risk for flying and risk of inhaling

Hi, since most particles are carried by the jet stream and floating up in the air, is it more likely to inhale particles or get more radiation exposure by flying commercial jets?

Also, for people in North America, is it likely to inhale in any radioactive particles from the air?

of course, we are already

of course, we are already inhaling this stuff 24/7 since 3/18 that is why we are all so worried. I was also wondering whether flying with a plane would actually result in a greater exposure, I read somewhere the particles get sucked into the cabin. that is why I am wondering mayb we should all wear a mask in the plane?

I would also be interested

I would also be interested in knowing whether being in a plane increases the exposure? Thanks.