I'm having hardwood floors put in throughout the first floor of my home and I'm doing the demolition. Our house was built in 1977 and had plywood put on the subfloor with vinyl sheeting in the kitchen and foyer. Later, but no telling how far later, a previous owner laid another layer of plywood (very thin) then stapled metal mesh screening to it and poured some sort of cement on top of which they laid 1/4" tile.
Upon tearing all this up (the kitchen actually has 4 different floors on it) I didn't initial wear a mask and then realized the dust was very heavy. Now, of course, I have something stuck in my throat today that has me trying to cough it up. I'l be wearing a mask from here on in until I finish but now I'm wondering if all I may have ingested is basically sand (cement) or if that material might include more harmful ingredients like asbestos. I can't imagine that circa 1980 or later that anyone would use asbestos in cement but perhaps as an insulator it might have been done. What I'm asking is, what are the odds of something harmful versus having just ingested standard cement dust (not that it's good for you)?