Download No Slide Title

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

Sound localization wikipedia , lookup

Hearing loss wikipedia , lookup

Evolution of mammalian auditory ossicles wikipedia , lookup

Auditory system wikipedia , lookup

Ear wikipedia , lookup

Olivocochlear system wikipedia , lookup

Audiology and hearing health professionals in developed and developing countries wikipedia , lookup

Sensorineural hearing loss wikipedia , lookup

Soundscape ecology wikipedia , lookup

White noise wikipedia , lookup

Noise-induced hearing loss wikipedia , lookup

Noise in music wikipedia , lookup

Earplug wikipedia , lookup

Transcript
Ohio BWC Division of Safety
and Hygiene
• John Canning
• Cleveland Service Office
• Lausche Office Building
• 216-787-3060 (office)
• 216-469-6396 (cell)
• [email protected]
1
Hearing Conservation
and
Noise Control
2
WHY??????
• It’s the LAW
• Quality of Life
• Gradual / Painless
3
Anatomy of the Ear
Pinna
Semi-Circular Canals
Auditory Nerve
Cochlea
Hammer-Anvil-Stirrup
4
Types of Hearing Loss
• Conductive
• Central
• Sensorineural
5
6
Degree of Risk
•
•
•
•
Frequency
Intensity
Duration
Individual Variability
7
How Loud is Loud?
•
•
•
•
•
•
•
Jet engine
Threshold of Pain
Pneumatic hammer
Compressed Air
Punch Press
Lawn Mower
Conversation
140 db
125 db
110 db
105+ db
95 db
90 db
65 db
8
Noise
Thermometer
9
Personal Protective Equipment
advantages / disadvantages
• Cotton Balls
• Canal Blockers
• Ear Muffs
• Ear Plugs
• NRRs
(example on next page)
10
NRRs
• EPA protocol
• For “A” scale measurements NRR – 7
Noise exposure 92 dBA
Manufacturer’s NRR 32
32 – 7 = 25 (effective noise exposure reduction)
92 – 25 = 67 dBA
11
Exposure Limits
• ACGIH
85 dBA (3 dBA)
• NIOSH
85 dBA (3dBA)
• OSHA
84 dBA (5 dBA)
(Action Level) 85 - 89 dBA
90 dBA
12
Noise Monitoring
• Required by the OSHA standard to identify
all noise above 80 dBA
• Monitoring must be performed whenever
there is an increase in production or
equipment is added that could increase the
noise level
13
Audiograms
14
Training requirements
• Annual Training
• Hearing Conservation Elements
• Hearing Protectors
15
Recordkeeping
• Monitoring records
• Audiometric testing records
16
Noise Control
• Engineering
• Administrative
• Personal Protective Equipment
17
What we’re doing to control noise
• Fill in here what you’re company is doing
to reduce exposure to noise……..
• Reducing air pressure,
• Enclosing loud operations or the operator,
• Slowing cycle times,
• Rotating workers,
• Insulating equipment, breaking the path….
18
Resources (with some Free Stuff)
•http://www.ear.com/hearingconservation/images/OSHA
_Poster2.pdf
• http://www.howardleight.com/bestpractices/educate
19