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| Registros recuperados: 43 | |
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| Loa Loza, Eleazar. |
| Para determinar la concentración de DDT y sus metabolitos en ejemplares de cocodrilos (Crocodylus acutus y C. moreletii), durante el período de junio a diciembre de 2004 se tomaron 80 muestras de sangre en 37 localidades de 13 estados de la zona costera de México. En algunos de estos sitios, ha sido aplicado el DDT para el control del vector del paludismo. Las muestras fueron procesadas en el laboratorio mediante cromatografía de gases con detector de captura de electrones. Se realizó un análisis de regresión lineal simple entre la longitud y el peso de los cocodrilos. Para comparar las concentraciones de DDT en sangre en función de la longitud y peso de los cocodrilos en las provincias biogeográficas, se realizó el análisis de varianza utilizando un... |
| Tipo: Tesis |
Palavras-chave: Reptiles; Crocodylus acutus; C. moreletii; DDT; Pesticidas; Contaminación; Maestría; Ganadería; Reptiles; Pesticide; Pollution. |
| Ano: 2007 |
URL: http://hdl.handle.net/10521/1565 |
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| Kvitko,Katia; Bandinelli,Eliane; Henriques,João A.P.; Heuser,Vanina D.; Rohr,Paula; Silva,Fernanda R. da; Schneider,Naye Balzan; Fernandes,Simone; Ancines,Camile; Silva,Juliana da. |
| Our mutagenesis group has been studying with important economic drivers of our state, such as agriculture, the footwear and leather industry and open-cast coal mining. Working conditions in these sectors have potentially harmful to humans. The aim of these studies is to determine the health risk of workers by biomonitoring subjects exposed to genotoxic agents. The main results of our studies with vineyard farmers we observed a high rate of MN and DNA damage in individuals exposed to pesticides (p < 0.001). In addition, some effects of genetic polymorphisms in the modulation of MN results were observed in this group. Tobacco farmers were also evaluated at different crop times. The results showed a significant increase in the Damage index and frequency in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Occupational exposure; Comet assay; Micronucleus test; Pesticide; Coal dust. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000600022 |
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| VIEIRA, L. M.; GALDINO, S.; PADOVANI, C. R.. |
| Os pesticidas compreendem um largo espectro de produtos quimicos usados na agropecuaria para controlar pragas, doencas de plantas e animais e combater ervas invasoras de culturas e pastagens. A eficacia comprovada desses produtos, aliada a crescente demanda setorial, viabilizou rapidamente a producao industrial, com o objetivo de incrementar a produtividade dos sistemas agropecuarios direcionados para a producao de alimentos. Os efeitos imediatos de toxicidade humana e ambiental foram durante muitos anos negligenciados ou considerados de menor relevancia. A expansao da agropecuaria na Bacia do Alto Paraguai (BAT), cuja superficie e de aproximadamente 29 mil km2, intensificada a partir da decada de 1970, passou a constituir uma serie ameaca para os... |
| Tipo: Outras publicações técnicas (INFOTECA-E) |
Palavras-chave: Rio Taquari; Pesticide; Contamination; Taquari river.; Contaminação; Impacto Ambiental; Meio Ambiente; Pesticida.; Pantanal; Environment; Environmental impact.. |
| Ano: 1998 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/793002 |
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| VIEIRA, L. M.; GALDINO, S.; PADOVANI, C. R.. |
| A partir da década de 1970, a remoção da vegetação nativa, principalmente dos cerrados, da Bacia do Alto Taquari (BAT), localizada em Mato Grosso do Sul e parte de Mato Grosso, se intensificou, para a implantação da agropecuária. Essa ocupação foi desordenada e não seguiu as técnicas mínimas de manejo e conservação de solo. As terras mais fracas foram transformadas em pastagens cultivadas. Os latossolos, localizados nos Chapadões e com topografia apropriada a mecanização agrícola, foram ocupados, principalmente, pelas culturas de soja, milho, arroz, trigo e feijão. A utilização de pesticidas passou a preocupar a sociedade pelo risco de afetar diretamente a saúde do homem pelo consumo de alimentos contaminados e, indiretamente, pelas cadeias alimentares. A... |
| Tipo: Circular Técnica (INFOTECA-E) |
Palavras-chave: Agropecuária; Bacia do Alto Taquari; Risco ambiental; Mato Grosso do Sul; Brasil; Pesticide; Agricultural; Environmental risk; Contamination.; Contaminação; Pesticida.; Brazil; Pantanal.. |
| Ano: 2001 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/806086 |
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| Akcha, Farida; Barranger, Audrey; Bachere, Evelyne; Berthelin, C. Heude; Piquemal, D.; Alonso, P.; Sallan, R. Rondon; Dimastrogiovanni, G.; Porte, C.; Menard, Dominique; Szczybelski, A.; Benabdelmouna, Abdellah; Auffret, M.; Rouxel, Julien; Burgeot, Thierry. |
| Genitors of the Pacific oyster Crassostrea gigas were submitted during gametogenesis to a short pulse exposure to the herbicide diuron at a realistic environmental concentration. Histological analysis showed no effect of diuron on gametogenesis course, sex ratio and reproductive effort. A non-significant increase in testosterone and progesterone levels was observed in genitors exposed to the herbicide. At cell level, diuron exposure was shown to modulate the phagocytic activity of circulating hemocytes. The results of a transcriptional analysis showed that diuron affected the expression of genes belonging to functions known to play a major role during oyster gametogenesis such as gene transcription regulation, DNA replication and repair, DNA methylation... |
| Tipo: Text |
Palavras-chave: Oyster; Pesticide; Reproduction; Histology; Gene expression; RT-qPCR; Steroid; Immunity. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00309/41983/83232.pdf |
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| Blanc, Mélanie; Antczak, Philipp; Cousin, Xavier; Grunau, Christoph; Scherbak, Nikolai; Rüegg, Joëlle; Keiter, Steffen H.. |
| The pyrethroid insecticide permethrin is widely used for agricultural and domestic purposes. Previous data indicated that it acts as a developmental neurotoxicant and can induce transgenerational effects in non-target organisms. However, associated underlying mechanisms remain unclear. The aim of this study was to investigate permethrin-related transgenerational effects in the zebrafish model, and to identify possible molecular mechanisms underlying inheritance. Zebrafish (F0) were exposed to permethrin during early-life (2 h post-fertilization up to 28 days). The F1 and F2 offspring generations were obtained by pairing exposed F0 males and females, and were bred unexposed. Locomotor and anxiety behavior were investigated, together with transcriptomic and... |
| Tipo: Text |
Palavras-chave: Transgenerational epigenetic inheritance; Developmental neurotoxicity; Glutamatergic signaling; DNA methylation; Pesticide. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00685/79661/82425.pdf |
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| Stachowski Haberkorn, S; Quiniou, Francoise; Nedelec, M; Robert, Rene; Limon, G; De La Broise, D. |
| Effects of the herbicide Basamais (bentazon) and the fungicide Opus (epoxiconazole) on oyster spat (Crassostrea gigas) were assessed using in-situ microcosms in a field experiment lasting 13 days. Six-week-old hatchery spat (mean size 1.1 mm), previously collected on PVC plates, was immersed in glass bottles filled with 200 mu m filtered seawater. Bottles were maintained underwater at 6 m depth and their water content changed every other day. Growth, measured as shell area index increase, was 126 +/- 4% in the control bottles. While no growth differences were observed between control and individual pesticide treatments at 10 mu g l(-1), oysters treated with a mix of 10 mu g l(-1) Opus and 10 mu g l(-1) Basamais showed a 50% growth reduction compared with... |
| Tipo: Text |
Palavras-chave: Epoxiconazole; Bentazon; Pesticide; Toxicity; Oyster; Microcosm. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4134.pdf |
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| Miege, C.; Mazzella, N.; Schiavone, S.; Dabrin, A.; Berho, C.; Ghestem, J. -p.; Gonzalez, C.; Gonzalez, Jean-louis; Lalere, B.; Lardy-fontan, S.; Lepot, B.; Munaron, Dominique; Tixier, Celine; Togola, A.; Coquery, M.. |
| Tipo: Text |
Palavras-chave: Intercomparison exercise; Marine Strategy Framework Directive (MSFD); Metal; Passive sampling; Pesticide; Polar organic chemical integrative sampler (POCIS); Polycyclic aromatic hydrocarbon (PAH); Priority chemical; Surface water; Water Framework Directive (WFD). |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00077/18853/16597.pdf |
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| Owoeye,Olatunde; Edem,Fabian V; Akinyoola,Bukola S; Arinola,Ganiyu O. |
| Dichlorvos (DDVP), an organophosphorus pesticide is a volatile compound which enters the human body through oral, dermal and inhalational routes and is excreted via the kidney. This study assessed the effects of DDVP on the histology of the kidney. Twenty five male rats (75.05 ± 5.55 g) were divided into 5 groups of 5 rats per group as follows: Unexposed group, exposure to DDVP alone for 5 weeks, and 3 other groups exposed to DDVP for 5 weeks in addition to supplement with Vitamin E, vitamin C, and red palm oil (RPO). Rats were exposed to DDVP in poorly ventilated cardboard cages for 4 hours daily. On completion of exposure, rats were euthanized and tissue processed by routine paraffin wax method and stained with H&E. Morphological alterations... |
| Tipo: Journal article |
Palavras-chave: Organophosphate; Pesticide; Glomerulus; Renal corpuscle; Vitamin- supplementation. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200017 |
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| VECHIA,J.F. DELLA; CRUZ,C.; SILVA,A.F.; CERVEIRAJR.,W.R.; GARLICH,N.. |
| ABSTRACT The objective of this study was to evaluate the feasibility of the use of macrophytes Lemna minor and Azolla caroliniana as biomarkers of exposure (acute toxicity) for atrazine, bentazon + imazamox and clomazone, insecticide alpha cypermethrin + teflubenzuron and fungicides pyraclostrobin and mixture pyraclostrobin + epoxiconazole, as well as the risk for environmental intoxication. For this purpose, four plants of L. minor and five of A. caroliniana were selected in a 50 mL Hoagland medium. For both plants, the following concentrations were used: 0.10; 1.07; 3.44; 11.16; 36.40 and 118.0 mg L-1 of each test product and a control with three replicates. The results of this study demonstrated higher sensitivity of L. minor to the tested pesticides,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioindication; Aquatic plants; Acute toxicity; Environmental monitoring; Pesticide. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000300597 |
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| Ferguson, Walter L.; Yee, Jet. |
| The short-term effect of pesticide bans generally is less efficient production, with higher consumer prices. The higher commodity prices provide windfall profits to producers of affected crops who did not need the banned pesticide, while those producers who were previous users of the banned pesticide may gain or lose, depending on price elasticities of demand and supply. Increased imports may dampen consumer prices and reduce previous gains made by some producers. A crop-by-crop phase-out, based on economic effects in place of an immediate ban on all affected crops, could reduce the adverse effects on consumers, producers, and the balance of trade, while still achieving many of the human health and environmental benefits of an immediate total ban of all... |
| Tipo: Journal Article |
Palavras-chave: Ban; Methyl bromide; Pesticide; Phase-out strategy; Soil fumigation; Agribusiness; Agricultural and Food Policy; Crop Production/Industries. |
| Ano: 1997 |
URL: http://purl.umn.edu/90406 |
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| Registros recuperados: 43 | |
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