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(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) |
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Critical loads of acidity for soilsCritical loads of acidity for terrestrial ecosystems in northern Europe and Canada north of 60 degrees N. |
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Estimated exceedance of critical loads of acidity for soils for three emission/deposition scenariosEstimated exceedance of critical loads of acidity for soils for three emission/deposition scenarios: 1990 emissions, the CLE scenario for 2010 (CLE, 2010), and the MFR scenario for 2020 (MFR, 2020). |
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Estimated exceedance of critical loads of acidity for surface waters in northern Europe for three scenariosEstimated exceedance of critical loads of acidity for surface waters in northern Europe for three scenarios: 1990 emissions, Current Legislation for 2010 (CLE 2010), Maximum technically Feasible [..] |
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(a) Critical deposition of sulfur, and (b) its exceedance, in forest soils of northern Europe and Russia (5th percentile of the calculation points in each EMEP grid cell)(a) Critical deposition of sulfur, and (b) its exceedance, in forest soils of northern Europe and Russia (5th percentile of the calculation points in each EMEP grid cell) |
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Median concentrations of sulfate, base cations, and nitrate in lakes of northern Fennoscandia and the Kola PeninsulaMedian concentrations of sulfate, base cations, and nitrate in lakes of northern Fennoscandia and the Kola Peninsula |
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Sensitivity of Arctic ecosystems to acid depositionSensitivity of Arctic ecosystems to acid deposition |
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Vegetation damage zones around NorilskVegetation damage zones around Norilsk |
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Contaminant emissions, transport and deposition in the ArcticAn illustration of the interplay between a) contaminant emissions distribution for sulfur dioxide and b) frequency of atmospheric south-to-north transport, yielding c) a net annual input of sulfur to [..] |
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Average (15-month) and 24-h average maximum air concentrations of Ni, Cu and As measured at several stations in northern Norway near to major point sources on the Kola PeninsulaAverage (15-month) and 24-h average maximum air concentrations of Ni, Cu and As measured at several stations in northern Norway near to major point sources on the Kola Peninsula |
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Diversity indices (Shannon-Weaver means) for phytoplankton, zooplankton and zoobenthos in lakes and streams in the Murmansk regionDiversity indices (Shannon-Weaver means) for phytoplankton, zooplankton and zoobenthos in lakes and streams in the Murmansk region |
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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) onApproximate 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 [..] |
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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 levelsSMART 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 [..] |
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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 levelsMAGIC 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 |
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Atmospheric sulphur cycleAtmospheric sulphur cycle |
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