Sunday, November 18, 2012

Sound levels (dB) and relative loudness of typical noise sources in indoor and outdoor environments

The following is Table B.1 from Federal Agency Review of Selected Airport Noise Analysis Issues [page B-6] published by the Federal Interagency Committee on Noise (August 1992) Source of the information is attributed to a publication titled Outdoor Noise and the Metropolitan Environment by M.C. Branch, et al. Los Angeles California: Department of City Planning, City of Los Angeles, 1970
dB(A)Overall LevelCommunity Noise Levels (Outdoors)Home and Industry Noise LevelsSubjective Loudness (Relative to 70 dB)
120Uncomfortably LoudMilitary jet aircraft take-off from aircraft carrier with afterburner at 50 ft . . . 130 dBOxygen Torch . . . 121 dB32 times as loud
110Turbo-fan aircraft at takeoff power at 200 ft . . . 118 dBRiveting machine . . . 110 dB Rock band . . . 108 - 114 dB16 times as loud
100Very loudBoeing 707 or DC-8 aircraft at one nautical mile (6080 ft) before landing . . . 106 dB Jet flyover at 1000 feet . . . 103 dB
Bell J-2A helicopter at 100 ft . . . 100 dB
8 times as loud
90Boeing 737 or DC-9 aircraft at one nautical mile (6080 ft) before landing . . . 97 dB Power mower . . . 96 dB
Motorcycle at 25 ft . . . 90 dB
Newspaper press . . . 97 dB4 times as loud
80Car wash at 20 ft . . . 89 dB Propeller plane flyover at 1000 ft . . . 88 dB
Diesel truck 40 mph at 50 ft . . . 84 dB
Diesel train 45 mph at 100 ft . . . 83 dB
Food blender . . . 88 dB Milling machine . . . 85 dB
Garbage disposal . . . 80 dB
2 times as loud

No comments:

Post a Comment