Environmental Health Sciences

Program Category: PhD Programs

Chair: Andrea Baccarelli

Website: mailman.columbia.edu/become-student/degrees/doctoral-programs/phd/environmental-health-sciences

Degree Programs: Full-Time PhD

Please note: The degree for this program is conferred by GSAS, but program specifics, such as admissions, degree requirements, and financial aid, are administered by other schools of the university.

A small student-to-faculty ratio, along with dedicated, world-class faculty, helps to provide ample opportunity for PhD candidates to work closely with our faculty members on their multidisciplinary collaborative research projects. The department is also home to two research centers: the Columbia Center for Children's Environmental Health (CCCEH) and the Columbia Center for Environmental Health in Northern Manhattan (CCEHNM). The CCCEH supports research related to the health effects of maternal exposure to environmental toxins on the fetus, as well as the health effects from exposure in childhood. The CCEHNM supports research on the health consequences of environmental exposures prevalent in underrepresented populations. The faculty's collaborative research spans the Columbia campus and extends beyond the university. Several investigators conduct projects abroad, in countries including Bangladesh, China, and Kenya. Therefore there are many opportunities for students to be involved in international research. Our research is broad in scope, ranging from molecular epidemiology to genetics to neurotoxicology.

More information on EHS Programs and Centers is available through the Mailman School of Public Health website.

Full funding is available for all PhD candidates. In addition to research, teaching is considered an important aspect of the training of doctoral students. Thus, all PhD candidates serve as Teaching Fellows; as such they collaborate once a year with a faculty member on a course taught to Master of Public Health students.  Candidates obtain research experience by fulfilling up to three rotations with members of the training faculty.

Special Admissions Requirements: 

In addition to the requirements listed below, all students must submit one official transcript showing courses and grades for each school attended, a statement of academic purpose, and three letters of evaluation from academic sources.

All international students whose native language is not English or whose undergraduate degree is from an institution in a country whose official language is not English must submit scores from the Test of English as a Foreign Language (TOEFL) or IELTS.

For more information, refer to our Admissions and Frequently Asked Questions pages.

Resume Requirement: Yes
Writing Sample: Yes
GRE General: Yes
GRE Subject: No
Degree Programs: Full Time



An undergraduate degree in the basic sciences, particularly biology and chemistry, are considered appropriate academic preparation for this doctoral program. As a minimum, applicants must have completed one year each of the following: general chemistry, organic chemistry, biology, and mathematics. For more detailed information, see the bulletin of the Mailman School of Public Health.