نتایج جستجو برای: Pesticides

تعداد نتایج: 19559  

Bahi Jalili, Fardin Sadegh-Zadeh, Samsuri Abd Wahid

The use of pesticides in modern agriculture is unavoidable because they are required to control weeds. Pesticides are poisonous; hence, they are dangerous if misused. Understanding the fate of pesticides will be useful to use them safely. Therefore, contaminations of water and soil resources could be avoided. The fates of pesticides in soils are influenced by their sorption, decomposition and m...

2014
Pallavi Mishra Ashutosh Sharma Deeplata Sharma

Pesticides are very hazardous and lethal for organisms as well as for humans. They present danger to consumers, bystanders and workers during manufacture, transport or, during and after use. Pesticides are also toxic to plants and many food crops, including fruits and vegetables, contain pesticide residues after being washed or peeled. Pesticides decrease the biodiversity in soil and it has bee...

ژورنال: سلامت و محیط زیست 2011
خدادادی, مریم, رحمانی, علیرضا, صمدی, محمدتقی,

Background and Objectives: Water pollution by pesticides has adverse effects on the  environment and  human health, as well .In recent years, advanced oxidation processes,  have been gone through to a very high degree for pesticides removal. Poly-Aluminum chloride (PAC) used  for water treatment, can be effective on pesticides removal. The aim of this research was to study the use of UV/O3 and ...

2012
Khalil Talebi Vahid Hosseininaveh Mohammad Ghadamyari

Pesticides are essential tools in integrated pest management (IPM) programs which can have the great influence if they are used properly. However, the adverse impacts of these compounds on the environment and ecosystem should not be ignored. The ecological effects of pesticides can be discussed from different points of view. Some of the significant consequences of use of pesticides are side eff...

2006
Brenda Eskenazi Asa Bradman Rosemary Castorina

Children's Exposure to Pesticides Exposures of Farmworkers and Their Families Potential Health Effects of Exposure to OP Pesticides Effects of Acute Exposure to OP and Carbamate Pesticides in Children Long-Term Sequelae of Acute Exposure to OP and Carbamate Pesticides in Adults Effects of Chronic Exposure to OP and Carbamate Pesticides in Adults Animal Evidence for Neurodevelopmental Effects of...

Journal: :iranian journal of public health 0
gh. h. sanai

since last few decades, the rapid industrialization has led to the development of many new chemicals, namely of which different kind of pesticides are of the most important ones. it is now evident that almost every food, agricultural product, water, soil and human body etc. is contaminated with some sort of chemical or pesticide. in some highly industrialized countries, new ailments have been r...

Journal: :advances in environmental technology 0
mahboubeh saeidi department of chemistry, faculty of science, vali-e- asr university of rafsanjan, iran atena naeimi afaculty of science, department of chemistry, university of jiroft, jiroft, iran marzie komeili komeili department of chemistry, vali-e-asr university, rafsanjan,iran

methoxy polyethylene glycol modified magnetite nanoparticles (pegmns) were synthesized and were characterized by scanning electron microscopy (sem), vibrating sample magnetometer (vsm), and x-ray diffraction (xrd) . the adsorption of diazinon onto (pegmns) was investigated by uv spectrophotometry at 236 nm, through batch experiments. the effects of adsorbent dosage, solution ph, contact time, s...

Journal: :Scandinavian Journal of Work, Environment & Health 1985

2007
A.V.F. Ngowi O. C. Ajayi

Smallholder farmers in Northern Tanzania grow vegetables that include tomatoes, cabbages and onions and use many types of pesticides to control pests and diseases that attack these crops. Based on the use of questionnaires and interviews that were conducted in Arumeru, Monduli, Karatu and Moshi rural districts, this study investigates farmers’ practices, perceptions and related cost and health ...

Journal: :Journal of chromatographic science 2000
M López-Mesas M Crespi J Brach J P Mullender

In this study, the efficiency of a clean-up method by gel permeation chromatography (GPC) for the separation of pesticides from lanolin is analyzed. The pesticides analyzed belong to two different families, organophosphorous and synthetic pyrethroids. Lanolin, a standard mixture of the pesticides, and a lanolin-pesticides mixture are injected in a GPC column. The recoveries and elution times fr...

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