Scientific Committees

ACGIH Scientific Committees

Experts Advancing ACGIH

Committees are established by and responsible to the Board of Directors. The activities of each Committee are directed by an individual mission statement. Committee members are appointed by the Board of Directors; any ACGIH member interested in volunteering for possible appointment may do so by writing to the Chair of ACGIH in care of the Headquarters Office (3640 Park 42 Drive | Cincinnati, Ohio 45241; phone: 513-742-2020, e-mail:

Committee members are not authorized to speak with stakeholders or distribute information about TLVs, BEIs, and other ACGIH guidelines that are under development. Committee members are not authorized to speak as representatives of ACGIH about ACGIH and/or the TLVs, BEIs, and other ACGIH guidelines at scientific meetings, symposia, etc. without consent from ACGIH. (Click here to view the ACGIH Public Affairs and Communications Policy and the ACGIH Information Release Policy.)

To compile and disseminate information on biologically derived contaminants that may become airborne, to develop recommendations for assessment, control, remediation, and prevention of such hazards, and to establish criteria for bioaerosol exposure limits. Current members are:

Position Name
Chair John P. Springston, CIH, CSP, FAIHA
Vice Chair Cheri Marcham, PhD, CIH, CSP, CHMM, FAIHA
Member Ginger L. Chew, ScD, MSPH
Member Ushang Desai, PhD
Member J. David Krause, PhD, MSPH, CIH
Member Francis J. Offermann, PE, CIH
Member James A. Scott, PhD
Board Liaison John McKernan, ScD, CIH
Staff Liaison Erica Rosalle

To develop occupational biological exposure guidelines that are scientifically valid and supported by professional judgment, up-to-date, well-documented, understandable and clear, and produced by a clearly-defined process that is balanced and free of conflict of interest. Current members are:

Position Name
Chair Nancy B. Hopf, PhD
Vice Chair Lee M. Blum, PhD, F-ABFT
Member Michael Bader, Dr. rer. nat.
Member Jean Grassman, PhD, MS, CPH
Member Kate Jones, MS
Member Heiko U. Käfferlein, PhD
Member Larry Lowry, PhD
Member Leena A. Nylander-French, PhD, CIH
Board Liaison Neil J. Zimmerman, PhD, PE, CIH, FAIHA
Staff Liaison Erica Rosalle

To provide a safe and healthful environment by integrating state-of-the-art information from government and industry sources, using them to develop and recommend ventilation and other engineering controls to capture, collect, filter, and remove airborne contaminants from the workplace.

Current members of Industrial Ventilation Committee:

Position Name
Chair Robert Shearer
Vice Chair James S. Bennett, PhD
Member Sergio A. Caporali Filho, PhD, CSP, CIH
Member Matt Diestler, EIT
Member George R. Gruetzmacher, PhD, PE, CIH
Member Christopher P. Manning, PhD
Member Dale Price
Member Rafael Sartim, PhD
Member Jennifer L. Topmiller, MS
Board Liaison Stephanie Lynch PhD, CSP, COHC
Staff Liaison Erica Rosalle

To recommend airborne concentrations of agents and exposure conditions for use in the practice of industrial hygiene and by other qualified professionals to protect worker health.

Current members of Threshold Limit Values for Chemical Substances Committee:

Position Name
Chair Rachel Rubin, MD, MPH
Vice Chair Michael DeLorme, PhD
D&I Chair Alison Elder, PhD
D&I Vice Chair Hugh William Davies, PhD, CIH
HOC Chair Jeremy R. Beach, MD
HOC Vice Chair Deborah Glass, PhD, MA, MSc
MISCO Chair Gerald L. Kennedy, Jr.
MISCO Vice Chair Dennis M. Casserly, PhD, CIH
Chemical Selection Chair Edward V. Sargent, PhD, MPH, DABT
Notations Chair Michael DeLorme
BEI Liaison Bruce D. Naumann, PhD, DABT
Member Marcy I. Banton, DVM, PhD, DABVT
Member William S. Beckett, MD, MPH
Member Laura Deakin, PhD, MPH
Member Ian A. Greaves, MD
Member Andrew Keebaugh, PhD
Member Michael T. Kleinman, PhD
Member Mark Korchinski, MSc, DABT, ERT
Member John Murphy, BSc, MHSc, MBA, PhD, ROH, CIH, MACE
Member Candace Su-Jung Tsai, ScD, CIH
Member James Wagner, PhD
Board Liaison Pam Susi, MSPH, CIH
Staff Liaison Skye Bickett, DHSc, MLIS

To develop occupational exposure guidelines for physical agents, including those of an acoustic, electromagnetic, radiological, ergonomic, mechanical, and thermal nature.

Current members of Threshold Limit Values for Physical Agents Committee:

Position Name
Chair Richard L. Neitzel, PhD, CIH, FAIHA
Vice Chair (vacant)
Member Karl Friedl, PhD
Member Laurel Kincl, PhD, CSP
Member Bernard Martin, PhD
Member David M. Rempel, MD, MPH, CPE
Member Michael Schmoldt, CIH, PE, CHMM, MS, MPH, MBA
Member Suzanne D. Smith, PhD
Member June T. Spector, MD, MPH
Board Liaison Neil J. Zimmerman, PhD
Staff Liaison Erica Rosalle