Browsing by Subject "Bioaccumulation"
Now showing items 1-10 of 22
-
The application of artificial mussels in conjunction with transplanted bivalves to assess elemental exposure in a platinum mining area
(MDPI, 2020)There is increasing evidence that platinum group elements (PGE) are pollutants of emerging concern worldwide. Limited information exists on levels, particularly in regions where PGEs are mined. A passive sampling device ... -
An assessment of applicability of existing approaches to predicting the bioaccumulation of conventional substances in nanomaterials
(Setac, 2018)The experimental determination of bioaccumulation is challenging, and a number of approaches have been developed for its prediction. It is important to assess the applicability of these predictive approaches to nanomaterials ... -
The assessment of organic pollutant exposure and effects along the KwaZulu-Natal coastline
(2015)Marine pollution monitoring has been active in South Africa for the past 40 years, but with large periods of neglect where no research has been done. South Africa is ideally situated along the primary global shipping ... -
An assessment of the biodistribution, biopersistence and toxicity of gold nanoparticles
(North-West University (South Africa) , Potchefstroom Campus, 2015)The interest in biomedical applications of gold nanoparticles (AuNPs) has increased dramatically in the last decade due to their ease of synthesis, unique surface and optical properties. The main driver of this surge in ... -
Baseline bio-accumulation concentrations and resulting oxidative stress in Synodontis zambezensis after an acute laboratory exposure to 4,4′-DDT
(Elsevier, 2019)The use of 1,1′-(2,2,2-Trichloro-1,1-ethanediyl)bis(4-chlorobenzene) (DDT) as a pesticide for the control of insects vectors responsible for the spread of many life threatening diseases was officially banned in 1972 by the ... -
Bioaccumulation and subchronic toxicity of 14 nm gold nanoparticles in rats
(MDPI, 2016)Colloidal suspensions of 14 nm gold nanoparticles (AuNPs) were repeatedly administered intravenously at three dose levels (0.9, 9 and 90 µg) to male Sprague Dawley rats weekly for 7 weeks, followed by a 14-day washout ... -
Bioaccumulation and trophic transfer of total mercury in the subtropical Olifants River Basin, South Africa
(Elsevier, 2019)The present study describes total mercury (THg) levels in surface water, sediment and biota from the Olifants River Basin (ORB) (South Africa) and investigates the trophic transfer of THg by means of trophic magnification ... -
Biotransport of metallic trace elements from marine to terrestrial ecosystems by seabirds
(Wiley, 2019)Physical systems, such as currents and winds, have traditionally been considered responsible for transporting contaminants. Although evidence is mounting that animals play a role in this process through their movements, ... -
Determination of organic pollution in Phongola and Vaal Rivers, and the possible effects to wildlife—a comparison
(North-West University (South Africa), 2020)The aquatic environment is impacted by a wide range of anthropogenic activities, these include application of agricultural products like herbicides, insecticides and pesticides, and fertilisers; sewage; and industrial ... -
Ecotoxicological effect of CdTe quantum dots on Eisenia andrei
(North-West University (South Africa), 2020)Nanotechnology is a modern developing discipline producing a large quantity of consumer products, likely resulting in waste materials during the upcoming decades. Engineered nanoparticles with unique physicochemical ...