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Toxicity and subcellular fractionation of yttrium in three freshwater organisms : Daphnia magna, Chironomus riparius and Oncorhynchus mykiss
(American Chemical Society, 2019-08-15)
The demand for rare earth elements (REEs) has increased since the 1990s leading to the development of many mining projects worldwide. However, less is known about how organisms can handle these metals in natural aquatic ...
Effects of experimental thermocline and oxycline deepening on methylmercury bioaccumulation in a Canadian Shield lake
(American Chemical Society, 2014-02-10)
Environmental disturbances like deforestation or climate change may influence lake thermal and oxic stratification, thereby modifying cycles of contaminants such as mercury (Hg). In a lake naturally separated into three ...
Local fungi, willow and municipal compost effectively remediate petroleum-contaminated soil in the Canadian North
(Elsevier, 2018-12-15)
Low energy-input alternatives based on locally available products are needed for treating petroleum-hydrocarbon spills in northern regions. We tested the efficacy of three local biological components (municipal compost, ...
Increasing phytoremediation efficiency and reliability using novel omics approaches
(Cell Press, 2014-04-12)
Phytoremediation is a cost-effective green alternative to traditional soil remediation technologies, but has experienced varied success in practice. The recent omics revolution has led to leaps in our understanding of soil ...
Fate and trophic transfer of rare earth elements in temperate lake food webs
(2017-05-05)
Many mining projects targeting rare earth elements (REE) are in development in North America, but the background concentrations and trophic transfer of these elements in natural environments have not been well characterized. ...
Freshwater sample preservation for the analysis of dissolved low molecular mass thiols
(Wiley, 2017)
Low molecular mass (LMM) thiols are ubiquitous organosulfur peptides that play key roles in biogeochemical element cycling. These LMM thiols, found at low concentrations in the water column, are highly sensitive to oxidation ...
Mercury and selenium distribution in key tissues and early life stages of Yellow Perch (Perca flavescens)
(Elsevier, 2019-07-26)
Whereas early life stages are usually considered as particularly sensitive to both organic and inorganic contaminants, field studies assessing contaminant bioaccumulation in these stages are scarce. Selenium (Se) is thought ...
Role of prey subcellular distribution on the bioaccumulation of yttrium (Y) in the rainbow trout
(Elsevier, 2019-12-13)
Our knowledge of the processes leading to the bioaccumulation of rare earth elements (REE) in aquatic biota is limited. As the contamination of freshwater ecosystems by anthropogenic REE have recently been reported, it ...
Environmental drivers of rare earth element bioaccumulation in freshwater zooplankton
(American Chemical Society, 2018-12-26)
Human activities have resulted in significant
release of rare earth elements (REEs) into the environment.
However, the pathways of REEs from waters and soils into
freshwater food webs remain poorly understood. Recent
studies ...
Relationship between extracellular low-molecular-weight thiols and mercury species in natural lake periphytic biofilms
(American chemical Society, 2015-05-26)
The uptake of mercury by microorganisms is a key step in the production of methylmercury, a biomagnifiable toxin. Mercury complexation by low molecular weight (LMW) thiols can affect its bioavailability and thus the ...