Fact Sheet


Decibels (Ref: 20 microPa )

 

140

Threshold of Pain

Jet Take Off (60 m)

130

 

 

120

Rock Concert, Pop Group 
Disco Dance Floor

INDY Race Car (30 m)

110

 


Railroad Locomotive at 100 km/h (15 m)

100

Arena During Playoff Hockey
(Max. Levels)

Tractor Trailer at 100 km/h (15 m)

90

 

Inside Sports Car (80 km/h)

80

Pneumatic Drill (15 m)

Loud Ringing Alarm Clock (1 m)

Subway Train(15 m), Freight Train (30 m)Well Projected Speech (1 m)

70

Highway 401, 50 m From Closest Lane

Large Store, Shopping Mall

60

Microwave Oven (0.5 m)
Large Open Office

 

50

Min. Levels - Residential Area, Downtown @ Night

1.8 MW Wind Turbine @ 500 m 
Bedroom No TV or HiFi

40

Min. Levels - Suburban Residential Areas @ Night

Soft Whisper (1.5 m)

30

Broadcast Studio

Recording Studio

20

Concert Hall

 

10

 

Threshold of Hearing

0

 

Typical A-Weighted Sound Pressure Levels of Common Sounds