Canadian Archipelago

Surface Water. Hargrave et al. (2000) calculated BAFs as the ratio of the compound tissue concentration [wet and lipid weight basis (ng/g)] to the concentration of the compound dissolved in seawater (ng/mL). Average log BAF values for a-BHC in ice algae and phytoplankton collected from the Barrow Strait in the Canadian Archipelago were 6.18 and 6.08, respectively. 

The nonracemic compositions in the Arctic Ocean are due to microbial degradation of a-HCH both in tributary waters and within the oceanic water column. About 7% of a-HCH was enantioselectively degraded, with preferential elimination of the (-l-)-enantiomer, in streams draining into Amituk Lake on Cornwallis Island in the Canadian Archipelago [124]. In the lake itself, (—)-a-HCH was enriched (mean ER = 0.77) at 15-21 m depth [125]. 

Figure 4.18 Enantiomer fractions (EFs) of a-HCEi In air above Resolute Bay, Nunavut, Canada, showing a correlation (r = 0.68) when >90% open water is present (squares) but no correlation when 0-50 % open water is present (diamonds). (Reproduced with permission from Environmental Science and Technology, Hexachlorohexanes (HCHs) in the Canadian Archipelago. 2. Air-Water Gas Exchange of a- and y-HCH, by Liisa M. Jantunen, Paul A. Helm, Henrik Kylin and Terry F. Bidleman, 42(2), 465-470. Copyright (2008) American Chemical Society)...

The second largest tar sand deposits occur in the Oficina-Tremblador area of Venezuela, and have a significant development potential. Smaller deposits also occur in Malagasy, the U.S.A., Albania, and Trinidad, all of which are important for the locales in which they occur. Other oil sand deposits are known, such as the Lower Triassic Bjorne formation of Melville Island in the Canadian Archipelago, but their extent is less well defined. 

To be noted for comparison, the annual growth increase for arctic willow (Salex arctica) in Cornwallis Island in the Canadian Arctic Archipelago, 75°N, is a mere 0.03 ton/ha (Warren, 1957). The corresponded trace metal fluxes are shown in Table 6. 

TCDD and OCDD in seals and bears were found in the central Canadian Arctic Archipelago, and the lowest concentrations were found in the Hudson Bay area. The reason for higher concentrations of... 

Davies, G.R. and Krouse, H.R., 1975. Carbon and oxygen isotopic composition of late Paleozoic calcite cements, Canadian Arctic Archipelago — preliminary results and interpretation. Geol. Surv. Can. Paper, 75 1, Part B, 215—220. 

JR Obst, NJ McMillan, DJ Blanchette, DJ Christensen, O Faix, JS Han, TA Kuster, L Landucci, RH Newman, RC Pettersen, VH Schwandt, and MG Wesolowski. Characterization of Canadian Arctic Fossil Woods. In RJ Christie and NJ McMillan, eds. Tertiary Fossil Forests of the Geodetic Hills, Axel Heiberg Islands, Arctic Archipelago. Bull. 403, Geological Survey of Canada, 1991, pp. 123-146. 

H., and Wesolowsky, M. F. (1991) Characterization of Canadian arctic fossil woods. In Christie, R. L., and McMillan, N. J. (eds). Tertiary Fossil Forests of the Geodetic hills Axel Heiberg Island, Arctic Archipelago, Geological Survey of Canada, Ottawa, Canada. 

Samples of seal blubber from the high-arctic archipelago Svalbard contained levels of polychlorinated camphenes comparable with those found in biota in the Baltic (Andersson et al. 1988), and the same group of compounds was dominant in samples of narwhal (Monodon monoceros) blubber from Pond Inlet, Baffin Island in the Canadian high arctic (Muir et al. 1992). 

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