# Quick Answer: How Loud Is Too Loud How Long Is Too Long?

## How loud is a nuke?

A typical US nuclear bomb is around 210 decibels if you are 250 feet away from the blast.

150 decibels is enough to burst your eardrums..

## How loud is 140 decibels?

Comparative Examples of Noise LevelsNoise SourceDecibel LevelDecibel EffectAircraft carrier deck140Military jet aircraft take-off from aircraft carrier with afterburner at 50 ft (130 dB).130Thunderclap, chain saw. Oxygen torch (121 dB).120Painful. 32 times as loud as 70 dB.12 more rows

## How long can you listen to 120 dB?

b) about 95 to 100 decibels. c) between 1 to 5 minutes. c) about 105 to 120 decibels. d) between 1 to 30 seconds.

## What is the quietest place on Earth?

Orfield LaboratoriesAccording to the Guinness Book of Records, the anechoic chamber at Orfield Laboratories in Minneapolis is the quietest place in the world, with a background noise reading of –9.4 decibels.

## How loud can a human yell?

Human screams can be quite loud, possibly exceeding 100 dB (as of March 2019, the world record is 129 dB!) —but you probably want to avoid that because screams that loud can hurt your ears! You should also have found sound levels drop off quickly as you get farther from the source.

## Can a sperm whale kill a human with sound?

In air, the sperm whale would still be extremely loud, but significantly less so — 174 decibels. That’s roughly equivalent to the decibel levels measured at the closest barometer, 100 miles away from the Krakatoa eruption, and is loud enough to rupture people’s ear drums.

## How loud is too loud for a baby?

If a toy sounds loud to an adult, it is much louder to a baby or child. Toys should not exceed 80 to 85 decibels (e.g., alarm clock).

## How long can you be exposed to loud noise?

Sounds at 85 dBA can lead to hearing loss if you listen to them for more than 8 hours at a time. Sounds over 85 dBa can damage your hearing faster. The safe listening time is cut in half for every 3-dB rise in noise levels over 85 dBA.

## What level of noise is harmful?

Normal conversation is about 60 dB, a lawn mower is about 90 dB, and a loud rock concert is about 120 dB. In general, sounds above 85 are harmful, depending on how long and how often you are exposed to them and whether you wear hearing protection, such as earplugs or earmuffs.

## What does 85 decibels sound like?

Topic OverviewNoiseAverage decibels (dB)Office noise, inside car at 60 mph70Vacuum cleaner, average radio75Heavy traffic, window air conditioner, noisy restaurant, power lawn mower80–89 (sounds above 85 dB are harmful)Subway, shouted conversation90–959 more rows

## How loud is too loud for TV?

Common Sources of Noise and Decibel LevelsEveryday Sounds and NoisesAverage Sound Level (measured in decibels)The maximum volume level for personal listening devices; a very loud radio, stereo, or television; and loud entertainment venues (such as nightclubs, bars, and rock concerts)105–11016 more rows

## How many decibels is too loud at night?

40 decibelsAccording to these guidelines, annual average night exposure should not exceed 40 decibels (dB), corresponding to the sound from a quiet street in a residential area. Persons exposed to higher levels over the year can suffer mild health effects, such as sleep disturbance and insomnia.

## What is the safe noise level for 8 hours?

90 dBAWith noise, OSHA’s permissible exposure limit (PEL) is 90 dBA for all workers for an 8 hour day.

## How many decibels is a quiet room?

Example of decibelsDECIBELSOUNDEXAMPLE30Very quietWhispering40Living room, quiet classroom50Limited soundRefrigerator working, car driving past55Percolating coffee-maker20 more rows

## How many decibels can kill a human?

German researcher Jurgen Altmann showed that a blast of 210 decibels or more affects the inner organs — the lungs — and could cause internal injury that could lead to death. A blast will impact the body, and would do so very violently.

## How loud is too loud?

Decibel Level​ The louder the sound, the more damage it can cause to your hearing, and the quicker this damage will occur. Sound is measured in units called decibels (dB), just as height is measured in feet or inches. … Any sound at or above 85 dBA is more likely to damage your hearing over time.

## What’s the loudest sound ever?

4. The Krakatoa volcanic eruption: Not only did it cause serious damage to the island, the eruption of Krakatoa in 1883 created the loudest sound ever reported at 180 dB. It was so loud it was heard 3,000 miles (5,000 km) away. 3.

## How loud is 92 decibels?

Normal conversation is about 60 dB, a lawn mower is about 90 dB, and a loud rock concert is about 120 dB. In general, sounds above 85 are harmful, depending on how long and how often you are exposed to them and whether you wear hearing protection, such as earplugs or earmuffs.

## What is the loudest natural sound on earth?

KrakatoaThe Krakatoa explosion registered 172 decibels at 100 miles from the source. This is so astonishingly loud, that it’s inching up against the limits of what we mean by “sound.”

## What is the maximum length of exposure to sound levels at 100 decibels?

2 hoursHere’s an example: OSHA allows 8 hours of exposure to 90 dBA but only 2 hours of exposure to 100 dBA sound levels. NIOSH would recommend limiting the 8 hour exposure to less than 85 dBA. At 100 dBA, NIOSH recommends less than 15 minutes of exposure per day.

## How loud is a supernova?

If, hypothetically, there were air filling the universe, then suddenly things would get very loud. Forget the terrifying concept of the sound of a supernova—just the dumb sun sitting there hanging out would ring in at an astounding 290 dB.