نتایج جستجو برای: pesticide application

تعداد نتایج: 775571  

2013
Xiangmei (May) Wu Deborah H Bennett Beate Ritz Daniel J Tancredi Irva Hertz-Picciotto

BACKGROUND Pesticide use patterns are essential inputs into human pesticide exposure models. Currently, data included for modeling purposes have mostly been collected in cross-sectional surveys. However, it is questionable whether responses to one-time surveys are representative of pesticide use over longer periods, which is needed for assessment of health impact. This study was designed to eva...

2017
Robert B Gunier Asa Bradman Kim G Harley Brenda Eskenazi

California has proposed limiting agricultural pesticide use within 0.4 km of schools and childcare facilities. However, the 0.4-km buffer may not be appropriate for all pesticides because of differing toxicities, fate, and application methods. Living near pesticide use has been associated with poorer birth outcomes, neurodevelopment, and respiratory function in children. More research about exp...

Journal: :Mass spectrometry reviews 2006
W M A Niessen P Manini R Andreoli

Combined liquid chromatography-mass spectrometry using electrospray or atmospheric-pressure chemical ionization has become an important tool in the quantitative analysis of pesticide residues in various matrices in relation to environmental analysis, food safety, and biological exposure monitoring. One of the major problems in the quantitative analysis using LC-MS is that compound and matrix-de...

2016
Sanzidur Rahman

Decisions about pesticide application for pest control is an issue of major concern, but research on factors affecting decision making is limited. This study investigates jointness in farmers’ decision to apply pesticides in multiple crops and socio-economic determinants of pesticide use across crops using a survey of 2083 farms from 17 districts in Bangladesh applying a multivariate Tobit mode...

2013
Xiaoxu SUN Lu QIAO Xia SUN Xiangyou WANG

In recent years, efforts have been reported to develop portable biosensor instrument in the detection felid such like pesticide residues. There is a great potential in the applications of biosensor technologies for rapid detection of pesticide residues in food and environment. In other words, meantime, biosensor instrument has wide application in the instruments market. This paper presents an o...

Journal: :Environmental Health Perspectives 1995
Jeff Wilson

Decline in Pesticide Use by Canadian Farmers Farmers in Ontario are spraying smaller amounts of pesticides on their crops than in the past. From 1983 to 1993, pesticide use dropped by a dramatic 28.3%, according to the Ontario Ministry of Agriculture, Food, and Rural Affairs (OMAFRA). By comparison, pesticide use in the United States fell 15% between 1982 and 1992. Under the Food Systems 2002 p...

Journal: :Agricultural Economics Research Review 2017

2012
Elpiniki G. Amvrazi

Most analyses of pesticide residues in foods are being performed in Raw Agricultural Commodities (RAC) for a variety of purposes, which include regulatory monitoring, import/export certification, risk assessment, field-application trials, organic food verification, and marketing to consumers. The levels of the positive detections in these analyses are generally being estimated on the basis of e...

Journal: :Journal of Agricultural Engineering 2013

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