"Dr Natalie Welden, who led the research, said the findings had major implications for any uncovered food.
'Having food exposed to particles in the air for an extended period will result in a higher amount of plastic,' she added.
'Organisms that are exposed to air and are either not cleaned or rinsed as part of the packing process are exposed. The pool of plastics that's out there forming airborne particles is huge.
'It's a symptom of endemic plastic use throughout our culture as a whole.'"