نتایج جستجو برای: pesticides

تعداد نتایج: 19559  

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 1998
B E Mileson J E Chambers W L Chen W Dettbarn M Ehrich A T Eldefrawi D W Gaylor K Hamernik E Hodgson A G Karczmar S Padilla C N Pope R J Richardson D R Saunders L P Sheets L G Sultatos K B Wallace

The Food Quality Protection Act of 1996 (FQPA) requires the EPA to consider "available information concerning the cumulative effects of such residues and other substances that have a common mechanism of toxicity ... in establishing, modifying, leaving in effect, or revoking a tolerance for a pesticide chemical residue." This directive raises a number of scientific questions to be answered befor...

Journal: :International journal of environmental research and public health 2015
Monica K Silver Jie Shao Minjian Chen Yankai Xia Betsy Lozoff John D Meeker

Rates of pesticide use in Chinese agriculture are five times greater than the global average, leading to high exposure via the diet. Many are neurotoxic, making prenatal pesticide exposure a concern. Previous studies of prenatal exposure in China focused almost entirely on organochlorines. Here the study goals were to characterize the exposure of Chinese newborns to all classes of pesticides an...

2009
Masahiro Okihashi Yoko Kitagawa Hirotaka Obana Yukio Tanaka Yoko Yamagishi Kaori Saito Masayuki Kubota Michiko Kanai Taisuke Ueda Syuichi Harada Yoshio Kimura

The aim of this study was to develop a simple and efficient sample preparation methodology in pesticide multiresidue analysis that shortens the analytical process during extraction and cleanup. We have conducted recovery tests of about 300 pesticides in foods with a modified method reported previously. Ten g of sample was extracted with 20 ml of acetonitrile using a high-speed homogenizer. One ...

2016
Fariba Taghavian Gholamhassan Vaezi Mohammad Abdollahi Ali Akbar Malekirad

OBJECTIVE The purpose of this work was to compare DNA damage, acetylcholinesterase (AChE) activity, inflammatory markers and clinical symptoms in farmers exposed to organophosphorus pesticides to individuals that had no pesticide exposure. MATERIALS AND METHODS We conducted a cross-sectional survey with a total of 134 people. The subject group consisted of 67 farmers who were exposed to organ...

2012
Sherine Gaber Soha Hassan Abdel-Latif

BACKGROUND In Egypt, many pesticides are used to control pests in agricultural farms. Our study aimed to investigate knowledge and behaviors of farmers related to pesticide use and their relation to educational level and health locus of control. Health locus of control is the degree to which individuals believe that their health is controlled by internal or external factors. METHODS A cross-s...

2017
Eric Coker Robert Gunier Asa Bradman Kim Harley Katherine Kogut John Molitor Brenda Eskenazi

We previously showed that potential prenatal exposure to agricultural pesticides was associated with adverse neurodevelopmental outcomes in children, yet the effects of joint exposure to multiple pesticides is poorly understood. In this paper, we investigate associations between the joint distribution of agricultural use patterns of multiple pesticides (denoted as "pesticide profiles") applied ...

2016
D. L. Nguyen S. Gassara P. Sistat A. Deratani

The pollution of surface water by recently used pesticides in Mekong Delta, a main drinking water source, is increasing both on the concentration residues and the polluted area [1,2]. Nanofiltration (NF) is arising as the most appropriate method for removal of pesticides with not only a good efficiency but also low energy consumption in comparison with other pressure-driven membrane processes [...

2010
Matthew Miller Kavi Bhalla

Agricultural pesticides account for at least 250,000 suicide deaths each year, making pesticides the single most common means of suicide worldwide [1,2]. The proportion of suicide deaths attributable to pesticide self-poisoning varies considerably across the world: in Europe and the Americas fewer than 5% of suicide deaths involve pesticides; in the Eastern Mediterranean, African, and Southeast...

2002
D. Coggon

Pesticides are an important hazard in agriculture. In developed countries their use is strictly regulated. Risk assessment for new pesticides includes comparison of the potential exposures of spray operators and other farm workers with a reference value. Usually, this is derived from toxicological studies in animals with allowance for the uncertainties in extrapolating between and within specie...

Gholamreza Jahed Khaniki, Maryam Amir Ahmadi Mohammad Rezaei Nabi Shariatifar, Shahram Shoeibi,

Background: Food safety has a direct impact on human health and as such is a growing concern worldwide. Presence of harmful pesticide residue in food is a serious cause for concern among consumers so it is important to monitor levels of pesticides in foods. The aim of this study was simultaneous determination of amounts of 58 pesticides in 40 wheat flour samples collected from the Tehran market...

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