Conceptual model of the terrestrial/freshwater compartment showing the main subcompartments and contaminant transfers, and exchanges with the atmosphere and oceans
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Hydrographs showing two types of streamflow regimes for Arctic rivers: a) Arctic nival regime and b) proglacial regime
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a) The annual (1973-1990) and mean annual hydrographs for the Mackenzie River above the Arctic Red River, NWT, Canada, indicating the dominance of the spring freshet in May
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Monthly mean discharge expressed as a percent of annual discharge from available data for selected Russian and Canadian rivers draining to the Arctic
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Comparison of monthly water and suspended sediment loads to the Mackenzie Delta plain for the period 1974-1983
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Illustration of the movement of less dense spring freshet water moving through a small Arctic lake underneath the surface ice cover, but not mixing with the water column
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Monthly mean discharges for the Nelson River, Canada for the period 1960 to regulation in 1973, compared to post-regulation discharges from 1976 to 1990
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Distribution of organochlorine contaminants (OCs) in Arctic air, snow, seawater, and the marine mammals food chain Data for the six major classes of OCs are plotted for each compartment or species as [..]
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Concentrations of sum-HCH in Arctic air
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Source regions for HCH, chlordane, toxaphene, and PCBs in Arctic air based on 5-day back-trajectories for elevated air concentrations at Tagish, Alert, and Ny-Ålesund
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Concentrations of sum-PCB in Arctic air (sum of CBs 28, 31, 52, 101, 105, 118, 138, 153, 156, 180)
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Flux of HCH and sum-PCB (sum of 10 congeners) in precipitation at Heimaey Island, Iceland
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Concentrations of Aroclor PCBs in soils and plants (ng/g dw) associated with military radar sites in the Canadian Arctic a) Mean and maximum total PCB concentrations in soils and associated plants [..]
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Average concentration (ng/g dw) of PCBs in Arctic lichen and mosses
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Relative tissue concentrations of organochlorine compounds detected in lichen, and in adipose tissue of caribou and wolf at three locations in the Northwest Territories, Canada
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