Historical profiles of PCBs (trichloro- and all other) in slices from dated sediment cores in Alaska, Canada, and Finland Median age of each slice is given on the vertical axis The green lines indicate the source function of PCBs

Historical profiles of PCBs (trichloro- and all other) in slices from dated sediment cores in Alaska, Canada, and Finland Median age of each slice is given on the vertical axis The green lines [..]
Historical profiles of PCBs (trichloro- and all other) in slices from dated sediment cores in Alaska, Canada, and Finland Median age of each slice is given on the vertical axis The green lines indicate the source function of PCBs

Concentrations, as geometric means, of major organochlorine groups in burbot liver at Fort Good Hope, NWT, Canada (1986-94) Vertical bars denote standard errors

Concentrations, as geometric means, of major organochlorine groups in burbot liver at Fort Good Hope, NWT, Canada (1986-94) Vertical bars denote standard errors
Concentrations, as geometric means, of major organochlorine groups in burbot liver at Fort Good Hope, NWT, Canada (1986-94) Vertical bars denote standard errors

Temporal trends in levels of PCB, DDT, alpha-HCH, and HCB in muscle from Lake Storvindeln pike and Lake Abiskojaure char in Sweden Mean levels (µg/g lw) and 95% confidence intervals of the mean are represented by dark points,

Temporal trends in levels of PCB, DDT, alpha-HCH, and HCB in muscle from Lake Storvindeln pike and Lake Abiskojaure char in Sweden Mean levels (µg/g lw) and 95% confidence intervals of the mean are [..]
Temporal trends in levels of PCB, DDT, alpha-HCH, and HCB in muscle from Lake Storvindeln pike and Lake Abiskojaure char in Sweden Mean levels (µg/g lw) and 95% confidence intervals of the mean are represented by dark points,

Temporal trends in PCB and DDE levels in Arctic seabird eggs from Prince Leopold Island, Canada (1975-1993)

Temporal trends in PCB and DDE levels in Arctic seabird eggs from Prince Leopold Island, Canada (1975-1993)
Temporal trends in PCB and DDE levels in Arctic seabird eggs from Prince Leopold Island, Canada (1975-1993)

Levels of PCB congeners and PCDD/Fs (ng/g lw) in Lake Storvindeln pike muscle between 1968 and 1992

Levels of PCB congeners and PCDD/Fs (ng/g lw) in Lake Storvindeln pike muscle between 1968 and 1992
Levels of PCB congeners and PCDD/Fs (ng/g lw) in Lake Storvindeln pike muscle between 1968 and 1992

Temporal trends of sum-PCB and sum-DDT in blubber of female ringed seals from Holman Island in the western Canadian Arctic Vertical bars represent one SD

Temporal trends of sum-PCB and sum-DDT in blubber of female ringed seals from Holman Island in the western Canadian Arctic Vertical bars represent one SD
Temporal trends of sum-PCB and sum-DDT in blubber of female ringed seals from Holman Island in the western Canadian Arctic Vertical bars represent one SD

Trends in sum-PCB, sum-DDT, sum-CHL, and toxaphene over a ten year period (20 years for DDT in the Mackenzie Delta) for male narwhal and beluga blubber samples from the Canadian Arctic (N=8-26)

Trends in sum-PCB, sum-DDT, sum-CHL, and toxaphene over a ten year period (20 years for DDT in the Mackenzie Delta) for male narwhal and beluga blubber samples from the Canadian Arctic (N=8-26)
Trends in sum-PCB, sum-DDT, sum-CHL, and toxaphene over a ten year period (20 years for DDT in the Mackenzie Delta) for male narwhal and beluga blubber samples from the Canadian Arctic (N=8-26)

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 [..]
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,

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 [..]
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,

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)
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 [..]
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,

River break-up in the Arctic

Mean dates of river break-up in the Arctic; month number in Roman numerals
River break-up in the Arctic

River freeze-up in the Arctic

Mean dates of river freeze-up in the Arctic
River freeze-up in the Arctic

delta-15 Nitrogen isotope ratios versus Toxaphene, DDT, and HCH for fish and invertebrates from Lake Laberge, Yukon Territory

delta-15 Nitrogen isotope ratios versus Toxaphene, DDT, and HCH for fish and invertebrates from Lake Laberge, Yukon Territory
delta-15 Nitrogen isotope ratios versus Toxaphene, DDT, and HCH for fish and invertebrates from Lake Laberge, Yukon Territory

alpha-HCH (ng/L) in seawater: an illustration of the cold condensation effect

alpha-HCH (ng/L) in seawater: an illustration of the cold condensation effect
alpha-HCH (ng/L) in seawater: an illustration of the cold condensation effect



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