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Technological and scientific developments have been responsible for the creation of thousands of new compounds, many of which can pose a threat to human health. The measurement and analysis of the harmful effects of chemical, biological, and physical agents on living organisms, particularly human health, defines the field of Toxicology.

The Department of Environmental Health Sciences offers the Master’s of Science degree with a track in Toxicology. This program provides students with expertise and training in environmental exposure, regulation, and mitigation. In addition to rigorous coursework in toxicology, students gain conceptual and methodological foundations in biostatistics and epidemiology, as well as critical thinking and practical skills through hands-on experiences. This degree also has a part-time option.

In addition to full time academic faculty with globally recognized expertise and research, our faculty includes instructors with real-world experience, enhancing the practical, career-oriented aspects of the curriculum.

Course of Study

The 40-credit program includes coursework in risk assessment, industrial hygiene, environmental hygiene, fundamentals of toxicology, toxicokinetics, molecular toxicology, and a unique hands-on laboratory course that utilizes state of the art techniques used in environmental studies. To gain experience working in the field, all students complete a three-month practicum as a part of the program. The Toxicology track is designed to be completed in 12 months but can accommodate part-time students, who may take up to three years to complete the program.


Graduates with a MS degree in Toxicology are well qualified for careers in local and regional departments of health, federal agencies such as the EPA, FDA, CDC, academic Health and Safety Offices, private companies involved in environmental risk assessment and mitigation, non-governmental organizations and many others.


Applicants may have an undergraduate degree in any field, but should be able to demonstrate a solid fundamental background in biology and chemistry and have at least one semester of calculus. Applications are due June 1 of each calendar year to begin studies the following fall, and should include college transcript(s), a personal statement detailing the applicant's reasons for applying, and three letters of reference. Application requirements and submission instructions can be found here.

Learn More

View competencies, course requirements, sample schedules, and more.

Contact Us

Nina Kulacki
Director of Academic Programs
Department of Environmental Health Sciences
Columbia University
(212) 305-3466