BACKGROUND Chemical contaminants in the Canadian subarctic present a health risk with exposures primarily occurring via the food consumption. OBJECTIVE Characterization of soil contaminants is needed in northern Canada due to increased gardening and agricultural food security initiatives and the presence of known point sources of pollution. DESIGN A field study was conducted in the western ...

The development of a design and prototype an ice floe seismic station for recording earthquakes noises in the Arctic seas, as well concept its use are considered paper. Subarctic among key regions influencing global processes on Earth. need long-term monitoring arctic subarctic waters Russia from ice, improvement corresponding equipment, is due to great scientific interest complex geodynamics t...

There is currently limited understanding of the contribution of biological N2 fixation (diazotrophy) to the N budget of large river systems. This natural source of N in boreal river systems may partially explain the sustained productivity of river floodplains in Northern Europe where winter fodder was harvested for centuries without fertilizer amendments. In much of the world, anthropogenic pol...

This paper is based on research experience in radon transport. Radon in homes is a serious hcalth concern in the Tanana Valley region of Interior Alaska. The authors have much research experience in this area and arc keenly interested in radon transport and dynamics for this climatic zone. The source of radon for Interior Alaska is primarily uplands metamorphic schist bedrock, which can allow r...