ES&H Section Hearing Conservation FERMILAB. ES&H Section Hearing Conservation Objectives Anatomy and Physiology of the Human Ear What is considered hazardous.

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Presentation transcript:

ES&H Section Hearing Conservation FERMILAB

ES&H Section Hearing Conservation Objectives Anatomy and Physiology of the Human Ear What is considered hazardous noise Sound level measurement How noise effects the ability to hear The Elements of Fermilab’s Hearing Conservation Program Ways to protect your hearing Q & A

ES&H Section Hearing Conservation Outer Ear

ES&H Section Hearing Conservation Middle Ear

ES&H Section Hearing Conservation Inner Ear

ES&H Section Hearing Conservation Nerve Cells

ES&H Section Hearing Conservation Threshold Limit Values for “Continuous” Noise

ES&H Section Hearing Conservation Sound level measurement Sound level meter (SLM) Noise Dosimetry

ES&H Section Hearing Conservation Typical A Weighted Sound Levels 80Vacuum Cleaner 70 60Conversation at 1 m 50Urban Residence 40 30Soft Whisper at 2 m / Rice Krispies 20North Rim of Grand Canyon 10 0Threshold of Hearing (1000Hz)

ES&H Section Hearing Conservation Typical A Weighted Sound Levels 140Threshold of Pain Jet Takeoff at 100 m 110Rock Concert 100Jackhammer at 15 m 90Drilling Concrete 85Heavy Truck at 15 m

ES&H Section Hearing Conservation Typical A-Weighted Sound Levels 80 TORO Ground Master 72 Riding Mower (87 dBA) 70Personnel Dosimetry Results {near compressors and performing some grinding operations (73dBA-77 dBA) IB-1 Shop Area (68dBA-70dBA) During Drilling Operations Lab Audiometric Testing Booth (< 25 dBA) 20 10

ES&H Section Hearing Conservation Typical A-Weighted Sound Levels 140Threshold of Pain Testing of Fire Alarm System in FCC 100MRRF - F0 Compressor Room CHL Nitrogen Plant 90TORO Grounds Master 322-D Riding Mower TORO TV5004 Master Push Mower CUBLab D Compressor Room CDF A/C unitsCHL Chiller Room

ES&H Section Hearing Conservation TimeWeightedEmployee Population AverageExperiencing Exposure (dBA)Hearing Loss (%) < ~100 >

ES&H Section Hearing Conservation Effects of Hearing Loss Everybody Mumbling Communication with people Tinnitus

ES&H Section Hearing Conservation The 4 P’s of Hearing Loss Progressive Painless Permanent Preventable

ES&H Section Hearing Conservation Fermilab Hearing Conservation Annual Training Annual Audiometric Testing –Baseline Hearing Test –Annual Hearing Test –Medical Department Accessibility to Hearing Protection Sound Level Measurements/Audiodosimetry

ES&H Section Hearing Conservation Hearing Protection Devices (HPD) Ear Muffs Ear Plugs –Pinna Pull –Roll and Fit Occlusion Effect Hear better in louder environments

ES&H Section Hearing Conservation Q & A How can I tell when a noise may be harmful to my ears? I don’t need hearing protection, I am used to the noise! Do earmuffs block out noise better than earplugs?

ES&H Section Hearing Conservation Q & A I’ve already lost some or most of my hearing: why should I have to wear hearing protection? What is the Noise Reduction Rating and what does it mean?

ES&H Section Hearing Conservation Summary Anatomy and Physiology of the Human Ear What is considered hazardous noise Sound level measurement How noise effects the ability to hear The Elements of Fermilab’s Hearing Conservation Program Ways to protect your hearing Q & A

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