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LC-MS/MS analysis of neonicotinoid insecticides: Residue findings in chilean honeys Ciência e Agrotecnologia
Bridi,Raquel; Larena,Arturo; Pizarro,Paula Núñez; Giordano,Ady; Montenegro,Gloria.
ABSTRACT Neonicotinoids are a relatively new generation of insecticides that have been used for control of pests such as aphids, leafhoppers and whiteflies. This paper presents for the first time a determination of residues of four neonicotinoid insecticides (acetamiprid, thiamethoxam, thiacloprid and imidacloprid) in Chilean honey using QuEChERS extraction and UHPLC-MS/MS analysis. The limits of detection and quantification found for all analytes ranging from 0.34 to 1.43 μg kg-1 and from 0.30 to 4.76 μg kg-1, respectively. The extraction using QuEChERS method provided recoveries over 79% and the precision showed coefficient of variation lower than 20%. These data are in agreement with the international criteria that recommend general recovery limits of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: QuEChERS; Pesticide residues; Food analysis..
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000100051
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Evaluation of pesticide residues in oranges from São Paulo, Brazil Ciênc. Tecnol. Aliment.
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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Risk perception related to food Ciênc. Tecnol. Aliment.
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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Deltamethrin residues applied in different formulations in staked cucumber and the actions of insecticides on the pickleworm control Horticultura Brasileira
Baptista,Gilberto C de; Trevizan,Luiz Roberto P; Franco,André A; Silva,Renato A da.
Pesticide residues, especially in vegetables and fruits, are a reason for concern with respect to the health of consumers and workers that need to return to areas that have been treated with these agrochemicals. The objectives of this experiment were to (a) study the behavior of deltamethrin residues from different formulations on cucumber fruits; and (b) correlate insecticide contents in the fruits with pickleworm control. Treatments were as follows: (a) control; (b) three 30 mL applications of deltamethrin 25 EC 100 L-1 water (emulsifiable concentrate formulation); (c) three 7.5 mL applications of deltamethrin 100 EC 100 L-1 water (emulsifiable concentrate); and (d) three 3.75 mL applications of deltamethrin 200 CS 100 L-1 water (concentrate suspension)....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cucumis sativus; Diaphania nitidalis; Pesticide residues.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362008000300006
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Acephate and methamidophos residues in greenhouse and in field grown tomatoes Horticultura Brasileira
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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Análise das violações encontradas em alimentos nos programas nacionais de monitoramento de agrotóxicos. Infoteca-e
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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Método analítico multirresíduo para determinação de agrotóxicos e seus produtos de degradação em águas superficiais. Infoteca-e
SCORZA JUNIOR, R. P.; PAZ, R. B. da S..
Tipo: Folhetos Palavras-chave: Validação de método; Monitoramento; Method validation; Resíduo Agrícola; Agrotóxico; Cromatografia; Espectrometria; Pesticide residues; Liquid chromatography; Mass spectrometry; Monitoring.
Ano: 2020 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126682
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Organochlorine pesticides in residues in waters from the coastal area of Dar es Salaam and their effect on aquatic biota OceanDocs
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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Influence of repeated applications of glyphosate on its persistence and soil bioactivity PAB
Andréa,Mara Mercedes de; Peres,Terezinha Bonanho; Luchini,Luiz Carlos; Bazarin,Sheila; Papini,Solange; Matallo,Marcus Barifouse; Savoy,Vera Lucia Tedeschi.
Pesticide degradation studies are essential to evaluate its impact in the environment and on non-target organisms. The effect of repeated soil applications of the herbicide glyphosate on its dissipation and on soil microorganisms was studied by radiometric and microbial techniques. Results indicated fast dissipation of the [14C]-glyphosate or [14C]metabolites extractable residues (half-life of 0.92±0.29 month), but increasing half-lives of total mineralization ranging from 2.2 to 3.4 months as the number of applications increased from 1 to 4. No significant correlation was found between 14CO2 production and dehydrogenase activity.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pesticide residues; Mineralization; Dehydrogenases; Soil treatment.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003001100012
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Pesticides: Health impacts and alternatives. Proceedings of a workshop held in Colombo, 24 January 2002 AgEcon
Tipo: Working or Discussion Paper Palavras-chave: Pest control; Pesticide residues; Public health; Legislation; Policy; Social aspects; Risks; Health Economics and Policy; Risk and Uncertainty.
Ano: 2002 URL: http://purl.umn.edu/92700
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Current policy and status of DDT use for malaria control in Ethiopia, Uganda, Kenya and South Africa. AgEcon
Biscoe, Melanie L.; Mutero, Clifford M.; Kramer, Randall A..
Tipo: Working or Discussion Paper Palavras-chave: Malaria; Waterborne diseases; Disease vectors; Public health; Policy; Ddt; Legal aspects; Pesticide residues; Case studies; Health Economics and Policy; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Teaching/Communication/Extension/Profession.
Ano: 2005 URL: http://purl.umn.edu/92015
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CONSUMER WILLINGNESS TO PAY FOR REDUCED PESTICIDE RESIDUES IN TOMATOES: THE TURKISH CASE AgEcon
Akgungor, Sedef; Miran, Bulent; Abay, Canan.
The paper investigates the Turkish consumers' willingness to pay for a label that guarantees that pesticide residues in foods do not cause health problems. Contingent valuation survey was conducted to 1005 randomly selected households to elicit tomato purchasing behavior under alternative prices and residue scenarios. A tobit model was used to estimate a demand model. To determine the probability of purchase, a probit model was estimated.
Tipo: Conference Paper or Presentation Palavras-chave: Pesticide residues; Food safety; Consumer demand; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety.
Ano: 1999 URL: http://purl.umn.edu/21578
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IDENTIFYING PRIORITIES FOR PESTICIDE RESIDUE REDUCTION AgEcon
Kuchler, Fred; Ralston, Katherine L.; Unnevehr, Laurian J..
Tipo: Conference Paper or Presentation Palavras-chave: Pesticide residues; Dietary intakes; Dietary risks; Fruits and vegetables; Crop Production/Industries.
Ano: 1995 URL: http://purl.umn.edu/25963
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Chapter 12: USING CONTINGENT VALUATION TO VALUE FOOD SAFETY: A CASE STUDY OF GRAPEFRUIT AND PESTICIDE RESIDUES AgEcon
Buzby, Jean C.; Skees, Jerry R.; Ready, Richard C..
This book was originally published by Westview Press, Boulder CO, 1995.
Tipo: Book Chapter Palavras-chave: Pesticide residues; Grapefruit; Contingent valuation; Willingness to pay; Food Consumption/Nutrition/Food Safety.
Ano: 1995 URL: http://purl.umn.edu/25972
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Chapter 14: USING CONTINGENT VALUATION METHODS TO VALUE THE HEALTH RISKS FROM PESTICIDE RESIDUES WHEN RISKS ARE AMBIGUOUS AgEcon
van Ravenswaay, Eileen O.; Wohl, Jennifer.
This book was originally published by Westview Press, Boulder CO, 1995.
Tipo: Book Chapter Palavras-chave: Pesticide residues; Apples; Health risk; Contingent valuation; Willingness to pay; Food Consumption/Nutrition/Food Safety.
Ano: 1995 URL: http://purl.umn.edu/25983
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