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ReferencesReferences• OPNAVINST 5100.23 series• 29CFR1910.95
(Codes of Federal Regulations)
• OPNAVINST 5100.23 series• 29CFR1910.95
(Codes of Federal Regulations)
Why Hearing Conservation?Why Hearing Conservation?
Hazardous noise levels are common in industrial areas
because of machinery, motors and many other industrial
operations. Permanent hearing loss from continuous
noise exposure is preventable.
Hazardous noise levels are common in industrial areas
because of machinery, motors and many other industrial
operations. Permanent hearing loss from continuous
noise exposure is preventable.
Why Hearing Conservation?Why Hearing Conservation? The Navy has a program to ensure noise hazardous areas are identified; hazardous noise is eliminated, where
possible; hazards are posted; personnel are provided with
protective equipment; and testing is conducted to monitor program
compliance.
The Navy has a program to ensure noise hazardous areas are identified; hazardous noise is eliminated, where
possible; hazards are posted; personnel are provided with
protective equipment; and testing is conducted to monitor program
compliance.
ExposureExposure1. Exposure to high levels of continuous noise or sudden, impact noise can cause permanent hearing loss.
1. Exposure to high levels of continuous noise or sudden, impact noise can cause permanent hearing loss.
2. Hearing loss from continuous noise is cumulative over time, and may not become noticeably severe for many years. Once lost, that hearing cannot be recovered.
2. Hearing loss from continuous noise is cumulative over time, and may not become noticeably severe for many years. Once lost, that hearing cannot be recovered.
ExposureExposure3. Hearing loss from continuous noise damages delicate hair-like cells in the inner ear. The more damaged cells you have, the more hearing loss. These cells NEVER heal.
3. Hearing loss from continuous noise damages delicate hair-like cells in the inner ear. The more damaged cells you have, the more hearing loss. These cells NEVER heal.
ExposureExposure4. Hearing losses are preventable. Hearing losses also make up the majority of all compensation claims from occupational causes.
4. Hearing losses are preventable. Hearing losses also make up the majority of all compensation claims from occupational causes.
ExposureExposure5. The Navy’s program is designed to “conserve” or save your hearing, and prevent permanent hearing loss.
5. The Navy’s program is designed to “conserve” or save your hearing, and prevent permanent hearing loss.
If you are exposed to noise levels greater than 84dBA, you will be entered into a
Hearing Conservation program.
If you are exposed to noise levels greater than 84dBA, you will be entered into a
Hearing Conservation program.
When you report to your new command you shall receive a baseline screening.
When you report to your new command you shall receive a baseline screening.
Goals of the Navy Program ElementsGoals of the Navy Program Elements
Prevent occupational hearing loss and ensure auditory fitness.
Prevent occupational hearing loss and ensure auditory fitness.
Prevent noise exposure that has been recognized as an occupational hazard.
Prevent noise exposure that has been recognized as an occupational hazard.
Prevent hearing loss.Prevent hearing loss.
Hearing Conservation Program Elements
Hearing Conservation Program Elements
Work environments shall be surveyed to identify
potentially hazardous noise levels and personnel at risk.
Work environments shall be surveyed to identify
potentially hazardous noise levels and personnel at risk.
Hearing Conservation Program Elements
Hearing Conservation Program Elements
Equipment that produces potentially hazardous noise shall be modified to reduce
the noise level, if FEASIBLE.
Equipment that produces potentially hazardous noise shall be modified to reduce
the noise level, if FEASIBLE.
Hearing Conservation Program Elements
Hearing Conservation Program Elements
Education is vital to the overall success of a
Hearing Conservation Program.
Education is vital to the overall success of a
Hearing Conservation Program.
Navy Exposure Navy ExposureAbove 84 decibels on the “A”
weighted scale (84dBA) requires hearing protection.
Above 84 decibels on the “A” weighted scale (84dBA)
requires hearing protection.“A” weighted means the frequencies and sound levels measured are those experienced by humans, so the meter “hears” similar to the way your ear
hears.
“A” weighted means the frequencies and sound levels measured are those experienced by humans, so the meter “hears” similar to the way your ear
hears.
Navy Exposure Navy ExposureThe limit for impact
noise is 140 dBAThe limit for impact
noise is 140 dBAAbove 104 dBA requires
DOUBLE hearing protection
Above 104 dBA requires DOUBLE hearing
protection
Employer Responsibilities
Employer Responsibilities
the employer has to properly train and inform
the employee of noise hazards and issue hearing
protection.
the employer has to properly train and inform
the employee of noise hazards and issue hearing
protection.
Individual Responsibilities
Individual Responsibilities
It is the responsibility of the individual to utilize the hearing protective devices
they have been given.
It is the responsibility of the individual to utilize the hearing protective devices
they have been given.
How much is a dBA?
How much is a dBA?
Jet Airplane
140 dBA
Jet Airplane
140 dBA
How much is a dBA?
How much is a dBA?
Missile firing
120 dBA
Missile firing
120 dBA
How much is a dBA?
How much is a dBA?
Automobile horn
112 dBA
Automobile horn
112 dBA
How much is a dBA?
How much is a dBA?
Diesel Engine
110 dBA
Diesel Engine
110 dBA
How much is a dBA?
How much is a dBA?
Steam Boiler
100 dBA
Steam Boiler
100 dBA
How much is a dBA?
How much is a dBA?
Lawnmower
95 dBA
Lawnmower
95 dBA
How much is a dBA?
How much is a dBA?
Subway
e-TRAIN
90 dBA
Subway
e-TRAIN
90 dBA
How much is a dBA?
How much is a dBA?Noisy
Restaurant
80 dBA
Noisy Restaurant
80 dBA
How much is a dBA?
How much is a dBA?
Traffic
75 dBA
Traffic
75 dBA
How much is a dBA?
How much is a dBA?
Quiet Home
50 dBA
Quiet Home
50 dBA
NoiseNoiseNOISE is the leading cause of
hearing loss in the Navy. Disease, injury and age are
the others.
NOISE is the leading cause of hearing loss in the Navy.
Disease, injury and age are the others.
30 to 50 percent of all military personnel develop significant noise induced hearing loss.
30 to 50 percent of all military personnel develop significant noise induced hearing loss.
Noise does not toughen your ears……. It destroys them!!!Noise does not toughen your
ears……. It destroys them!!!
Can I toughen my Can I toughen my ears to noise?ears to noise?
Can I toughen my Can I toughen my ears to noise?ears to noise?
NoiseNoise
There is NO known cure for noise-induced hearing loss in
the INNER EAR.
There is NO known cure for noise-induced hearing loss in
the INNER EAR.
Hearing problems in the outer and middle ears are usually
medically treatable,… BUT…..
Hearing problems in the outer and middle ears are usually
medically treatable,… BUT…..
Off-DutyOff-DutyWhat can I do to reduce noise
off-duty?
What can I do to reduce noise
off-duty?
Off-DutyOff-DutyInsert carpets, drapes and acoustical tile to absorb sounds that would otherwise bounce off bare floors, walls and ceilings.
Insert carpets, drapes and acoustical tile to absorb sounds that would otherwise bounce off bare floors, walls and ceilings.Place rubber mats under noisy or vibrating appliances.Place rubber mats under noisy or vibrating appliances.
Off-DutyOff-DutyEnclose noisy machines with materials that absorb sound. Many commercial products are available.
Enclose noisy machines with materials that absorb sound. Many commercial products are available.
Maintain equipment to keep loose or unoiled parts from creating more noise.
Maintain equipment to keep loose or unoiled parts from creating more noise.
Off-DutyOff-DutyBuy plastic replacement parts if possible, when metal parts wear out - plastic is less noisy.
Buy plastic replacement parts if possible, when metal parts wear out - plastic is less noisy.
Choose quieter models when replacing blenders, dishwashers, etc.Choose quieter models when replacing blenders, dishwashers, etc.
Look for items with a HIGH noise reduction rating (NRR).Look for items with a HIGH noise reduction rating (NRR).
Off-DutyOff-DutyPlant leafy shrubs at window height to absorb traffic noise.Plant leafy shrubs at window height to absorb traffic noise.
Don’t play music loudly or use noisy equipment in small enclosed spaces.Don’t play music loudly or use noisy equipment in small enclosed spaces.
Temporary Threshold Shift:
Temporary Threshold Shift:You may not hear certain sounds
at the end of the day.You may not hear certain sounds
at the end of the day.Within 15 to 40 hours after
exposure to noise your hearing bounces back.
Within 15 to 40 hours after exposure to noise your hearing
bounces back.
Permanent Threshold Shift:
Permanent Threshold Shift:
There are NO physical signs, NO pain. There may be a
ringing in your ears. Hearing no longer bounces back. The
LOSS is PERMANENT.
There are NO physical signs, NO pain. There may be a
ringing in your ears. Hearing no longer bounces back. The
LOSS is PERMANENT.
Audiometric TestingAudiometric TestingWhile being tested you sit in a “quiet room”. A trained technician uses an instrument (an audiometer) to send sounds (tones) through headphones. The person being tested responds to these tones. The chart that records responses to test sounds is called an
AUDIOGRAM.
While being tested you sit in a “quiet room”. A trained technician uses an instrument (an audiometer) to send sounds (tones) through headphones. The person being tested responds to these tones. The chart that records responses to test sounds is called an
AUDIOGRAM.
Audiometric TestingAudiometric TestingIt checks workers hearing ability so any hearing loss can be identified and dealt with properly.
It checks workers hearing ability so any hearing loss can be identified and dealt with properly.
Audiometric TestingAudiometric TestingIt measures the overall success of
the program and evaluates workers hearing protection so
changes can be made if necessary.
It measures the overall success of the program and evaluates
workers hearing protection so changes can be made if necessary.
Hearing loss from noise is preventable.Wear your Hearing Protection.
Hearing loss from noise is preventable.Wear your Hearing Protection.
EarplugsEarplugsVery effective for most noise levels,
but they must be carefully fit. Earplugs take some getting used to,
and it may take more than one fitting to get a comfortable pair. Keep them
clean with soap and water. Use a carrying case when not in use.
Very effective for most noise levels, but they must be carefully fit.
Earplugs take some getting used to, and it may take more than one fitting to get a comfortable pair. Keep them
clean with soap and water. Use a carrying case when not in use.
EarplugsEarplugs3 basic types of plugs3 basic types of plugs
Formable/Disposable typeFormable/Disposable type
Premolded/Universal/Multi-size typePremolded/Universal/Multi-size type
Custom Molded TypeCustom Molded Type
Only earplugs listed in OPNAVINST 5100.23 series may be used
Only earplugs listed in OPNAVINST 5100.23 series may be used
Canal CapsCanal CapsJust as effective as earplugs. They’re a possible choice for
people who can’t use earplugs and are useful for people who
enter and leave high noise areas frequently.
Just as effective as earplugs. They’re a possible choice for
people who can’t use earplugs and are useful for people who
enter and leave high noise areas frequently.
EarmuffsEarmuffsThese are convenient and practical for intermittent
exposures. You must not bend or modify any part of the
headband, cup or cushion. Cushions must be replaced
when hard or cracked.
These are convenient and practical for intermittent
exposures. You must not bend or modify any part of the
headband, cup or cushion. Cushions must be replaced
when hard or cracked.
ThanksThanksEnjoy the sounds around you and
have a…….
SAFE DAY
Enjoy the sounds around you and
have a…….
SAFE DAY
