Browsing Science (Faculty of) by Subject "toxicity"
Now showing items 1-10 of 10
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Chronic bioaccumulation and toxicity of cadmium from a periphyton diet to Hyalella azteca
(University of Waterloo, 2010-06-18)Dietary cadmium (Cd) can contribute significantly to chronic bioaccumulation and toxicity in aquatic organisms. This contribution needs to be quantified so that the relative importance of waterborne and dietary cadmium ... -
Chronic Nickel and Copper Toxicity in the Hyalella azteca Cryptic Species Complex
(University of Waterloo, 2016-04-26)The amphipod crustacean Hyalella azteca was thought to be a single species, but recent molecular studies have indicated that it is a large cryptic species complex. Previous work has indicated that the H. azteca complex ... -
Development of Models for the Prediction of Short-term and Long-term Toxicity to Hyalella azteca from Separate Exposures to Nickel and Cadmium
(University of Waterloo, 2008-04-30)This study investigated whether principles of the Biotic Ligand Model (BLM), originally developed to predict acute metal toxicity to fish, may be applied to metal accumulation and toxicity in short-term and long-term ... -
Development of Sensitive In Vitro Assays to Assess the Ocular Toxicity Potential of Chemicals and Ophthalmic Products
(University of Waterloo, 2009-04-27)The utilization of in vitro tests with a tiered testing strategy for detection of mild ocular irritants can reduce the use of animals for testing, provide mechanistic data on toxic effects, and reduce the uncertainty ... -
Examining the taxonomic identity of the green alga Oophila amblystomatis (Chlamydomonadales), the biogeography of its symbiont Ambystoma maculatum (Amphibia), and the response of the green alga to two herbicides
(University of Waterloo, 2016-09-02)The yellow spotted salamander (Ambystoma maculatum) shares a unique endosymbiotic relationship with the unicellular green alga Oophila amblystomatis. Though a number of studies have isolated and identified O. amblystomatis, ... -
Implications of copper and nickel exposure to different members of the Hyalella azteca species complex
(University of Waterloo, 2014-04-25)Hyalella azteca, an amphipod crustacean, is frequently used in freshwater toxicity tests. Since the mid-1980s, numerous organizations have collected and established cultures of H. azteca originating from localities across ... -
In-Situ Chemical Oxidation of Oil Sands Process Affected Groundwater
(University of Waterloo, 2014-12-01)Development of oil sands mining in Athabasca basin, NE Alberta has resulted in generation of more than 1 × 109 m3 of oil sands process-affected water (OSPW) mixed with fine tailings and currently stored in about 182 km2 ... -
Metal Mixture Toxicity to Hyalella azteca: Relationships to Body Concentrations
(University of Waterloo, 2008-01-25)A literature review of metal mixture interaction analyses identified that there was not a consistent method to determine the impact of metal mixtures on an aquatic organism. The review also revealed that a majority of the ... -
Starch nanoparticles: modifications, toxicity, and drug loading
(University of Waterloo, 2015-04-30)Nanoparticles as drug delivery vehicles have been well tested and transferred into clinical practice in the past few decades. The success of most nanocarriers is attributed to their biocompatibility, controlled release and ... -
Uptake and release of preservatives from soft contact lens materials
(University of Waterloo, 2022-01-13)Purpose: The purpose of this thesis was to examine the uptake and release of myristamidopropyl dimethylamine (MAPD) and polyhexamethylene biguanide (PHMB) from soft contact lens material using various in vitro models to ...