lead paint. there's still a ton of it around. most of it is covered by other paint, but when it chips, you still get exposure (and kids absolutely will eat pain

lead paint. there's still a ton of it around. most of it is covered by other paint, but when it chips, you still get exposure (and kids absolutely will eat paint flakes). also fun tip: if you want to get out of a lease early, you can ask your landlord to do a test for lead paint. if the building is >50 years old, the landlord is unlikely to want to take the risk of $10000s of renovation or having to disclose the lead to future tenants