Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"lindane"”.
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Microbial monitoring and degradation of lindane in soil
Lindane (γ-hexachlorocyclohexane, γ-HCH), once the most applied insecticide worldwide, is still considered a serious threat to the environment, due to its persistence in soil and water and to its potential to bioaccumulate in the food chain. Other ubiquitous HCH-isomers, formed as waste products …
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Inheritance of resistance to lindane in the German cockroach, Blattella germanica (L.)
1. The inheritance mechanism or resistance to lindane in the German cockroach, Blattella germanica (L.) was studied by determining the toxicity of lindane to the following populations ot cockroaches: a) lindane.resistant and non-resistant strains, b) the F1 and F2 progeny of reciprocal crosses …
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LINDANE METABOLISM: EPOXIDATION OF POLYCHLOROALKENES AND EFFECTS OF ROUTE OF ADMINISTRATION ON EXCRETION.
LINDANE METABOLISM: EPOXIDATION OF POLYCHLOROALKENES AND EFFECTS OF ROUTE OF ADMINISTRATION ON EXCRETION.
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Investigation into the partitioning of Lindane between air and dust in indoor environments
… people spend over 90% of their time indoors. Lindane, an SVOC which was widely used in the UK until 2004, adsorbs to house dust. House dust acts as a reservoir for such contaminants which are remitted by desorption into the air over time. A method for measuring Lindane air concentrations in a …
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The toxic effects of the pesticide lindane on the early developmental stages of the fathead minnow
Toxic effects of the pesticide Lindane on the eggs, yolksac fry and larvae of the fathead minnow (Pimephales promelas) were investigated over 14 days at 25 and 18°C. The general objective was to understand the effects of the pesticide on the early life stages of the fish, and to evaluate the …
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ΜΕΛΕΤΗ ΤΗΣ ΥΔΡΟΛΥΣΗΣ, ΤΗΣ ΠΡΟΣΡΟΦΗΣΗΣ ΚΑΙ ΤΗΣ ΔΙΑΣΠΑΣΗΣ ΤΩΝ ΦΥΤΟΦΑΡΜΑΚΩΝ METHYL-PARATHION, LINDANE ΚΑΙ ATRAZINE ΣΕ ΦΥΣΙΚΑ ΥΠΟΣΤΡΩΜΑΤΑ
… 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 OF SOILS FROM THESSALONIKI …
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Immunotoxicity of Pesticide Mixtures and the Role of Oxidative Stress
… C57BL/6 mouse thymocytes were exposed to lindane, malathion, and permethrin, either separately or in mixtures of two pesticides, in concentrations ranging from 37.5 uM to 1mM. These exposures caused both apoptotic and necrotic cell death in thymocytes as evaluated by 7-aminoactinomycin-D, …
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Certain biological comparisons of resistant and non-resistant strains of the German cockroach, Blattella Germanica (Linnaeus)
Strains of the German cockroach resistant to lindane, chlordane, and DDT were compared with a normal strain as to incubation period of eggs, developmental period of nymphs, and longevity of adults. The resistant strains were more heterogeneous than the normal, with the exceptions of the …
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Pesticide Mixtures Induce Immunotoxicity: Potentiation of Apoptosis and Oxidative Stress
The three insecticides of interest were lindane (an organochlorine), malathion (an organophosphate) and piperonyl butoxide (PBO; a synergist). Based on minimum cytotoxicity (> LC25), the following concentrations were chosen for the pesticide mixture studies: 70μM lindane (Lind), 50μM malathion …
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Subacute immunotoxic effects of the environmental contaminants 7,12-dimethylbenzanthracene (DMBA), hexachlorocyclohexane (lindane), and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) on spleen and pronephros cellularity and morphology and functional activity of macrophages contained in these hematopoietic organs in the cichlid fish tilapia (<i>Oreochromis niloticus</i>)
… (DMBA), hexachlorocyclohexane (lindane), and 2,3,7,8- tetrachlorodibenzo-p -dioxin (TCDD). Each chemical agent was administered to tilapia in separate experiments by intraperitoneal injection for five consecutive days. Following the final dose, total cellularity and histology of …
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Organic Contaminant Release from Melting Snow
… phenanthrene, pyrene, benzo(ghi)perylene, lindane, and atrazine. The behavior of those substances during melting is dependent on their partitioning between the different phases present within the bulk snow. Very water soluble organic chemicals, such as atrazine, are preferentially released …
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Determination of pesticides and chloroanisoles in water samples using gas chromatography-mass spectrometry.
… analysis for mixtures of carbaryl (a carbamate), lindane (an organochlorine), chlorpyrifos and chlorpyrifos-methyl (both organophosphorus compounds) and simazine (a triazine herbicide). These methods were then applied to the determination of pesticides spiked into surface and drinking water …
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Ecological and Trophic Distribution of Pesticides in Lack Poinsett, South Dakota
… endrin, heptachlor, heptachlor epoxide, lindane, methoxychlor, and toxaphene were determined by gas chromatography and thin-layer chromatography. DDT and its metabolites, DDD and DDE, were the highest residues detected in all trophic levels examined. Heptachlor, heptachlor epoxide, …
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Assessment of pesticide concentrations in environmental and biological parameters from two Kenyan Rift Valley Lakes
… widely used in Kenya, while aldrin, dieldrin and lindane are restricted and DDT, endrin, and heptachlor banned. Studies examining residue levels of these harmful chemicals in African Fish-Eagles are limited to small sample sizes examined in the 1970s and 1980s. This study is the first …
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Exploiting muscarinic acetylcholine receptors as an insecticidal target to enhance the toxicity of gamma-amino butyric acid channel blockers and the continued challenges with resistance
… channel confers resistance to dieldrin (Rdl), lindane, and fipronil, which I have confirmed using different routes of exposure. However, the same synergistic effect was not achieved in the resistant strain with the presence of this target-site mutation. This difference between two strains is …
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Characterisation of Treated Timber Sources of Pesticide Contaminants using Source Modelling Techniques
… for a hypothetical scenario showed that lindane poses a chronic health risk to building occupants. Mitigation measures based on short-term increased ventilation, absence from the building and the presence of adsorbent (sink) materials, were found to be ineffective in reducing this hazard. …
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Liver hydroxymethylbilane synthetase (EC 4.3.1.2) : an environmental and toxilogical kinetic study. The Effect of experimental design and circumstance on three common linearization methods used in determining the Michaelis-Menten kinetic constants
… carvone, benzanthracene, phenobarbital and lindane. The rat liver enzyme proved sensitive to a large spectrum of meavy metal ions and indicated the possible existence and cytsteine, histidine and tryptophan at the active site.Computer simulations were done to determine the effects of …
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Biomonitoring of wild fish to assess chemical pollution in English rivers : an application of a fish tissue archive
… for DDTs (banned in 1981) and to a lesser extent lindane, chlordane and copper. Further investigations revealed that a pesticide factory had been located close to the sampling site for much of the 20th century. This shows how unexpected results can point to previously unknown issues, which warrant …
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Environmental Study of Pesticide Residues in Soil and Water from Cotton Growing Areas in Mali
… were detected in water samples: γ-BHC (lindane), endosulfan I, endosulfan II, endosulfan sulfate, dieldrin, p,p-DDD, p,p-DDE and atrazine. All detected pesticides in water had concentrations below the quantification limit except for atrazine. Even though pesticides were found at low …
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The Veron Community Scabies Education and Eradication Program
… treatments and enforce an existing formal ban on Lindane products. The protocol from this research should be considered for adoption to provide a sustainable, practical, self-sufficient model for improved health outcomes, health behaviors, and health literacy. Future studies should replicate this …
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