Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 7 of 7 for “"current use pesticides"”.
-
Fate of Current-use Pesticides in the Canadian Atmosphere
… and around the world, very large amounts of pesticides are produced and applied to agricultural crops each year. Although pesticide usage is declining, they are still a necessary part of industrial agriculture. Numerous pesticides have been quantified in the atmosphere, at high levels near …
-
Quantifying the presence of current-use insecticides and toxicity of sediments in urban residential watersheds in central Texas.
In the US, residential use of pyrethroid and other recently developed insecticides has increased substantially in recent years, yet the impact of these insecticides on benthic invertebrates in urban streams is largely unknown. The objective of this study was to determine the presence and …
-
Seawater survival and osmoregulation of Atlantic salmon (Salmo salar) parr-smolts exposed to four different pesticides
… cortisol concentrations at100 μg/L. Overall, the pesticides examined had minimal effects on fish osmoregulation and stress at the concentrations tested.
-
Predicting the bioavailability and toxicity of hydrophobic pesticides using bioassays and a solid phase microextraction approach
Pesticides are unique chemical stressors in that they are designed to have biological activity and are intentionally released into the environment in large quantities. Although the use of pesticides has resulted in effective pest control and increased crop production, pesticide use has caused …
-
Determining The Occurrence, Fate, And Effects Of Pesticide Mixtures Using The Aquatic Amphipod Hyalella Azteca
… insecticides. However, many legacy pesticides, such as organochlorine, and some current-use pesticides, such as pyrethroids, are strongly hydrophobic, and suspended or bedded sediments, rather than water, would generally be more appropriate matrices for monitoring. Yet sampling of …
-
Investigation into an adsorption and electrochemical regeneration process for the treatment of two trace level pesticides
… chemicals, surfactants, pharmaceuticals and pesticides. The European Union’s Water Framework Directive – aimed at achieving good environmental quality of surface waters at the catchment level - has a series of environmental quality standards that must not be exceeded for a wide range of water …
-
Toxicology of endocrine disrupting chemicals
… of the endocrine system and consequently causes an adverse effect in an intact organism or its progeny, or (sub) populations”. The clinical and public health significance of EDCs has been on the rise in recent years because increasing trends of many endocrine related human disorders have …