Event
PNS-AIHA Teleweb: Understanding Why Noise is More Hazardous than You Think: Rationale for Adopting the 85-3 Noise Criterion Now (Re-broadcast)
Understanding Why Noise is More Hazardous than You Think: Rationale for Adopting the 85-3 Noise Criterion Now
Sponsored by the AIHA Noise Committee
Earn 2.5 cm credit hours | 2.5 contact hours | 0.3 COC/ceu
The address is 4225 Roosevelt Way N.E.
When you arrive at 4225 Roosevelt, check in with Phillip as you enter Suite 100 (he will buzz you into the building).
Transportation: Many buses serve the U district and there are bike racks on the sidewalk. Street parking is limited, but there is a pay parking lot under the building (entrance on Roosevelt just south of the building entrance) and surface lots in the neighborhood.
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Presented By
John C. Ratliff, CSP, CIH, MSPH
William Carter, PhD, University of Findlay, Findlay, OH.
Alice Suter, PhD
Sharon Kujawa, PhD, Harvard Medical School, Boston, MA
See individual presenter bios provided below.
Description
This topic, the 85-3 concept, is aimed at making safety and IH professionals aware of the need to change the USA Federal OSHA requirements from their current 90-5 criterion to the more conservative 85-3 criterion. The value of the information and identify new or unique guidelines and techniques. 85-3 represents the use of an 8-hour exposure of noise at 85 decibels on the A-scale (dBA) and a 3 decibel doubling rate to determine noise dose. The current OSHA standard is a 5 dBA doubling rate, which does not protect many workers from hearing loss over their working lifetime.
There is a movement nationally for companies to adopt the concept of an 85 dBA criterion level for 8-hour exposures, and a 3 dB doubling rate. The movement is called the 85-3 Coalition, and this webinar will detail the history of the movement, explore these concepts, which are used worldwide except in the USA, and new research on why noise is more hazardous than you think. Hearing conservation programs are set up on baseline and annual audiograms, but new research shows that even with no decrement in an audiogram, there can be nerve damage that manifests itself in other ways. By incorporating the 85/3 concept, the work force will be substantially more protected from occupational noise exposure.
Agenda
John Ratliff, CSP, CIH, MSPH, will lead off, presenting the differences in the noise calculations using four different criterion. He will go through the noise calculation formulas, then present information from his research which will demonstrate these differences. He will also demonstrate the use of a Noise Calculation Spreadsheet he has developed.
William Carter, PhD, will then present his research on calculating different noise doses from traffic studies he conducted in the traffic police in the Kathmandu Valley, and further research on the 85-3 concept with steady-state noise fields.
Sharon Kujawa, PhD, will present new research she has conducted experimentally showing noise damage to the cochlear nerve which is not detected using standard audiograms. This is the basis for saying that "Noise is more hazardous than you think."
Alice Suter, PhD, one of the founding members, will detail the history of the 85-3 movement, discuss the research supporting the use of 85-3 as a standard, and detail the events leading to the formation of the 85-3 Coalition.
Course level - Intermediate
Recommended reading
Kujawa, Sharon G., and M. Charles Liberman, "Adding Insult to Injury: Cochlear Nerve Degeneration after "Temporary" Noise-Induced Hearing Loss, The Journal of Neurascience, 11 November 2009, 29(45): 14077-14085;doi: 10.1523/JNEUROSCI.2845-09.2009 - http://www.jneurosci.org/content/29/45/14077.short
Ratliff, John C., "Total Noise Exposure, Thoughts on Controlling Noise on (and off) the Job," The Synergist, Vol. 23, No. 4, April 2012, pages 30-32.
National Hearing Conservation Association's 85-3 Campaign titled "85-3, The Sound Choice - http://www.hearingconservation.org/displaycommon.cfm?an=1&subarticlenbr=142
NIOSH website on Noise and Hearing Loss Prevention:
http://www.cdc.gov/niosh/topics/noise/
Criteria for a Recommended Standard, Occupational Noise Exposure, Revised Criteria 1998: http://www.cdc.gov/niosh/docs/98-126/pdfs/98-126.pdf
Learning outcomes
Upon completion, the participant will be able to:
-Calculate dose levels using both the 85-3 concept and the OSHA PEL, which is a 90-5 concept (criterion level in dBA and the doubling rate of either 3 dB or 5 dB).
-Use the Noise Calculation Spreadsheet to make calculations, using four different criterion
-Identify the different means by which the inner ear is damaged by noise.
-Discuss why even when a temporary threshold shift go back to normal, permanent damage can occur to the inner ear's nerves.
-Understand why OSHA adopted the 90-5 criterion, and the reasons this is now considered out-of-date.
-Discuss the history of the 85-3 concept and understand the history of the 85-3 Coalition, and why it is important to adopt 85-3 as the standard for companies in the USA.
-Differentiate between instrument threshold and the criterion levels for calculating noise dose using either the 85-3 or the OSHA standards.
Presenter Bios
John C. Ratliff, CSP, CIH, MSPH John Ratliff has been working in the field of noise and hearing conservation since 1979. He is the present Chair of the AIHA Noise Committee, and his Capstone Project for his MSPH from Tulane University was titled "The OSHA Noise Regulations and More Protective Alternative Noise Strategies". He will present information on the exchange rate, threshold and criterion for noise dosimetry, and explain how that impacts the noise dose.
William Carter, PhD is a Emeritus Professor of Environmental Safety and Health Management at the University of Findlay where he taught Occupational Health and Epidemiology courses. In 2009 he introduced the first
course in Occupational Hygiene in Nepal at Kathmandu University as a Fulbright Scholar. He has served on various committees of the American Industrial Hygiene Association including the Communication and Training and Management Committees. Currently he is chair of the Academic SIG. Bill has run an environmental and IH laboratory and owned his own consulting firm with emphasis in Health and Safety Training, Environmental Permitting, and business management. Bill has a BA from Williams College in Massachusetts and a Ph.D. in Chemistry from Syracuse University.
Alice Suter, PhD worked in the area of noise effects and hearing conservation for more than 30 years. She has an M.S. in education of the deaf and a Ph.D. in audiology. She has been influential in noise criteria development, regulation, and public policy, first at the U.S. EPA's Office of Noise Abatement and later at OSHA. At the EPA she participated in the development of criteria for noise effects, including the psychological, extra-auditory physiological, performance, and communication effects, in addition to the effects of noise on hearing. As Senior Scientist and Manager of the Noise Standard at OSHA, she was principal author of the hearing conservation amendment to the noise standard. She has also held positions of Visiting Scientist and Research Audiologist at NIOSH. She is now a consultant, living in Portland, Oregon. She is holds fellowship in the Acoustical Society of American and the American-Speech-Language-Hearing Association, and has received several honors for her work, including the Alice Hamilton Award from the American Industrial Hygiene Association and the Lifetime Achievement Award from the National Hearing Conservation Association.
Sharon Kujawa, PhD is an Associate Professor of Otology and Laryngology, Harvard Medical School and Director of the Audiology Department at the Massachusetts Eye and Ear Infirmary, Boston. She is on the faculty of the Harvard-MIT Program in Speech and Hearing Biosciences and Technology and is a Principal Investigator in the Eaton-Peabody Laboratory of the Massachusetts Eye and Ear Infirmary. Work in the Kujawa Lab focuses on understanding the mechanisms by which inner ear function is compromised by noise exposure and how such noise-induced compromise alters the way ears and auditory nervous systems age. Her studies are directed toward understanding how vulnerability to noiseinduced hearing loss and inner ear damage is shaped by genetic background, how it interacts with age and exposure history to influence auditory functional and neurodegenerative outcomes, and how it can be manipulated pharmacologically to reveal underlying mechanisms or for treatment or prevention.
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LocationUW Roosevelt 4225 Roosevelt Way NE Suite 100, Rm 229 (View)
4225 Roosevelt Way NE Suite 100, Rm 229
Seattle, WA 98105
United States
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| Wheelchair Accessible: Yes! |
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