G.K. (Ghona) Sangha


Ghona Sangha has work in the field of toxicology and regulatory affairs for 44 years. Ghona holds a PhD in toxicology and she has recently served as a consultant to help companies get products registered with the EPA.

  • Toxicology and regulatory Affairs Consultant (2005 – Present) –Provide product development and regulatory support to national and International Companies
  • Owner/Partner In Analytical Chemistry and Exposure Assessment Lab (Golden Pacific Laboratory, 2004-2007)
  • Director of Toxicology Laboratory, Regulatory Toxicology, Product Development, Stewardship and Resource Management (1985-2005) Bayer CropScience, Kansas
  • Toxicology Specialist – Inhalation Toxicology (1979-1985) Bayer Corporation Kansas - Developed capabilities for the department
  • Research Fellow – University of Pittsburgh (School Of Public Health, Pittsburgh, PA (1977-1979) – Hyper reactivity of Isocyanates and combustion Toxicology of plastics
  • Research Fellow – Institut Fur Okologische Chemie, St. Augustin, W. Germany (1973-76) – Metabolism of Chlorinated hydrocarbons in Rhine River related Ecosystem


  • Ph.D. (Toxicology Major; Ecology and Physiology Minor) University of Illinois (1971) Prof. Robert Metcalf –Developed Ecosystem to compare fate of DDT/DDE and OPs/Carbamates
  • M.Sc. (Zoology), Birla Institute Of Technology & Sciences, Pilani (1966)
  • B.Sc. (Chemistry, Botany, Zoology), Govt. College for Women Ludhiana, Punjab University, Chandigarh (1962)
  • B.Ed. Punjab University, Chandigarh (1963)



  • Otto Bayer Medal for Innovation & technology (highest Bayer award)
  • Gold Medal for graduating First in M.Sc.
  • Representative in several organizations and Trade associations
  • Member of national and International Steering Committees and Due Diligence Team of Bayer CropScience
  • Adjunct Assistant Professor Inhalation toxicology
  •  >20 Publications and a Book Chapter in Hand Book Of Pesticide Toxicology

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