Search Results: "Freshwater environment" OR "acidification" OR "biological effects" OR "plankton" OR "benthic organisms"

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Concentrations of PCDD/F and non-ortho and mono-ortho PCBs as TCDD equivalents (pg/g ww) in Arctic bird eggs compared to thresholds for avian effects (1 Giesy et al 1994b, 2 Nosek et al 1992, 3 Verrett 1976, Concentrations of PCDD/F and non-ortho and mono-ortho PCBs as TCDD equivalents (pg/g ww) in Arctic bird eggs compared to thresholds for avian effects (1 Giesy et al 1994b, 2 Nosek et al 1992, 3 [..]
Sum-PCB (ng/g ww) in Arctic animals as food items compared to no-effect-concentrations (NOAEC) and environmental quality guidelines for protecting fish-eating/aquatic wildlife (1 Baril et al 1990, 2 USEPA 1995, Sum-PCB (ng/g ww) in Arctic animals as food items compared to no-effect-concentrations (NOAEC) and environmental quality guidelines for protecting fish-eating/aquatic wildlife (1 Baril et al 1990, 2 [..]
Concentrations of sum-PCB (µg/g ww) in Arctic bird eggs compared to thresholds for avian effects (1 Barron et al 1995, 2 Giesy et al 1994b, 3 Bosveld and Van den Berg 1994) Concentrations of sum-PCB (µg/g ww) in Arctic bird eggs compared to thresholds for avian effects (1 Barron et al 1995, 2 Giesy et al 1994b, 3 Bosveld and Van den Berg 1994)
Sum-DDT (ng/g ww) in Arctic animals as food items compared to no-effect-concentrations (NOAEC) and environmental quality guidelines for protecting fish-eating/aquatic wildlife (1 Baril et al 1990, 2 USEPA 1995, Sum-DDT (ng/g ww) in Arctic animals as food items compared to no-effect-concentrations (NOAEC) and environmental quality guidelines for protecting fish-eating/aquatic wildlife (1 Baril et al 1990, 2 [..]
AHH induction in lake trout from Canada AHH induction in lake trout from Canada
Comparison of bone collagen in lake trout from Peter Lake, NWT and from Yukon lakes, and in toxaphene- treated and control fish from Lake 260 Comparison of bone collagen in lake trout from Peter Lake, NWT and from Yukon lakes, and in toxaphene- treated and control fish from Lake 260
Aryl hydrocarbon hydroxylase (AHH, nmol/mg microsomal protein/min) activities in liver microsomes of beluga taken from the Eskimo Lakes area of the Mackenzie Delta, as a function of PCB congener concentrations in blubber Aryl hydrocarbon hydroxylase (AHH, nmol/mg microsomal protein/min) activities in liver microsomes of beluga taken from the Eskimo Lakes area of the Mackenzie Delta, as a function of PCB congener [..]
(a) Critical loads of acidity expressed as sulfur (5th percentile presented for each grid) for lakes in northern Fennoscandia and surface waters on Svalbard, and (b) their exceedance (95th percentile) (a) Critical loads of acidity expressed as sulfur (5th percentile presented for each grid) for lakes in northern Fennoscandia and surface waters on Svalbard, and (b) their exceedance (95th percentile)
Diversity indices (Shannon-Weaver means) for phytoplankton, zooplankton and zoobenthos in lakes and streams in the Murmansk region Diversity indices (Shannon-Weaver means) for phytoplankton, zooplankton and zoobenthos in lakes and streams in the Murmansk region
Approximate forest damage zones in the vicinity of Monchegorsk and Nikel and the visible-damage and non-visible-damage zones on the Kola Peninsula and Finnish Lapland The inset shows coverage (%) of lichens (Hypogymnia physodes and Parmelia olivacea) on Approximate forest damage zones in the vicinity of Monchegorsk and Nikel and the visible-damage and non-visible-damage zones on the Kola Peninsula and Finnish Lapland The inset shows coverage (%) of [..]
SMART model results for selected soil and lake output variables at Christmas lakes for the past 90 years and for three future scenarios assuming a 0%, 70% and 95% reduction of the present sulfur deposition levels SMART model results for selected soil and lake output variables at Christmas lakes for the past 90 years and for three future scenarios assuming a 0%, 70% and 95% reduction of the present sulfur [..]
MAGIC model results for the streamwater at Dalelva for the past 90 years and for three future scenarios assuming a 0%, 70%, and 95% reduction of the present sulfur deposition levels MAGIC model results for the streamwater at Dalelva for the past 90 years and for three future scenarios assuming a 0%, 70%, and 95% reduction of the present sulfur deposition levels
Concentrations of Hg in dated sediment cores from lakes in Arctic Finland and Canada Concentrations of Hg in dated sediment cores from lakes in Arctic Finland and Canada
Changes with time in (weight adjusted, geometric mean) concentrations of Hg in muscle tissue of pike (Esox lucius) in Sweden Changes with time in (weight adjusted, geometric mean) concentrations of Hg in muscle tissue of pike (Esox lucius) in Sweden
Lead levels in blue mussels (Mytilus edulis) in the fjord outside the Black Angel lead-zinc mine in West Greenland in 1986-87 Values on the fjord coast are measured concentrations Estimated concentrations in the fiord are indicated by isolines Lead levels in blue mussels (Mytilus edulis) in the fjord outside the Black Angel lead-zinc mine in West Greenland in 1986-87 Values on the fjord coast are measured concentrations Estimated [..]

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