In addition, exposure to impulse noise (abrupt high intensity sounds of short duration [e.g., whistles, horns, cannon blasts, fireworks]) should never exceed a peak sound pressure of 140 dB peak in adults, and 120 dB in children.
Sounds above 150 dB have the potential of causing life-threatening issues. Sounds between 170-200 dB are so intense that they can cause lethal issues like pulmonary embolisms, pulmonary contusions, or even burst lungs. As for exploding heads, you can expect that from sounds above 240 dB.