TCAS
Toxicology Consultants & Assessment Specialists, LLC

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Hazardous Substances   Toxic Substances: Hazardous Substances
TCAS provides toxicological assessment services for a wide range of hazardous substances [a] Hazardous substances constitute a special class of toxic agents in that they pose immediate dangers to human health via simple contact or proximity. TCAS provides toxicological consulting and assessment services for a wide range of hazardous toxic substances,... (more)

Drugs of Abuse   Toxic Substances: Drugs of Abuse
Drugs of abuse are well-documented in the peer-reviewed toxicological literature. a TCAS has provided toxicological guidance, written assessments and expert testimony in hundreds of drug-related cases. Virtually all drugs of abuse are well-documented in the peer-reviewed toxicological literature with clearly-established endpoints. However, drugs of... (more)

Consumer Product Toxicology   Toxic Substances: Consumer Product Toxicology
Consumer product toxicology involves a wide range of chemical and biological compounds. a Consumer product toxicology evaluations involve a wide range of chemical and biological compounds. With respect to toxicity, the manner in which consumer products are used can be just as important as the chemicals in the products. For example, ammonia and chlorine... (more)

Environmantal Hazard Toxicology   Hazardous Substances: Environmantal Hazard Toxicology
Overview TCAS has extensive experience assessing environmental hazards [a] Environmental hazards are substances found within a confined environment which can pose an exposure hazard if ingested, inhaled or absorbed. These include such agents as dust, mold and fungi, carbon monoxide, pyrolysis emissions, nuclear waste and many others. The wide range... (more)

Professional Experience and Toxicological Specializations   Professional Experience and Toxicological Specializations
TCAS has assessed hundreds of different types of toxic substances and exposure effects. [a] TCAS provides professional, comprehensive forensic and environmental exposure analysis, risk assessments and causation determinations. With more than 28 years of hands-on experience, our cases cover a vast range of toxic exposure-related issues combining toxicological... (more)

Dr. William R. Sawyer, Toxicologist   Home: Dr. William R. Sawyer, Toxicologist
Ph.D., Diplomate, American Board of Forensic Medicine D-ABFM Dr. William R. Sawyer is an expert forensic toxicologist For more than 28 years expert toxicologist Dr. William R. Sawyer has been providing forensic toxicology consulting services and expert testimony. A diplomate of the American Board of Forensic Medicine, Dr. Sawyer has extensive experience... (more)

Curriculum Vitae: William R. Sawyer, Ph.D., D-ABFM   CV: Curriculum Vitae: William R. Sawyer, Ph.D., D-ABFM
Diplomate, American Board of Forensic Medicine Introduction Dr. William Sawyer is a professional toxicologist with a doctorate in toxicology from Indiana University School of Medicine. He is a diplomate of the American Board of Forensic Medicine with more than 28 years of experience in public health and forensic toxicology including five years of governmental... (more)

Site Map   Site Map
Toxicology Consultants and Assessment Specialists, LLC TCAS has devoted its website to the role of the expert toxicologist and the science of toxicology. The following pages present both original and edited public-domain information compiled as a useful educational resource. This site map is a content reference intended to assist with rapid location... (more)

A Message from Dr. William R. Sawyer
Chief Toxicologist, TCAS, LLC

A message from Dr. William R. Sawyer, Expert Toxicologist

Hazardous substance toxicology requires application of scrupulous attention to detail and methodology. Many years of experience are a virtue in conducting such assessments, particularly in cases involving widespread contamination.

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This is an informational and instructional website devoted to toxicology. It presents both original and edited public-domain content compiled as a useful educational resource. References and footnotes have been included wherever possible and image sources have been cited where appropriate. Although most pages can be printed or downloaded as PDF files (and we encourage you to make constructive use of our information), this website is copyrighted and material may only be reproduced and/or distributed with prior permission from TCAS, LLC.