Gyan Rajhans, P.Eng., CIH, ROH
University Degree Year
Queen's University, Kingston, Ontario, Canada. M.Sc.(Engineering) 1966
Thesis: Critical Velocities of Mineral Dusts.
Faculty: Mining Engineering
Award: George C. Bateman Fellowship.
Ranchi University, India B.Sc. (Engineering) 1963

Major: Dust Control in Coal Mines
Minor: Mine Engineering
Award: Vice Chancellor's Scholarship.


Professional Societies (Elected Offices)
Vice-Chair-elect, Vice-Chair, Chair, Past Chair, ACGIH 1995-1998
Director, ABIH 1988-1995
Secretary-Treasurer, CRBOH 1988-1992
Chair, Ethics Committee, IOHA 1987-1990

Director, OHAO


Professional Societies and Committee (Appointments)
Chair, ACGIH Industrial Ventilation(IV) Committee 2002-present
Member,Editorial  Board,  AIHA Journal  1983-2003
CO-Chair, AIHCE, Toronto, Canada 1999
Vice-Chair, ACGIH IV Committee 1993-1995
Member, ACGIH IV Committee 1974-1995
Founding Member, International Society Of Indoor Air and climate  1991
Member, Organising Committee,the 5th International Conference on Indoor Air Quality and Climate 1990
Chairman, Scientific Program, 3rd International Conference on Ventilation and Contaminants 1991
Member, Program Committee, AIHC&E, Orlando 1990
Member, ACGIH Air Sampling Instruments Committee 1974-1988  
C0-Chair, AIHC&E, Montreal  1987 
Chair, Technical committee, 1st International Conference on Ventilation and Contaminants 1985
Chair, Education Committee, OHAO 1980-1985

Member, AIHA Trade Practices Committee


Professional Society Memberships
American Industrial Hygiene Association(AIHA) 1970-present
American Conference of Governmental Industrial Hygienists (ACGIH 1967-present
American Academy of Industrial Hygienists. 1988-present
Occupational Hygiene Association of Ontario  1969-present
Association of Professional Engineers, Ontario 1967-present
International Society of Indoor Air Quality 1991-1998
Gyan Rajhans
Awards & Certificates


Gyan Rajhans