I live in a townhome and water leaked from the 2nd floor to the ground floor and caused water damage to the ceiling drywall on the lower floor. I would like to fix it myself. According to this, there could be asbestos in the drywall. My home was built in 1980. How likely that there is asbestos in the drywall? The home is in Tulsa, Oklahoma.
Asbestos in drywall was banned and regulated in 1977. There would be an extremely low low chance that yours would contain asbestos.
There is a decent chance of it being in your drywall. But keep in mind it's never been a problem for short term exposure. Asbestosis and mesothelioma are considered occupational hazards for people working in the field of mining asbestos and production of asbestos containing products. The scare tactics are a result of the asbestos abatement companies. It's in all kinds of products being manufactured today.
The United States remains one of the few developed countries to not ban asbestos which is legal and still widely used in such commonly used products as clothing, pipeline wraps, vinyl floor tiles, millboards, cement pipes, disk brake pads, gaskets and roof coatings. Wikipedia
The bottom line is, wear a mask if things get dusty. You are made to breath air. Who knows maybe there is something else in the drywall that is worse than asbestos. Better safe than sorry.