TCAS
Toxicology Consultants & Assessment Specialists, LLC

15 found, showing page 1 of 2  Next >  1  2 
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)

Toxicology of Pharmaceuticals   Toxic Substances: Toxicology of Pharmaceuticals
TCAS has broad experience with pharmaceutical toxicology. a TCAS has wide experience with pharmaceutical toxicology and has performed many assessments involving prescription medications, drugs of abuse, vaccines and over-the-counter preparations. Although pharmaceutical use can be a significant toxicological factor in a variety of claims, the real... (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)

Industrial Chemical Toxicology   Hazardous Substances: Industrial Chemical Toxicology
Overview Each chemical has different toxicological properties and characteristics [a] There are tens of thousands of different industrial chemicals manufactured, stored and transported throughout the U.S. and the rest of the world. Each substance has different toxicological properties and physical characteristics. Some industrial chemicals can pose... (more)

Toxicology of Hydrocarbons   Hazardous Substances: Toxicology of Hydrocarbons
Overview TCAS has broad experience assessing the health effects of hydrocarbons [a] Hydrocarbons are a class of organic chemical compounds containing only hydrogen and carbon. Although hydrocarbons all possess structural similarities, there is a vast spectrum of compounds and each has different physical, chemical and reactive properties. Similarly,... (more)

Toxicology of TCDD and TCDF Dioxins   Toxic Exposure Studies: Toxicology of TCDD and TCDF Dioxins
tetrachlorodibenzodioxins and tetrachlorodibenzofurans Overview Of the many toxic substances confronting the expert toxicologist, dioxins are among the most challenging. A scientifically credible toxicological assessment of a dioxin exposure must meet many requirements. The body of ongoing research is vast and there are a great many human epidemiological... (more)

High-Level Petroleum Hydrocarbon Vapor Exposures Induce Toxic Encephalopathy   Case Studies in Toxicology: High-Level Petroleum Hydrocarbon Vapor Exposures Induce Toxic Encephalopathy
This case study demonstrates how causation can be demonstrated by weight of evidence WOE and how objective investigation of contributing factors can play a pivitol role in formulating an expert opinion to reasonable toxicological certainty. Toxic encephalopathy can be caused by repeated exposure to refinery hydrocarbon vapors. [a] A process engineer... (more)

Polycyclic Aromatic Hydrocarbons (PAHs) and Polychlorinated Biphenyls (PCBs) Create Residential Hazard   Case Studies in Toxicology: Polycyclic Aromatic Hydrocarbons (PAHs) and Polychlorinated Biphenyls (PCBs) Create Residential Hazard
This case study reviews a residential contamination case involving local residents exposed to PAH- and PCB-contaminated water that flooded their properties. It illustrates the importance of applying generally-accepted, peer-reviewed toxicological assessment methods and the steps necessary to present scientifically credible findings in litigation. Exposure... (more)

Toxic Tort: Trichloroethylene in Residential Water Supply   Case Studies in Toxicology: Toxic Tort: Trichloroethylene in Residential Water Supply
This case study summarizes the events surrounding the filing of a lawsuit by residents against a company for allegedly contaminating the local water supply with trichloroethylene, a chemical used in industrial cleaning and degreasing. It further illustrates how exposure evidence, historical factors, a residential questionnaire and a toxicological risk... (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)

15 found, showing page 1 of 2  Next >  1  2 


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.

 Home   |  Experience  |  Toxic Substances  |  Case Studies  |  CV  |  News  |  About  |  Site Map  |  Contact
Toxic Exposures  |  Environmental Testing  |  Risk Assessment  |  Forensic Toxicology  |  Causation Evaluation
Dioxin  |  LNAPL  |  Hazardous Substances  |  Heavy Metals  |  Alcohol Toxicology  |  Drugs of Abuse
Environmental Hazards  |  Industrial Chemicals  |  Hydrocarbons  |  Metals & Compounds  |  Pesticides
Pharmaceutical Toxicology  |  Consumer Products  |  Human Health Risk Assessments

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.