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Students in toxicology lab
Master of Science (professional) in Toxicology

The Master of Science (professional) in Toxicology is an excellent choice for students who want to add experience, academics, and service to their resume to differentiate themselves from the traditional applicant pursuing either a professional program or career opportunity. The program offers students flexibility in class choices and in time to completion.


Environmental health professionals study how people interact with their environment in order to understand how the environment may positively or negatively affect human health.

Students in the professional master's program have career goals that include;

  • Toxicologists
  • Epidemiologists
  • Air and Water Pollution Specialists
  • Hazardous and Solid Waste Specialists
  • Health Educators
  • Professional Medical Careers

Learn more about Environmental Health Careers


The program requires the completion of 32 hours of coursework consisting of 12 credits of core classes, plus 9 credits of Toxicology electives, a seminar, and electives chosen to fill the students career path. Remaining electives are chosen by the student in consultation with their faculty advisor with the goal to maximize learning opportunities for the student, develop particular skills or competencies, and encourage hands-on training experiences. Credit may be earned for research, independent study, and internships.

Printable version of toxicology core courses and admission requirements

Core Courses:

Fundamentals of Toxicology - ERHS 502 - 3 credits
Metabolism and Distribution of Toxic Agents - ERHS 601 - 3 credits
Toxicological Mechanisms - ERHS 602 - 3 credits
Toxicological Pathology - ERHS 603 - 3 credits

Departmental Electives
At least one course must be selected from the following options:

Environmental and Occupational Health Issues - ERHS 520 - 3 credits
Clinical and Forensic Toxicology - ERHS 566 - 3 credits
Pharmaceutical and Regulatory Toxicology - ERHS 568 - 3 credits

At least two courses must be selected from the following options:

Environmental Contaminants: Exposure and Fate - ERHS 448 - 3 credits
Equipment and Instrumentation - ERHS 547 - 3 credits
Environmental Health Risk Assessment - ERHS 549 - 3 credits
Cellular and Molecular Toxicology Techniques - ERHS 567 - 3 credits
Environmental Carcinogenesis - ERHS 733 - 3 credits

Other Requirements:

Seminar (1 credit) - Select one credit of a seminar course. Eligible seminar courses include all approved course listings in seminar format.

Out of Department Requirement (3 credits) - Three credit minimum of 500-level or above. Eligible courses determined by advisor and graduate committee.

Electives (7 credits) - No more than a total of four (4) credits in Independent Study, Group Study, Research and Internship course numbers may be included.

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Contact Us:
Center for Environmental Medicine
1680 Campus Delivery
Fort Collins, CO  80523-1683

(970) 491-3129

(970) 491-7569