Melting glaciers: a major source of persistent organochlorines to subalpine Bow Lake in Banff National Park, Canada.

  title={Melting glaciers: a major source of persistent organochlorines to subalpine Bow Lake in Banff National Park, Canada.},
  author={Jules M Blais and David W. Schindler and Derek Charles Gordon Muir and Martin Sharp and David Keith Donald and Michael Lafreniere and Eric Braekevelt and William M I Strachan},
  volume={30 7},
Organochlorine pesticides and polychlorinated biphenyls (PCBs) are ubiquitous and persistent in the environment. They are known to concentrate in cold environments as a result of progressive evaporation from warm regions, and condensation in colder regions. In this study we show that melting glaciers supply 50 to 97% of the organochlorine inputs to a subalpine lake in Alberta, Canada, while contributing 73% of input water. Tritium analyses indicated that during the mid- to late summer warm… CONTINUE READING

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