It all depends on the state it's in. Solid house shingles are ok, the fiber cotton
looking stuff can cause problems.... Most of it is through long term workplace
exposure..... Not to worry though, it is still mined mostly in Canada, Russia,
and a few more countries where it still is an economic driver, products are sold
to third world countries to make corrugated roof panels mostly sold in India.....
Amazing that information about this stuff just don't put it off limits worldwide....
http://www.asbestos.com/mesothelioma/worldwide.php
I bet in some cases it was used as a heat barrier for the wood cabinet, or plastic.
Also for vibration. I bet you could replace it with a newer material, maybe some
floor linoleum, like the roll stuff. Maybe laminate a piece of foil over the top....
.