Length distributions of minnows caught by electrofishing in the Joulujärvi area

Length distributions of minnows caught by electrofishing in the Joulujärvi area (sites 6 and 7), and in the Äälisjärvi area (sites 16 and 20) in 1993 and 2000
Length distributions of minnows caught by electrofishing in the Joulujärvi area

Data for Lake Otervatn in eastern Finnmark, showing alkalinity and brown trout catch per unit effort

Data for Lake Otervatn in eastern Finnmark, showing (a) alkalinity (μeq/L) and (b) brown trout catch per unit effort (CPUE, expressed in number of fish caught per 100 m2 of gill net area) since 1986, [..]
Data for Lake Otervatn in eastern Finnmark, showing alkalinity and brown trout catch per unit effort

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

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
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 [..]
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

Atmospheric sulphur cycle

Atmospheric sulphur cycle
Atmospheric sulphur cycle

Critical loads of acidity for soils

Critical loads of acidity for terrestrial ecosystems in northern Europe and Canada north of 60 degrees N.
Critical loads of acidity for soils

Sulphur dioxide concentrations in air and emissions from the smelter at Nikel

Annual SO2 concentrations in air at ground level at the Svanvik monitoring station, and SO2 emissions from the non-ferrous metal smelters at Nikel
Sulphur dioxide concentrations in air and emissions from the smelter at Nikel

SO2 concentration at the Svanvik monitoring station

Annual SO2 concentration in air at ground level at the Svanvik monitoring station and SO2 emissions from the non-ferrous metal smelters at Nikel
SO2 concentration at the Svanvik monitoring station

Annual average of alkalinity and pH as measured in rivers in northern Fennoscandia and the Kola Peninsula

Annual average of alkalinity and pH as measured in rivers in northern Fennoscandia and the Kola Peninsula
Annual average of alkalinity and pH as measured in rivers in northern Fennoscandia and the Kola Peninsula

Annual average of sulfate and base cation concentrations as measured in rivers in northern Fennoscandia and the Kola Peninsula Note: SO4 (non-seasalt) estimated for river Utsjoki from total sulfur

Annual average of sulfate and base cation concentrations as measured in rivers in northern Fennoscandia and the Kola Peninsula Note: SO4 (non-seasalt) estimated for river Utsjoki from total sulfur
Annual average of sulfate and base cation concentrations as measured in rivers in northern Fennoscandia and the Kola Peninsula Note: SO4 (non-seasalt) estimated for river Utsjoki from total sulfur

Median concentrations of sulfate, base cations, and nitrate in lakes of northern Fennoscandia and the Kola Peninsula

Median concentrations of sulfate, base cations, and nitrate in lakes of northern Fennoscandia and the Kola Peninsula
Median concentrations of sulfate, base cations, and nitrate in lakes of northern Fennoscandia and the Kola Peninsula

Sensitivity of Arctic ecosystems to acid deposition

Sensitivity of Arctic ecosystems to acid deposition
Sensitivity of Arctic ecosystems to acid deposition

Vegetation damage zones around Norilsk

Vegetation damage zones around Norilsk
Vegetation damage zones around Norilsk



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