| Sound |
|
Noise Level (dB) |
Effect |
|
|
|
|
|
|
|
|
|
|
|
| Boom Cars |
|
145 |
|
|
|
|
|
| Jet Engines (Near) |
|
140 |
|
|
|
|
|
| Shotgun Firing |
|
130 |
|
|
|
|
|
| Jet Takeoff (100-200 ft.) |
|
130 |
|
|
|
|
|
| Rock Concerts (Varies) |
|
110-140 |
|
Threshold
of pain (125 dB) |
|
| Oxygen Torch |
|
121 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Discotheque/Boom Box |
|
120 |
|
Threshold
of sensation (120 dB) |
|
| Thunderclap (Near) |
|
120 |
|
|
|
|
|
| Stereos (Over 100 Watts) |
|
110-125 |
|
|
|
|
|
| Symphony Orchestra |
|
110 |
|
|
|
|
|
| Power Saw (Chain Saw) |
|
110 |
|
Regular
exposure of more than 1 min. |
| Pneumatic Drill/Jackhammer |
|
110 |
|
risks
permanent hearing loss (over 100 dB) |
| Snowmobile |
|
105 |
|
|
|
|
|
| Jet Flyover (1000 ft.) |
|
103 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Electric Furnace Area |
|
100 |
|
|
|
|
|
| Garbage Truck/Cement Mixer |
|
100 |
|
|
|
|
|
| Farm Tractor |
|
98 |
|
|
|
|
|
| Newspaper Press |
|
97 |
|
|
|
|
|
| Subway, Motorcycle (25 ft.) |
|
88 |
|
Very
annoying |
|
|
|
|
|
|
|
|
|
|
| Lawnmower, Food Blender |
|
85-90 |
|
Level at
which hearing damage (8 hrs.) |
| Recreational Vehicles, TV |
|
70-90 |
|
begins (85
dB) |
|
|
| Diesel Truck (40 mph, 50 ft.) |
|
84 |
|
|
|
|
|
| Average City Traffic Noise |
|
81 |
|
Annoying;
interferes with conversation; constant |
| Garbage Disposal |
|
80 |
|
exposure
may cause damage |
|
| Washing Machine |
|
78 |
|
|
|
|
|
| Dishwasher |
|
15 |
|
|
|
|
|
| Vacuum Cleaner, Hair Dryer |
|
70 |
|
Intrusive;
interferes with telephone conversation |
| Normal Conversation |
|
50-65 |
|
|
|
|
|
| Quiet Office |
|
50-60 |
|
Comfortable
(under 60 dB) |
|
|
|
|
|
|
|
|
|
| Refrigerator Humming |
|
40 |
|
|
|
|
|
| Whisper |
|
30 |
|
Very quiet |
|
|
|
| Broadcast Studio |
|
20 |
|
|
|
|
|
| Rustling Leaves |
|
10 |
|
Just audible |
|
|
|
| Normal Breathing |
|
0 |
|
Threshold
of normal hearing (1000-4000 Hz) |
|
|
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