نتایج جستجو برای: pesticide application

تعداد نتایج: 775571  

2006
Nanna Schulz Ivan Atanassov John Vijgen

Pesticide use and deposition of pesticide production residues contribute to environmental PCDD/PCDF contamination, in particular on a historical scale. Despite potentially substantial quantities of PCDD/PCDF emission, and remaining depositions via this route, only limited information is available on the resulting environmental contamination load or pathways. The total dioxin emission from the u...

2001
Vern Hofman

Spray drift is the movement of a pesticide through the air, during or after application, to a site other than the intended target. Drift is considered to be the most challenging problem facing applicators and pesticide manufacturers. Although drift may occur as vaporized active pesticide from the application site, it is usually the physical movement of very small drops from the target area at t...

Journal: :بوم شناسی کشاورزی 0
سید شهاب الدین معین الدینی اسکندر زند جعفر کامبوزیا عبدالمجید مهدوی دامغانی رضا دیهیم فرد

in the last decades, pesticides have been used extensively, in order to control pests and plant diseases, but negative impacts of pesticides caused several environmental problems and put human health in danger. in order to decrease environmental hazards of pesticide, risk of pesticide application should be measured briefly and precisely. in this study environmental impacts of registered insecti...

Journal: :E3S web of conferences 2023

The widespread use of pesticides for agricultural purposes results in their presence the environment. Pesticide occurrence is causing potential negative impacts on human health and environmental deterioration general. One interdisciplinary field to implement a technology converting conserving resources bioelectrochemistry. An integrated system based bioelectrochemical processes, namely Bioelect...

2011
Christos A. Damalas Ilias G. Eleftherohorinos

Pesticides are widely used in agricultural production to prevent or control pests, diseases, weeds, and other plant pathogens in an effort to reduce or eliminate yield losses and maintain high product quality. Although pesticides are developed through very strict regulation processes to function with reasonable certainty and minimal impact on human health and the environment, serious concerns h...

Journal: :International Journal of Health Geographics 2009
Stefan Leyk Claudia R Binder John R Nuckols

BACKGROUND Pesticide poisoning is a global health issue with the largest impacts in the developing countries where residential and small-scale agricultural areas are often integrated and pesticides sprayed manually. To reduce health risks from pesticide exposure approaches for personalized exposure assessment (PEA) are needed. We present a conceptual framework to develop a spatial individual-ba...

Journal: :Pest management science 2004
Robert W Malone Liwang Ma R Don Wauchope Lajpat R Ahuja Kenneth W Rojas Qingli Ma Richard Warner Matt Byers

Due to the complex nature of pesticide transport, process-based models can be difficult to use. For example, pesticide transport can be effected by macropore flow, and can be further complicated by sorption, desorption and degradation occurring at different rates in different soil compartments. We have used the Root Zone Water Quality Model (RZWQM) to investigate these phenomena with field data...

Journal: :The Science of the total environment 2015
Chris J Topping Peter S Craig Frank de Jong Michael Klein Ryszard Laskowski Barbara Manachini Silvia Pieper Rob Smith José Paulo Sousa Franz Streissl Klaus Swarowsky Aaldrik Tiktak Ton van der Linden

Pesticides are regulated in Europe and this process includes an environmental risk assessment (ERA) for non-target arthropods (NTA). Traditionally a non-spatial or field trial assessment is used. In this study we exemplify the introduction of a spatial context to the ERA as well as suggest a way in which the results of complex models, necessary for proper inclusion of spatial aspects in the ERA...

2006
Brett R. Dumbauld Steven Booth Daniel Cheney Andrew Suhrbier Hector Beltran

Integrated pest management is widely applied in terrestrial agriculture, but less so in aquaculture. Parallels to insect control in agricultural fields were exploited in this application of integrated pest management principles to control burrowing shrimp Neotrypaea californiensis and Upogebia pugettensis in Pacific Northwest U.S.A. oyster aquaculture. The pesticide carbaryl has been applied to...

Journal: :Journal of agricultural and food chemistry 2005
Anubha Goel Laura L McConnell Alba Torrents

Event-based precipitation samples were collected during the main agricultural season (April-September) over 4 years (2000-2003) at one site in the Choptank River Watershed on the Delmarva Peninsula. The samples were analyzed for 19 agricultural pesticides to determine the contribution of wet deposition as a source of these compounds to the Chesapeake Bay and the factors affecting the temporal t...

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