نتایج جستجو برای: agricultural pesticides and irrigational returned water flow

تعداد نتایج: 17034756  

2013
Retta Ward

Executive Summary The NMDOH developed conclusions and recommendations about the potential association of pesticide exposure and Parkinson's disease (PD) based on the literature assessed. Two main categories were analyzed: studies without genetic interactions and studies with genetic interactions. Within these two categories, the following categories of pesticides were identified: 1) general, 2)...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی 1391

in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...

2002
Michael Ollinger Jorge Fernandez-Cornejo

Researchers, such as Headley (1968) and Campbell (1976) have shown empirically that chemical pesticides have played a major role in increasing agricultural productivity. However, there is concern that chemical pesticides may contaminate ground and surface water, have harmful effects on wildlife, leave residues on agricultural products, and cause health risks to farm workers (Harper and Zilberma...

2011
Edmund C. Merem Sudha Yerramilli Yaw A. Twumasi Joan M. Wesley Bennetta Robinson Chandra Richardson

With water resource planning assuming greater importance in environmental protection efforts, analyzing the health of agricultural watersheds using Geographic Information Systems (GIS) becomes essential for decision-makers in Southern Texas. Within the area, there exist numerous threats from conflicting land uses. These include the conversion of land formerly designated for agricultural purpose...

Journal: :Chemosphere 2004
Kunwar P Singh Dinesh Mohan Sarita Sinha R Dalwani

Studies were undertaken to assess the impact of wastewater/sludge disposal (metals and pesticides) from sewage treatment plants (STPs) in Jajmau, Kanpur (5 MLD) and Dinapur, Varanasi (80 MLD), on health, agriculture and environmental quality in the receiving/application areas around Kanpur and Varanasi in Uttar Pradesh, India. The raw, treated and mixed treated urban wastewater samples were col...

2015
Jorgen Ravoet Wim Reybroeck Dirk C. de Graaf

In a Belgian pilot study honey bee wax combs from ten hives were analyzed on the presence of almost 300 organochlorine and organophosphorous compounds by LC-MS/MS and GC-MS/MS. Traces of 18 pesticides were found and not a single sample was free of residues. The number of residues found per sample ranged from 3 to 13, and the pesticides found could be categorized as (1) pesticides for solely api...

pollution as well as a major threat to the health of the citizens due to the advancement at human civilization, technology development, pesticides and chemical fertilizers application, the increasing exploitation of natural resources by the agricultural sector and the increasing usage of fossil energy. Therefore, the aim of this study is evaluation of citizens’ attitude towards water and soil p...

pollution as well as a major threat to the health of the citizens due to the advancement at human civilization, technology development, pesticides and chemical fertilizers application, the increasing exploitation of natural resources by the agricultural sector and the increasing usage of fossil energy. Therefore, the aim of this study is evaluation of citizens’ attitude towards water and soil p...

Ashjari, Javad, Rezaei, Mohsen, Shakeri, Ata, Vahidifar, Zahra,

Most local people in the agricultural areas of Sistan and Baluchestan Province (Iran), generally consume shallow groundwater from farm wells. This study aimed to assess the water quality and health risk potentially of As, Pb, Cr and Ni for drinking purposes in Zarabad aquifer. Also the geochemical processes controlling chemistry of Zarabad aquifer were studied. Piper diagram shows two major hyd...

Journal: :Journal of environmental quality 2010
G Kahl J Ingwersen S Totrakool K Pansombat P Thavornyutikarn T Streck

Preferential flow from stream banks is an important component of pesticide transport in the mountainous areas of northern Thailand. Models can help evaluate and interpret field data and help identify the most important transport processes. We developed a simple model to simulate the loss of pesticides from a sloped litchi (Litchi chinensis Sonn.) orchard to an adjacent stream. The water regime ...

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