your missing one crucial element... heavy duty ear plugs, haha. I was curious to see it your ears would explode at 150 dBs, but you got a little way to go:
Weakest sound heard 0dB
Normal conversation (3-5') 60-70dB
Telephone dial tone 80dB
City Traffic (inside car) 85dB
Train whistle at 500' 90dB
Subway train at 200' 95dB
Level at which sustained exposure may result in hearing loss 90 - 95dB -- highlight this one
Power mower 107dB
Power saw 110dB
Pain begins 125dB ---this one is important too
Pneumatic riveter at 4' 125dB
Jet engine at 100' 140dB
Death of hearing tissue 180dB
Loudest sound possible 194dB