Renovation is a top exposure risk
This is a real concern, because renovation and repairs are among the most common ways asbestos gets disturbed and released into the air. In older buildings, cutting, sanding, or tearing out materials can send fibers throughout a unit.
California rules require that work likely to disturb asbestos be handled carefully, generally by qualified professionals following proper containment procedures — not casual demolition. Landlords are also expected to warn tenants and take precautions so that renovation does not expose them to a hazard.
If your landlord is planning or doing work in an older building, you can ask whether the materials have been checked for asbestos and what precautions are being taken. If you see dusty demolition of suspect materials without containment, that is worth documenting.
You have a right not to be exposed to a dangerous condition created by unsafe renovation. If you are worried that work in your building is disturbing asbestos without proper protection, a free, confidential review can explain your rights and options.
This is general information about California tenant rights, not legal advice. Every situation is different.