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Trends in NOx and SO2 concentrations

Trends in NOx and SO2 concentrations in air in various cities in the Russian Arctic 		Trends in NOx and SO2 concentrations

Mean maternal plasma lipid concentrations of DDE and DDT; figures below the graph show the DDE/DDT ratios

Mean maternal plasma lipid concentrations of DDE and DDT; figures below the graph show the DDE/DDT ratios 		Mean maternal plasma lipid concentrations of DDE and DDT; figures below the graph show the DDE/DDT ratios

Elements involved in the evaluation and handling of risks from environmental contaminants

Elements involved in the evaluation and handling of risks from environmental contaminants 		Elements involved in the evaluation and handling of risks from environmental contaminants

Illustration of the role of UV radiation in the biogeochemical cycling of DOC

Illustration of the role of UV radiation in the biogeochemical cycling of DOC 		Illustration of the role of UV radiation in the biogeochemical cycling of DOC

Illustration of the role of UV radiation in various light-dependent processes Natural UV radiation impacts the numbers, distribution and activity of several aquatic ecosystem targets and thus, theoretically, their interactions

Illustration of the role of UV radiation in various light-dependent processes Natural UV radiation impacts the numbers, distribution and activity of several aquatic ecosystem targets and thus, [..] 		Illustration of the role of UV radiation in various light-dependent processes Natural UV radiation impacts the numbers, distribution and activity of several aquatic ecosystem targets and thus, theoretically, their interactions

Geometric mean levels of HCB, DDE and PCBs in cord blood of newborns in different Canadian population groups

Geometric mean levels of HCB, DDE and PCBs in cord blood of newborns in different Canadian population groups 		Geometric mean levels of HCB, DDE and PCBs in cord blood of newborns in different Canadian population groups

An example of a type 2 ozone anomaly, showing levels of ozone depletion relative to the long-term mean

An example of a type 2 ozone anomaly, showing levels of ozone depletion relative to the long-term mean 		An example of a type 2 ozone anomaly, showing levels of ozone depletion relative to the long-term mean

Average annual UV dose falling on vertical and horizontal surfaces as a function of latitude The solid lines represent the situation for the normal UV level with undisturbed ozone (prior to 1978)

Average annual UV dose falling on vertical and horizontal surfaces as a function of latitude The solid lines represent the situation for the normal UV level with undisturbed ozone (prior to 1978) 		Average annual UV dose falling on vertical and horizontal surfaces as a function of latitude The solid lines represent the situation for the normal UV level with undisturbed ozone (prior to 1978)

Time trends of mean methylmercury concentrations

Time trends of mean methylmercury concentrations 		Time trends of mean methylmercury concentrations

(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) 		(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)

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 [..] 		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

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 		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

Snow cover over northern hemisphere lands between 1972 and 1996 for different seasons Values are determined from analyses of NOAA snow charts created using visible satellite imagery

Snow cover over northern hemisphere lands between 1972 and 1996 for different seasons Values are determined from analyses of NOAA snow charts created using visible satellite imagery 		Snow cover over northern hemisphere lands between 1972 and 1996 for different seasons Values are determined from analyses of NOAA snow charts created using visible satellite imagery

Monthly snow cover anomalies over northern hemispheric lands (including Greenland) between January 1972 and August 1995 Also shown are the 12-month running anomalies of hemispheric snow extent, plotted on the seventh month of a given interval

Monthly snow cover anomalies over northern hemispheric lands (including Greenland) between January 1972 and August 1995 Also shown are the 12-month running anomalies of hemispheric snow extent, [..] 		Monthly snow cover anomalies over northern hemispheric lands (including Greenland) between January 1972 and August 1995 Also shown are the 12-month running anomalies of hemispheric snow extent, plotted on the seventh month of a given interval

Schematic illustration of ecosystem carbon fluxes and nutrient circulation in the tundra Carbon and nutrient pathways are shown by dashed and continuous lines, respectively

Schematic illustration of ecosystem carbon fluxes and nutrient circulation in the tundra Carbon and nutrient pathways are shown by dashed and continuous lines, respectively 		Schematic illustration of ecosystem carbon fluxes and nutrient circulation in the tundra Carbon and nutrient pathways are shown by dashed and continuous lines, respectively
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