[acomjean]

Asbestos has to be in a “friable” form for it to be bad. The particles are so small they can get into deep your lungs.

I actually was at a landfill expansion project where a backhoe digging down through the trash hit some bags labeled asbestos. I’m glad it was raining. Also worked in a building with asbestos in the floor tiles. Fine when not disturbed, but anytime they had to remove them it was a production.

https://ehs.oregonstate.edu/asb-when

https://www.fs.fed.us/eng/toolbox/haz/haz07b.htm

[jliptzin]

In high school I helped a friend rip up the floor tiles in his basement which were probably from the 50s. Years later I realized I could have been exposed to asbestos, is there any way to know whether asbestos would have been in the particular tiles I was ripping up?

[acomjean]

I don't have much to add, but felt I should respond.

I feel like the risk is probably less than you think (the facilities people I worked with thought it was overkill for the tiles with a small % of asbestos). but its not zero. As someone who might have been exposed (was in a vacinity), its hard because you can never really know. Also there might have been other instances where exposure might have happened and you don't know (my high school was rebuilt recently because it wasn't 'up to code" when I was going there.

[jliptzin]

Thank you

[soperj]

You can get the tiles tested if you still have access to any of them.