Spring Melt and the Redistribution of Organochlorine Pesticides in the Sea-Ice Environment: A Comparative Study between Arctic and Antarctic Regions
- Bigot, Marie
- Hawker, Darryl
- Cropp, Roger
- Muir, D. C.
- Jensen, B.
- Bossi, R.
- Bengtson Nash, Susan
DOIAbstract
Complementary sampling of air, snow, sea-ice, and seawater for a range of organochlorine pesticides (OCPs) was undertaken through the early stages of respective spring sea-ice melting at coastal sites in northeast Greenland and eastern Antarctica to investigate OCP concentrations and redistribution during this time. Mean concentrations in seawater, sea-ice and snow were generally greater at the Arctic site. For example, α-HCH was found to have the largest concentrations of all analytes in Arctic seawater and sea-ice meltwater samples (224–253 and 34.7–48.2 pg·L–1 respectively compared to 1.0–1.3 and <0.63 pg·L–1 respectively for Antarctic samples). Differences in atmospheric samples were generally not as pronounced however. Findings suggest...
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