2 Asbestos

Asbestos = Popcorn Ceiling?
I’m confused with all the stuff I’ve read about popcorn ceilings and asbestos. Can someone please help me:
1. What is the percent chance that a popcorn ceiling contains asbestos if it was made during the 1970’s?
2. Which is better: Remove, leave as is, or cover it?
3. How and when can one inhale this asbestos?
If it was a new house built in the 1970s and the ‘popcorn’ was sprayed or rolled on the new ‘drywall’ gypsum board, there is no asbestos…. The product used did not contain asbestos.
If the product was used in an older house, there may be asbestos in the underlying ceiling board.
Spodden Valley, Rochdale’s asbestos scandal. (Part 2)
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