AIHA | Protecting Worker Health www.aiha.org
APRIL 2020
CONTENTS
CONTRIBUTORS
SPENCER PIZZANI, FEATURE AUTHOR
Spencer Pizzani, CIH, is the industrial hygiene program manager for Pepsico Beverages North America.

ROBERT N. PHALEN, FEATURE AUTHOR
Robert N. Phalen, PhD, CIH, FAIHA, is an associate professor of Occupational Safety and Health at University of Houston-Clear Lake in Houston, Texas.  
NORMAN W. HENRY III, FEATURE AUTHOR
Norman W. Henry III, MS, CIH, FAIHA, is a consultant for Safety and Health by Protection (SHBP).
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The Synergist's mission is to provide AIHA members with news and information about the 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.


PROTECTING MODIFIED WORKER HEALTH    
BIOHACKING AND THE WORKPLACE
Advancing technology presents new industrial processes and agents to understand, new controls and materials to characterize, and new topics to master. The same approach applies to adapting evaluation techniques to protect workers who may be unusually vulnerable to certain risks, or who have been modified in a variety of emerging ways.

BY SPENCER PIZZANI
»
IT’S THE HEAT—
AND
THE HUMIDITY
CRITICAL FACTORS FOR HEAT STRESS ASSESSMENT AND PREVENTION
Heat-related illnesses are insidious conditions that can affect almost anyone with little warning, especially since symptoms may affect one’s ability to recognize the danger. All that is needed for the onset of heat stress is for the energy and blood demanded by the muscles to compete with the body’s cooling mechanisms.       

BY ROBERT N. PHALEN AND CATHERINE L. BESMAR
»
CHEMICAL PROTECTIVE CLOTHING 101   
A PRIMER ON PERMEATION, PENETRATION, AND DEGRADATION   
IHs know the importance of chemical protective clothing, but not always the extent to which CPC materials can resist any of the numerous chemicals present in the workplace, particularly those new to the market. In these circumstances, IHs continually face the problem of how to select appropriate CPC while lacking data on the materials’ chemical resistance.        
  
BY NORMAN W. HENRY III, CURTIS HINTZ, AND ROBERT N. PHALEN
»
Protecting Modified Worker Health
Biohacking and the Workplace