Unprecedented increases in total and methyl mercury concentrations downstream of retrogressive thaw slumps in the western Canadian Arctic

KA St. Pierre, S Zolkos, S Shakil, SE Tank… - Environmental …, 2018 - ACS Publications
Retrogressive thaw slumps (RTSs) are thermokarst features created by the rapid thaw of ice-
rich permafrost, and can mobilize vast quantities of sediments and solutes downstream …

Arctic mercury cycling

A Dastoor, H Angot, J Bieser, JH Christensen… - Nature Reviews Earth & …, 2022 - nature.com
Anthropogenic mercury (Hg) emissions have driven marked increases in Arctic Hg levels,
which are now being impacted by regional warming, with uncertain ecological …

[HTML][HTML] Climate change and mercury in the Arctic: Abiotic interactions

J Chételat, MA McKinney, M Amyot, A Dastoor… - Science of the Total …, 2022 - Elsevier
Dramatic environmental shifts are occuring throughout the Arctic from climate change, with
consequences for the cycling of mercury (Hg). This review summarizes the latest science on …

Spatial and temporal assessment of mercury and organic matter in thermokarst affected lakes of the Mackenzie Delta Uplands, NT, Canada

R Deison, JP Smol, SV Kokelj, MFJ Pisaric… - … science & technology, 2012 - ACS Publications
We examined dated sediment cores from 14 thermokarst affected lakes in the Mackenzie
Delta uplands, NT, Arctic Canada, using a case-control analysis to determine how …

Drivers of mercury cycling in the rapidly changing glacierized watershed of the high Arctic's largest lake by volume (Lake Hazen, Nunavut, Canada)

KA St. Pierre, VL St. Louis, I Lehnherr… - … science & technology, 2018 - ACS Publications
Across the Arctic, glaciers are melting and permafrost is thawing at unprecedented rates,
releasing not only water to downstream aquatic systems, but also contaminants like mercury …

Snowmelt sources of methylmercury to high arctic ecosystems

LL Loseto, DRS Lean, SD Siciliano - Environmental science & …, 2004 - ACS Publications
Mercury in humans and other top predators living in the Arctic is present at elevated levels.
Since only methylmercury (MeHg) bioaccumulates in food chains, sources of MeHg need to …

Methylated mercury species in Canadian high Arctic marine surface waters and snowpacks

VLS Louis, H Hintelmann, JA Graydon… - Environmental …, 2007 - ACS Publications
We sampled seawater and snowpacks in the Canadian high Arctic for methylated species of
mercury (Hg). We discovered that, although seawater sampled under the sea ice had very …

Mercury exports from a High-Arctic river basin in Northeast Greenland (74 N) largely controlled by glacial lake outburst floods

J Søndergaard, M Tamstorf, B Elberling… - Science of the Total …, 2015 - Elsevier
Riverine mercury (Hg) export dynamics from the Zackenberg River Basin (ZRB) in Northeast
Greenland were studied for the period 2009–2013. Dissolved and sediment-bound Hg was …

Cycling of dissolved elemental mercury in Arctic Alaskan lakes

CM Tseng, C Lamborg, WF Fitzgerald… - … et Cosmochimica Acta, 2004 - Elsevier
Aqueous production and water-air exchange of elemental mercury (Hg0) are important
features of the environmental cycling of Hg. We investigated Hg0 cycling in ten Arctic …

Evidence for control of mercury accumulation rates in Canadian High Arctic lake sediments by variations of aquatic primary productivity

Outridge, H Sanei, F Goodarzi - Environmental science & …, 2007 - ACS Publications
Climate warming in the 20th Century has had profound effects on the limnology of High
Arctic lakes, including substantial increases in autochthonous primary productivity (APP) …