Air-sea diffusion flux is the main source of polychlorinated biphenyls (PCBs) in the open ocean. The oceanic biological pump, current advection, and eddy diffusion affect the distribution of PCBs in the ocean surface and thus affect the air-sea diffusion flux.
Click here for original story, The Kuroshio current regulates the air-sea exchange of PCBs in the open ocean: Study
Source: Phys.org