نتایج جستجو برای: pesticides

تعداد نتایج: 19559  

F. Majidi-Shilsar F. Shakib M. Afshar Mohammadian M. Shokrzadeh-Lamuki S. Esmaeili Z. Almasi

Considering the increasing rice consumption in the world and also the excessive application of pesticides to increase production, an experiment was conducted to determine the pesticide residues and their effects on nitrogen, potassium and phosphorus content of Hashemi, Khazar and Gohar (SA13) rice cultivars, in a factorial design at randomized complete block design with three replications. In t...

Behrouz Janat Hossein Rastegar Iman Moazzami Goudarzi Mannan Hajimahmoodi Maryam Amirahmadi, Nafiseh Sadeghi Shahram Shoeibi

Recently, with increasing public awareness of food safety, developments of some valid and rapidly analytical methods are required for the determination of residual pesticides in crops.This study was conducted on validation of a reliable, accurate and precise method for multi analysis of pesticides residue in melon as a main fruit in Iranian food basket. A reliable, and valid method...

امیر احمدی, مریم, بهزاد, معصومه, جنت, بهروز, حاجی محمودی, منان, شعیبی, شهرام, صادقی, نفیسه, معظمی گودرزی, ایمان,

Background and purpose: Widespread use of plant pesticides in agriculture resulted in increasing concerns about pesticide hazards. In this research, the residual levels of pesticides in melons were evaluated by gas chromatography-mass spectrometry (GC-MS). Materials and methods: In this study, 75 samples of melons in Tehran market were used for simultaneous analysis of a variety of common pest...

2012
Xiude Hua Jifei Yang Limin Wang Qingkui Fang Gaiping Zhang Fengquan Liu

OBJECTIVE Organophosphorus (OP) pesticides are considered hazardous substances because of their high toxicity to nontarget species and their persistence in the environment and agricultural products. Therefore, it is important to develop a rapid, sensitive, and economical method for detecting OP pesticides and their residues in food and the environment. METHODS A broad, selective monoclonal an...

2013
Shaon Kumar Das

The mode of action of pesticides is extremely fascinating because the subject covers so many fields of biology and chemistry and has many practical implications. To understand how pesticides work (their mode of action), it is necessary to understand how the pests’ targeted systems normally function. It is also helpful to understand how human systems function in order to see similarities and dif...

2016
Hesham Dahshan Ayman Mohamed Megahed Amr Mohamed Mohamed Abd-Elall Mahdy Abdel-Goad Abd-El-Kader Ehab Nabawy Mariam Hassan Elbana

BACKGROUND Persistent organic pollutants represent about 95 % of the industrial sector effluents in Egypt. Contamination of the River Nile water with various pesticides poses a hazardous risk to both human and environmental compartments. Therefore, a large scale monitoring study was carried on pesticides pollution in three geographical main regions along the River Nil water stream, Egypt. MET...

Journal: :iranian journal of medical sciences 0
j. srinivasa department of medical bioscience, monash university malaysia, 46150 petaling jaya, malaysia p. maxim wipro technologies, bangalore, india sabah, kota kinabalu, sabah, malaysia j. urban department of medical bioscience, monash university malaysia, 46150 petaling jaya, malaysia a. d’souza school of medicine, university malaysia sabah, kota kinabalu, sabah, malaysia

exposure to pesticides could be one of the contributing cause to the falling sperm counts and rising levels of male infertility. adverse effects of pesticides in the environment first received widespread attention in the 1960s. however, only recently it has been postulated that long term, low exposure of these chemicals are increasingly linked to human health effects such as immuno-suppression,...

Attaollah Shakoori , Peyman Mahasti , Vahideh Moradi ,

Background: Organophosphorus pesticides are widely used in agriculture, homes, gardens, and veterinary practices. Extensive application of pesticides in agriculture often results in residues of these compounds being absorbed into the foods, including wheat. The aim of this study was to evaluate the residue levels of 20 organophosphorus pesticides in wheat samples collected from different region...

Background and Purpose: Poisoning with pesticides, drugs, and chemicals is one of the most important health problems in the world, causing a varying mortality rate in different regions. Easy access to a variety of drugs and poisons has caused some people to be hurt by using such things. The aim of this study was to evaluate the poisoning and mortality rate by using poisons, drugs, and chemicals...

2001
Yuichi Fushiwaki Kohei Urano

Adsorption isotherms of 10 pesticides and their biodegradation intermediates on clay minerals and soils were investigated to predict the fate of pesticides in the environment. The adsorption isotherms were expressed by the Freundlich isotherm equation. Pentachloronitrobenzene, 2,4,6-trichlorophenyl-4′-nitrophenylether, and various intermediates were highly adsorbed on soils, although isoprothio...

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