Decibel Level Comparison Chart - Yale University

Decibel Level Comparison Chart Environmental Noise dBA. Jet engine at 100' 140. 125. Pain Begins Pneumatic chipper at ear 120. Chain saw at 3' 110. Power mower 107. Subway train at 200' 95. Walkman on 5/10 94. Level at which sustained 80-90. exposure may result in hearing loss City Traffic 85. Telephone dial tone 80. Chamber music, in a small 75-85. auditorium Vacuum cleaner 75. Normal conversation 60-70. Business Office 60-65. Household refrigerator 55. Suburban area at night 40. Whisper 25. Quiet natural area with no wind 20. Threshold of hearing 0. Note: dBA = Decibels, A weight

Note: dBA = Decibels, A weighted Decibel Level Comparison Chart Environmental Noise dBA Jet engine at 100’ 140 Pain Begins 125 Pneumatic chipper at ear 120

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