Police and emergency responder sirens are about 120 dB at 1 meter. The duration of exposure is similar to an Amber Alert tone. I don’t see people suing cities for ruptured eardrums from exposure to sirens.
Long-term exposure over 85 db can cause hearing loss, but rupturing an eardrum takes a lot higher intensity - 165+ dB. That’s a shot from a large caliber weapon from a few feet away. I know it can rupture an eardrum because it ruptured mine (shooting partner emptied his 50 cal Desert Eagle next to me before I got my protection on).