1984 to Current:  Consultant and Expert Witness - Environmental Toxicology and Immunotoxicology.  Northridge, CA, Alto; N. Mex. and Minden, Nevada, and Citrus Heights, California.  Human Health Effects.  Research, Library Research, Consulting and Testimony.

Technical Director of Toxicology, National Toxic Encephalopathy Foundation, Las Vegas, Nevada.

Representative Chemicals:  Formaldehyde (Trailers and Mobile Homes), Organo-phosphate pesticides, Chlorinated Pesticides, Herbicides, Pyrethrins, Solvents (Aromatic, Gasoline, Paint Thinners, Chlorinated), Indoor Air , New Carpeting, Smog, Heavy Metals, Methyl Bromide, Isocyanates, Silicone Breast Implants, Industrial Air Pollution, Ground Water Contamination, Hydrogen Sulfide (Sewer gas, concentrated animal feed organization, Oil & Gas Fields, Waste Treatment Plants), Organo-Sulfur Compounds, Paints (Solvent and Water Based), Ammonia and Ammonium Compounds, Mold, Mycotoxins, Indoor Environment resulting from water intrusion, Cosmetics, Fragrances, Asbestos

1989 to 1996:  Mentor:  School of Health and Human Services, Columbia  Pacific University, San Rafael, CA.

1988 to 1994:  Consultant to Antibody Assay Laboratories, Santa Ana, CA

1990-1995:  C.E.O.  International Institute of Research for Chemical Hypersensitivity (INRCH), Northridge, CA and Alto, N. Mex.

1993-1994:  Editor-in-Chief, Informed Consent, INRCH, Publisher.

1993 to 1996:  Faculty.  Eastern New Mexico University, Ruidoso, N. Mex.

1994 to Current:  Advisory Committee, Chemical Impact Project, Tides
Foundation, Mill Valley, CA.

2002 to Current:  Recent Consultation to:

National Toxic Encephalopathy Foundation

Immunosciences Lab, Inc., Beverly Hills, CA.

Progressive Health Care, Benson Arizona.   

Center for Immune and Toxic Disorders, Spring, Texas

State Of New Mexico, Department of Health, Expert in Mold Inspections

Real Time Laboratories, LLC, Dallas, Texas – Consultant