Department of Environmental and Radiological Health Sciences

Toxicology is the study of the effects of chemicals and other potentially harmful agents on biological systems. The field draws upon the sciences of biology, chemistry, biochemistry, physiology, cell and molecular biology, neuroscience, and pathology. The core curriculum provides a comprehensive background in toxicology, enhanced by elective offerings in the department and the many basic and health science courses available at CSU.

The non-thesis M.S. in Toxicology, Plan B transitions graduates into MD, DVM, PharmD, and other professional programs, and prepares students for research careers in industry, government, and academia. Graduates can also find professional employment in public and private sector positions such as environmental protection, risk assessment, or product safety evaluation.

Effective Fall 2022

Core Courses
ERHS 502Fundamentals of Toxicology3
ERHS 601Metabolism and Disposition of Toxic Agents3
ERHS 602Toxicological Mechanisms3
ERHS 603Toxicological Pathology3
ERHS 693CResearch Seminar: Toxicology1
Toxicology Courses 1,2
Select at least 9 credits from the following:9
Environmental Toxicology
Environmental Contaminants
Occupational and Environmental Toxicology
Toxicology Toolbox: Fundamentals
Toxicology Toolbox: Metabolism and Disposition
Environmental Exposure Assessment
Equipment and Instrumentation
Environmental Health Risk Assessment
Chemical and Biological Warfare Agents
Forensic Toxicology
Cell and Molecular Toxicology Techniques
Pharmaceutical and Regulatory Toxicology
Environmental Carcinogenesis
Other Requirements
Electives 1,2,310
Program Total Credits:32

A minimum of 32 credits are required to complete this program.  


Courses selected in consultation with advisor and graduate committee.


A maximum of 7 credits below the 500-level may be included in the program.


No more than a total of 6 credits of Internship, Independent Study, Group Study, and Research courses may be included in the program.

Successful completion of a comprehensive examination is required.

OR with the consent of the major advisor and program coordinator, preparation of a professional paper under the direction of a Toxicology faculty member may be completed in place of the comprehensive examination. For this option, the student must register for ERHS 695C.