determination of pesticides residues in food and environmental samples, presenting high sensitivity and selectivity. Accordingly, this work proposes the construction and optimization of a glassy carbon electrode chemically modified with carbon nanotubes multiwalled …
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