Abstract

Increasing interest in the chemistry, biology, and physics of the air-water interface has developed in the past decade. Research on natural and man-made surface films and other chemical accumulations near this phase boundary has been engendered by a realization that interfacial chemistry plays an important role in the following timely oceanographic problems. (1) Organic surface films modify air-water interfacial properties and hence influence waves, air-water transport processes, and other physical boundary layer properties. Consequently, ocean operations such as shipping or offshore industrial production influence and are in turn affected by the nature of the air-sea interface. (2) Natural organic sea surface films or inadvertent petroleum spills act as accumulation sites for lipophilic pollutants such as chlorinated hydrocarbons or organic forms of heavy metals. (3) Organic surface films have a strong influence on the exchange of liquids, solids and gases between water and air. However, the magnitude and exact nature of this role have not been well characterized by ‘in situ’ experimentation.

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