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

@article{Blais2001MeltingGA,
  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 C G Muir and Michael D. Sharp and David Donald and Michael Lafreniere and Eric Braekevelt and William M J Strachan},
  journal={Ambio},
  year={2001},
  volume={30 7},
  pages={410-5}
}
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