Time series of emissions of SO2 from European sources (Mylona 1993) and two major sources on the Kola Peninsula

Time series of emissions of SO2 from European sources (Mylona 1993) and two major sources on the Kola Peninsula
Time series of emissions of SO2 from European sources (Mylona 1993) and two major sources on the Kola Peninsula

The time series of (a) weekly-averaged non-seasalt (nss) sulfate aerosol at Alert, NWT, Canada, (b) monthly-averaged sulfate aerosol at Ny Ålesund, Norway, (c) weekly-averaged nitrate at Alert, and (d) weekly-averaged hydrogen ion at Alert

The time series of (a) weekly-averaged non-seasalt (nss) sulfate aerosol at Alert, NWT, Canada, (b) monthly-averaged sulfate aerosol at Ny Ålesund, Norway, (c) weekly-averaged nitrate at Alert, and [..]
The time series of (a) weekly-averaged non-seasalt (nss) sulfate aerosol at Alert, NWT, Canada, (b) monthly-averaged sulfate aerosol at Ny Ålesund, Norway, (c) weekly-averaged nitrate at Alert, and (d) weekly-averaged hydrogen ion at Alert

(a) Yearly average sulfur dioxide air concentration measurements in the Arctic, (b) Yearly average sulfate air concentration measurements in the Arctic

(a) Yearly average sulfur dioxide air concentration measurements in the Arctic, (b) Yearly average sulfate air concentration measurements in the Arctic
(a) Yearly average sulfur dioxide air concentration measurements in the Arctic, (b) Yearly average sulfate air concentration measurements in the Arctic

Emission rates of sulfur dioxide from Nikel together with annual average SO2 air concentrations measured at two sites in Norway (1978-1992)

Emission rates of sulfur dioxide from Nikel together with annual average SO2 air concentrations measured at two sites in Norway (1978-1992)
Emission rates of sulfur dioxide from Nikel together with annual average SO2 air concentrations measured at two sites in Norway (1978-1992)

Variation of the nitrate to non-seasalt (nss) sulfate equivalent ratio in precipitation at Norwegian recording stations based on measurements between August 1982 and July 1984

Variation of the nitrate to non-seasalt (nss) sulfate equivalent ratio in precipitation at Norwegian recording stations based on measurements between August 1982 and July 1984
Variation of the nitrate to non-seasalt (nss) sulfate equivalent ratio in precipitation at Norwegian recording stations based on measurements between August 1982 and July 1984

Transect south–north across the survey area near the western boundary in 1995

Transect south–north across the survey area near the western boundary in 1995, showing: (a) pH in a water extract of the O-horizon; (b) ammonium acetate extractable (pH 4.5) base cation concentrations [..]
Transect south–north across the survey area near the western boundary in 1995

Surface water runoff from the Dalelva catchment, northeastern Norway, 2001–2003

Surface water runoff from the Dalelva catchment, northeastern Norway, 2001–2003. (a) streamwater flow and pH, (b) non-marine concentrations of sulfate and base cations, and (c) chloride and non-marine [..]
Surface water runoff from the Dalelva catchment, northeastern Norway, 2001–2003

Contaminant emissions, transport and deposition in the Arctic

An 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 [..]
Contaminant emissions, transport and deposition in the Arctic

Cumulative distribution functions (CDF, %) of pH (water extraction)

Cumulative distribution functions (CDF, %) of pH (water extraction), exchangeable Ca, Mg, K, and Al concentrations and the exchangeable Al:(Ca+Mg+K+Na) ratio in the O-horizon in the ‘no visual damage’ [..]
Cumulative distribution functions (CDF, %) of pH (water extraction)

Transect south–north across the survey area near the western boundary in 1995

Transect south–north across the survey area near the western boundary in 1995 (C–D on Figure 5.2), showing: (a) pH in a water extract of the O-horizon; (b) ammonium acetate extractable (pH 4.5) base [..]
Transect south–north across the survey area near the western boundary in 1995

Visible (acute) SO2 injuries on (a) birch leaves and (b) Scots pine needles at Svanvik

Visible (acute) SO2 injuries on (a) birch (Betula pubescens) leaves and (b) Scots pine (Pinus sylvestris) needles at Svanvik, Norway, approximately 10 km northwest of Nikel
Visible (acute) SO2 injuries on (a) birch leaves and (b) Scots pine needles at Svanvik

Location of the catchments included in the Barents Project

Location of the catchments included in the Barents Project
Location of the catchments included in the Barents Project

Median values for a selection of key chemical variables

Median values for a selection of key chemical variables including the calculated critical load of acidity CLAc and exceedance
Median values for a selection of key chemical variables

Trends in non-marine sulfate, non-marine base cations, alkalinity, acid neutralizing capacity, pH, and labile aluminum

Trends in non-marine sulfate, non-marine base cations, alkalinity, acid neutralizing capacity, pH, and labile aluminum for lakes in the three sub-regions
Trends in non-marine sulfate, non-marine base cations, alkalinity, acid neutralizing capacity, pH, and labile aluminum

Estimated exceedance of critical loads of acidity for surface waters in northern Europe for three scenarios

Estimated 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 [..]
Estimated exceedance of critical loads of acidity for surface waters in northern Europe for three scenarios



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