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| Registros recuperados: 15 | |
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| Trevizan,Luiz Roberto P.; Baptista,Gilberto C. de; Papa,Geraldo. |
| Increasing horticultural production under protected cultivation requires more detailed studies about the occurence of pesticide residues, due to the special and peculiar environment under controlled conditions, in which some pests, that are of little concern in the field, become important. The insecticide acephate and its methamidophos metabolite residues were evaluated in greenhouse-grown tomatoes and compared to an open-field tomato crop. The treatments: (a) check; (b) one application of 75 g a.i. acephate.100 L-1 water; (c) one application of 150 g a.i.100 L-1 water; (d) four applications of 75 g a.i.100 L-1 water were evaluated. Fruit, leaf and soil samples were taken at (-1), zero, 1, 3, 7, 14, 21 days after the last or only application. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Pesticide residues; Metabolism; Greenhouse. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362005000100008 |
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| BARIZON, R. R. M.; SPADOTTO, C. A.; SOUZA, M. D. de; QUEIROZ, S. C. do N. de; FERRACINI, V. L.. |
| Nos últimos anos o Brasil atingiu um grande destaque no cenário agrícola internacional, consolidando-se como um dos maiores produtores de commodities agrícolas como soja, milho, café, açúcar, entre outras. Como efeito do modelo agrícola adotado pela maioria dos produtores, visando aumento da produtividade e aumento da área cultivada, o Brasil também tornou-se um dos maiores consumidores de agrotóxicos do mundo (KUGLER, 2012), uma vez que este insumo é imprescindível neste modelo de agricultura. Com o aumento no consumo de agrotóxicos as preocupações com os resíduos destas substâncias em alimentos ganham evidência e tornam- se cada vez mais frequentes. No Brasil várias iniciativas têm sido implementadas com o intuito de garantir níveis seguros de resíduos... |
| Tipo: Folhetos |
Palavras-chave: Monitoramento; Agrotóxico; Resíduo; Alimento; Toxidez; Pesticide residues; Food contamination; Maximum residue limits. |
| Ano: 2013 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/960481 |
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| NAKANO,Viviane Emi; KUSSUMI,Tereza Atsuko; LEMES,Vera Regina Rossi; KIMURA,Iracema de Albuquerque; ROCHA,Sonia Bio; ALABURDA,Janete; OLIVEIRA,Maria Celeste Cardeal de; RIBEIRO,Reinaldo Amauri; FARIA,Ana Lúcia Rosa; WALDHELM,Kennia Cristian. |
| Pesticides in “PERA” orange samples (N = 57) from São Paulo City, Brazil were assessed and the pesticide intake contribution was estimated for chronic risk assessment. Seventy-six pesticides were evaluated by the gas chromatography multi-residue method, including isomers and metabolites (4.332 determinations). The mean recoveries at the limit of quantification level were in the range of 72-115% and the relative standard deviation for five replicate samples was 1-11%. The limits of detection and quantification ranged from 0.005 to 0.4 mg.kg−1 and from 0.01 to 0.8 mg.kg−1, respectively. Pesticides were found in 42.1% of the samples at levels ranging from 0.06 to 2.9 mg.kg−1. Of the contaminated samples, 3.5% contained residues (bifenthrin and clofentezine)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pesticide residues; Oranges; Public health; Risk assessment; Chromatography. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612016000100040 |
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| Mwevura, H.; Othman, O.C.; Mhehe, G.L.. |
| Water samples were collected from Msimbazi and Kizinga rivers in Dar es Salaam and from the coastal marine environment receiving waters from these rivers during both the wet season and the dry season and analysed for various organochlorine pesticide residues using GC-ECD. The pesticides p,p’-DDE, p,p’-DDT, dieldrin and g-HCH were the only organochlorines detected at significantly greater concentrations above detection limits. There was a marked difference on the frequency of pesticide residue detection during the two seasons. All the wet season samples and 37.5% of the dry season samples contained p,p’-DDE at concentrations ranging from 0.05 to 0.45mg/l and 0.08 to 0.20mg/l respectively. p,p’-DDT was detected in 25% of the dry season samples at a... |
| Tipo: Journal Contribution |
Palavras-chave: Pesticides; Water pollution; Pesticide residues; Http://aims.fao.org/aos/agrovoc/c_16154. |
| Ano: 2002 |
URL: http://hdl.handle.net/1834/819 |
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| REMBISCHEVSKI,Peter; CALDAS,Eloisa Dutra. |
| Abstract There is no human activity that is risk free, including those most trivial and essential for survival, such as eating. Various factors impact the risk perception of a population, such as whether the risk is voluntary, known, brings some benefits or whether the information about the risk is provided by sources seen as trusted. Furthermore, regional and cultural aspects, gender and age can also have an impact on risk perception, and the level of scientific knowledge of the individual about the risks has in many cases little impact on the risk perception. In most countries, the perception of consumers to certain risks present in food, including genetically modified organisms (GMO), pesticides and food additives is high, probably due to the lack of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Risk perception; Food; Contaminants; Pesticide residues; Technology. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005210 |
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| Registros recuperados: 15 | |
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