How does 85 decibels compare to the sound of birds chirping?

... dB levels? Sounds at or below 70 dB are considered safe for your hearing. That's the sound of a normal conversation between two people. Sounds at 80 or 85 dB ... Idling diesel trucks emit noise at 85 dBA (decibels) measured at a distance of 50 feet. In general, noise decreases 6 decibels for every doubling of distance ... At 80 dB(A) there is no material risk in the vast majority of individuals. At 85 dB(A) there is a marginal risk with susceptible individuals accruing a ... is exposed to noise 85 decibels or greater. 5.1.4. All locations and equipment that exceed the 85-decibel limit shall be marked to notify employees of the ... Most otologists agree that continual exposure to a noise that is 85 decibels or louder in intensity is dangerous. Oct 8, 2021 ... Joshua Leeds, the president of BioAcoustic Research Inc., would say that anything above 85 decibels (dB) is too loud for dogs to hear as these ... Natural Ocean sounds. Wind and waves, ~85 dB. Earthquake, 95-135 dB. Harp seal call, 130-140 dB. Being exposed to noise levels higher than 85 decibels (dB) for long periods can damage your hearing. Most lab noise is well below this level, but it can ... Employers must conduct noise monitoring whenever they suspect that employees' exposures equal or exceed an 8-hour time-weighted average of 85 decibels. The ... At 85 A-weighted decibels time-weighted average exposure, an employer must implement a hearing conservation program, including serial audiograms and provision ...