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contaminantsorganic contaminants
physical sciences
snow
deposition
atmospheric sciences
precipitation
arctic ecosystems
pollution
ice cap
hydrology
3 Dossier(s) trouvé(s) pour le chercheur principal "Gregor, Dennis" (les projets pluriannuels sont regroupés):
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Contaminant deposition measurements in precipitation in the NWT
chercheur principal: Gregor, Dennis J.
Année(s) de permis: 1994 1993
Résumé: There is only limited information on contaminant trends in arctic ecosystems. This long-term study is examining the amounts of contaminants present in arctic ice caps. By taking core samples from ice caps, the researchers are able to measure the levels of contaminants that have been deposited by precipitation over many years. This study will also improve our understanding of the levels of conta...
Année(s) de permis: 1994 1993
Résumé: There is only limited information on contaminant trends in arctic ecosystems. This long-term study is examining the amounts of contaminants present in arctic ice caps. By taking core samples from ice caps, the researchers are able to measure the levels of contaminants that have been deposited by precipitation over many years. This study will also improve our understanding of the levels of conta...
Current contaminant deposition measurements in precipitation throughout the NWT
chercheur principal: Gregor, Dennis J.
Année(s) de permis: 1993
Résumé: Contaminants are carried in the air to the arctic during the winter when large-scale wind movements bring these contaminants from industrialized locations in North America, Europe and Asia to the north. Snow can collect these compounds from the air and bring them to the ground where they can accumulate. Thus, it is important to study the amount of contaminants in snow to determine the types and ...
Année(s) de permis: 1993
Résumé: Contaminants are carried in the air to the arctic during the winter when large-scale wind movements bring these contaminants from industrialized locations in North America, Europe and Asia to the north. Snow can collect these compounds from the air and bring them to the ground where they can accumulate. Thus, it is important to study the amount of contaminants in snow to determine the types and ...
Trace Organic Contaminants in Arctic Snow and Aquatic Ecosystems
chercheur principal: Gregor, Dennis J.
Année(s) de permis: 1992 1991 1991 1990
Résumé: Snow samples will be collected from approximately 30 sites across the NWT and Yukon in the spring of the year. This annual snow pack sample will allow an estimate of the quantity of organic contaminants that have been deposited over the winter season. To better understand the fate of these contaminants in the High Arctic, the researchers will undertake an intensive small basin study on Cornwallis ...
Année(s) de permis: 1992 1991 1991 1990
Résumé: Snow samples will be collected from approximately 30 sites across the NWT and Yukon in the spring of the year. This annual snow pack sample will allow an estimate of the quantity of organic contaminants that have been deposited over the winter season. To better understand the fate of these contaminants in the High Arctic, the researchers will undertake an intensive small basin study on Cornwallis ...
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