Abstract
ABSTRACT Two experimental oil spill studies designed to assess the comparative short and long term fates and effects of chemically dispersed and untreated nearshore discharges in the Arctic were undertaken as part of the Baffin Island Oil Spill (BIOS) Project. The fates of oil in the water column, in subtidal and beach sediments, and in five species of filter- and deposit-feeding animals were investigated. Analytical results indicate that the discharge of the chemically dispersed oil caused a large but short-lived chemical impact on the water column (up to 50 ppm), a significant initial bio accumulation of oil, and little sediment impact. In contrast, the untreated oil, allowed to beach, did not have a significant water column impact, but did result in a large scale landfall, continual long term erosion of oil off the beach, and increasing oil levels in subtidal sediments and deposit-feeding animals.
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