Master of Science in Toxicology Master of Science in Toxicology [Thesis]
The Master of Science in toxicology (Plan A) at Colorado State University is a rigorous research-focused program designed to prepare you for doctoral studies, professional school, or impactful careers in industry, government, and consulting. This program delves into the effects of chemicals and other potentially harmful agents on human, animal, and environmental health, equipping you with both foundational knowledge and hands-on research experience in the field of toxicology. This training will also equip you with key insights into the mechanisms that drive disease and their broader impact on public health.
Complete in-depth research on a topic approved by your advisor, defend your work, and finalize a thesis that adds new knowledge to the scientific field. If you want to contribute original research to the field and pursue advanced opportunities in toxicology, this path is ideal for you.
Environmental and Radiological Health Sciences
The Department of Environmental and Radiological Health Sciences is home to one of the largest environmental health programs in the nation, and the only one that incorporates radiological health into its core curriculum. Students and researchers in environmental health investigate how natural and built environments affect human and animal health and seek solutions to minimize negative health consequences of environmental and workplace exposures. Radiological health has a long tradition at CSU focused on the biological effects of radiation, including laboratory studies of the damaging effects of radiation, and clinical uses of radiation in diagnostic imaging and cancer therapy.
Program Highlights
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Research-intensive curriculum
Engage in comprehensive research leading to a thesis, fostering expertise in toxicology.
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Publication requirement
Aim to produce one to two first-author publications in peer-reviewed journals, demonstrating scholarly contribution to the field.
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Thesis defense
Present and defend your research findings to a committee of experts, showcasing your proficiency and readiness for advanced roles.
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Flexible transition
Students enrolled in the non-thesis track may transition to the thesis option after their first semester, provided they secure a faculty sponsor for their research.
Research Opportunities
As a thesis-track student in our program, you’ll engage in original research that addresses today’s most urgent toxicological challenges. From uncovering how environmental exposures affect human health to advancing safety in pharmaceuticals and agriculture, your work will contribute to real-world solutions that improve human, environmental, and animal health.
Through close mentorship with faculty and access to state-of-the-art laboratories, you'll gain hands-on experience with advanced analytical techniques, in vivo and in vitro models, and data interpretation that equips you for scientific leadership.
You'll have the opportunity to:
- Push the boundaries of scientific knowledge by asking novel research questions and contributing to peer-reviewed publications.
- Develop and defend a thesis that reflects deep expertise and positions you for future academic or professional success.
- Collaborate across disciplines to understand toxicological problems in context – whether in environmental science, veterinary medicine, human medicine, epidemiology, occupational health, public health, or regulatory policy.
- Apply your findings to real-world scenarios such as disease prevention, chemical risk assessment, and environmental restoration.
Join a research community committed to advancing toxicology and protecting the health of communities and ecosystems worldwide!
Career Opportunities
Scientific discovery meets societal impact
Our program prepares graduates for research-driven and analytically demanding careers in academia, government, industry, and public health. With a foundation in experimental design, data analysis, and scientific communication, our graduates are equipped to lead toxicological investigations, support regulatory decisions, and advance innovations in chemical safety.
This research-intensive degree is ideal for students who plan to attend professional school, launch a career where strong scientific inquiry and technical expertise are essential, or pursue a Ph.D. The thesis component demonstrates the ability to conduct independent research – an asset highly valued in both scientific and regulatory careers.
Graduates apply their training in roles that shape environmental policy, enhance public health protections, better understand mechanisms of disease and inform product development across sectors such as pharmaceuticals, environmental consulting, biotech, and chemical risk management.
- Toxicology researcher/laboratory scientist: Conduct independent or collaborative research on toxic mechanisms, dose-response relationships, and chemical exposures.
- Regulatory toxicologist: Design and interpret safety studies to support regulatory submissions to agencies such as the EPA, FDA, or OECD.
- Environmental health scientist: Evaluate exposure pathways and health risks from environmental contaminants to guide risk mitigation and policy development.
- Public health toxicologist/epidemiology analyst: Analyze toxic exposures at the population level and contribute to disease prevention strategies.
- Academic research associate/Ph.D. trainee: Continue in advanced research programs or support faculty research in universities and academic medical centers.
- Science policy fellow/science communication specialist: Translate research findings into policy recommendations or public education materials for scientific organizations or NGOs.
Application Information and Deadlines
Students must secure a research advisor prior to applying. Developing a specific thesis topic is also recommended.
Interested applicants must have a minimum GPA of 3.0 to be considered for this program.
To apply, complete the Online Graduate Application via the Graduate School.
| Date | Action |
|---|---|
| April 1 | Priority Consideration Deadline (for Domestic Applicants) |
| May 1 | Fall Application Deadline (for International Applicants) |
| July 1 | Fall Application Deadline (for Domestic Applicants) |
| September 1 | Spring Application Deadline (for International Applicants) |
| November 1 | Spring Application Deadline (for Domestic Applicants) |
Contact Us
Have questions about the program, minimum requirements, application process, or tuition and financial aid? Fill out the contact form to get in touch with our program staff.
Tuition and Financial Aid
Visit the Office of Financial Aid to apply for financial aid opportunities like scholarships, grants, loans, and student employment, understand tuition, fees, and the billing process, establish residency, and find other financial aid resources.
Fort Collins, Colorado
Fort Collins blends education and industry, hard work and outdoor recreation, tradition and progress. If you’re looking for a college experience with the perfect fusion of culture, opportunity and adventure, Fort Collins is where you’ll find it.
Located at the foothills of the Rocky Mountains, Fort Collins provides extensive access to hundreds of miles of trails for biking and hiking, world-class fishing and rock climbing, and camping, all in an area with over 300 days of sun per year.