The rate of mass transfer of carbon dioxide across the sea surface was investigated in the laboratory and at sea. In the laboratory, radioactive tracer techniques were employed using high specific activity C14O2. The equilibrium distribution of CO2 is not affected greatly and the mass transfer measured is very nearly the exchange coefficient....
Sugiura, Yoshio, Edward R. Ibert, and Donald W. Hood. 1963. "Mass transfer of carbon dioxide across sea surfaces." Journal of Marine Research 21, (1). https://elischolar.library.yale.edu/journal_of_marine_research/990