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Noise Limits

NOISE EXPOSURE TIME LIMITATIONS
Noise Level
Exposure Limits
90 dB
8 hrs
95 dB
4 hrs
100 dB
2 hours
105 dB
1 hour
110 dB
30 minutes
115 dB
15 minutes
GUNFIRE NOISE LEVELS
156 dB
.38 Special, 12 gauge 26" barrel
164 dB
.44 Mag
170 dB .338 Rifle with muzzel brake
ENVIRONMENTAL NOISE LEVELS
140 dB
Space rocket at blastoff
130 dB
Jackhammer
120 dB
Ambulance siren, Amplified rock band, Thunder clap
115 dB
Sandblasting
110 dB
Woodworking shop
100 dB
Pneumatic drill, Chainsaw
90 dB
Lawn mower, Disco dance music, Shop tools, Truck traffic, Noisy restaurant
80 dB
City traffic, Loud music from radio
75 dB
Kitchen appliances
70 dB
Crowded restaurant
65 dB
Conversation speech
60 dB
Sewing machine, Typewriter
50 dB
Average home interior
40 dB
Quiet residential community
30 dB
Whisper at five feet
20 dB
Leaves rustling in a breeze
10 dB
Normal breathing
0 dB
Faintest sound heard by a human ear

 

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