thesynergist | FEATURES
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PATTERNS OF EXPOSURE THE POWER AND UTILITY OF MATHEMATICAL MODELS
The world of chemical concentration models for exposure assessment can be intimidating, but it doesn’t need to be. Industrial hygienists can overcome hesitation about using models by practicing the calculations of basic models and understanding their appropriate application. BY CHRIS KEIL
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A DEAF SPOT FOR INDUSTRIAL HYGIENE
THE PROBLEM OF IMPULSE NOISE
 
For many military personnel, impulse noise is an ever-present hazard. Each branch of the U.S. military evaluates the risk of impulse noise differently, complicating efforts to protect hearing.
BY COREY BENDER
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A GOOD NIGHT’S SLEEP WORKPLACE FATIGUE AND THE 24/7 SOCIETY
 
To begin solving the complex problem of workplace fatigue, occupational health and safety professionals and others must work to overcome several long-held misconceptions.
BY SHEREE GIBSON
Download a PDF version of the January 2017 Synergist (log-in required).
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COLUMNS AND DEPARTMENTS
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COMMUNITY
CONTRIBUTORS
CHRIS KEIL, FEATURE AUTHOR
Chris Keil, PhD, CIH, is a professor in the Department of Geology and Environmental Science at Wheaton College in Wheaton, Ill.
COREY BENDER, FEATURE AUTHOR
Corey Bender, CIH, CSP, is Northern Virginia regional safety director for Virginia Occupational Safety and Health.  
SHEREE GIBSON, FEATURE AUTHOR
Sheree Gibson, PE, CPE, is a consultant at Ergonomics Applications in Salem, S.C.
ON AIHA.ORG
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COMING IN FEBRUARY: The Citizen Scientist | Surveillance and Biomonitoring of Nanomaterial Workers | Silica Hazard Identification in Construction
The Synergist's mission is to provide AIHA members with news and information about he occupational and environmental health and safety fields and the industrial hygiene profession. The Synergist focuses on industry trends and news, government and regulatory activities, key issues facing the profession, appropriate technical information and news on association events and activities.
The Synergist's objective is to present information that is newsworthy and of general interest in industrial hygiene. Opinions, claims, conclusions, and positions expressed in this publication are the authors' or persons' quoted and do not necessarily reflect the opinions of the editors, AIHA, or The Synergist.
FROM HEARING LOSS TO FATALITIES
SPONSORED BY CASELLA
 
Noise-induced hearing loss is just one consequence of occupational exposure that the industrial hygienist has to consider among a plethora of potential hazards such as toxic dusts and vapors, radiation, and vibration.