You searched for: “aeorplankton”
aeroplankton (s) (noun), aeorplankton (pl)
An organism or a substance that is carried by air; aerial plankton: Aeroplankton, such as bacterium, pollen grain, etc., are suspended freely in the air and are dispersed by wind currents.
Aeroplankton is collective name for all the forms of minute or tiny organic life drifting in the air. It is also an equivalent of oceanic plankton.