I have seen no posts on this thread denying air borne allergens in general. This thread is specifically about 'nut dust'. No one is denying that nut allergies exist, or that any posters have actually had a reaction, yes even on an airplane. The query is whether or not 'nut dust' caused the reaction on airplanes. Its all just speculation. No one has posted a study to show this is even possible, whilst there is a lot of information to say this it is not possible.
I know eyes can swell up in contact to airborne allergens, and the little toddler who reacted to the nuts on the plane in the news a few days ago that I linked to
And the logical conclusion is that the toddler touched or ingested nuts. I looked at 'no nuts moms group' which documents hundreds of people who have died from nut allergies recently. Yet not a single one died from nut dust on an airplane. I wonder why that is?
FYI Google Scholar is very very good at searching factual academic studies.