Environment and Climate Change Canada

This dataset contains the stable nitrogen (δ15N), carbon (δ13C), oxygen (δ18O), and hydrogen (δ2H) isotope data from 1123 samples of underfur hair of adult polar bears (Ursus maritimus) sampled between 1992 to 2017 from subpopulation boundaries (zone) in the Canadian Arctic and sub-Arctic....

Long-term freshwater quality monitoring data for over five sites in the Keewatin - Southern Baffin Island Basin for the past 15 years or longer for nutrients, metals, major ions, and other physical-chemical variables are included in this dataset. Monitoring is conducted by Environment and Climate...

The Ice Thickness Program Collection contains ice thickness and snow depth measurements for 195 sites. Sites such as Eureka and Resolute have ice thickness records that go as far back as 1947. Record length varies from station to station with some of the Arctic stations exceeding 50 years of...

Recent and historical deposition of mercury (Hg) are examined over a broad geographic area from southwestern Northwest Territories to Labrador and from the U.S. Northeast to northern Ellesmere Island using dated sediment cores from 50 lakes (18 in midlatitudes (41-50 degrees North), 14 subarctic...

Long-term freshwater quality monitoring data for over 10 sites in the Arctic Coast - Islands Basin for the past 15 years or longer for nutrients, metals, major ions, and other physical-chemical variables are included in this dataset. Monitoring is conducted by Environment and Climate Change...

The Ice Thickness Program Collection contains ice thickness and snow depth measurements for 11 sites. Measurements are taken at approximately the same location every year on a weekly basis, starting after freeze-up when the ice is safe to walk on, and continuing until break-up or when the ice...

Long-term freshwater quality monitoring data for over 19 sites in the Lower Mackenzie River Basin for the past 15 years or longer for nutrients, metals, major ions, and other physical-chemical variables are included in this dataset. Monitoring is conducted by Environment and Climate Change Canada...

This dataset contains 2005 concentrations of total mercury (THg), gaseous elemental mercury (GEM), methylated mercury, dimethyl mercury (DMHg) in the water column of the Canadian Arctic. Mercury in the Arctic is an important environmental and human health issue. The reliance of Northern peoples...

Ringed seals (Phoca hispida) have been used as bioindicator species of environmental contamination in Canada since the 1970s. In the present study, seals were harvested during subsistence hunts in four regions of the Canadian Arctic: Beaufort Sea, Arctic Archipelago, Hudson Bay, and coastal...

This dataset contains concentrations of perfluoroalkyl substances (PFAS) in seawater sampled in various locations in the Arctic ranging from 2005-2008. Perfluoroalkyl acids (PFAAs) are ubiquitous contaminants of marine, freshwater and terrestrial environments, including remote arctic wildlife....

The integrated pan-Arctic snow melt onset dataset was generated by combining active and passive microwave satellite derived estimates for northern high latitude land surface, ice caps, large lakes, and sea ice (Wang et al., 2011). This dataset allows snow melt dynamics to be examined in a full...

The Ice Thickness Program Collection contains ice thickness and snow depth measurements for 195 sites. Sites such as Eureka and Resolute have ice thickness records that go as far back as 1947. Record length varies from station to station with some of the Arctic stations exceeding 50 years of...

The atmospheric monitoring subcomponent of the Northern Contaminants Program (NCP) studies long-range transport of anthropogenic organic pollutants in air (AOPA), mercury, and chemicals of emerging arctic concern from around the globe. This subcomponent includes three NCP Core Monitoring...

Concentrations of alternative flame retardants and polybrominated diphenyl ethers (PBDEs) were analyzed in ringed seal (Phoca hispida) blubber collected across the Canadian Arctic during subsistence hunts between 1998 and 2013. The presence of flame retardants in ringed seals suggests their...