Skip Navigation


Environmental and Occupational Health


The certificate program educates and trains students to identify major environmental health issues facing public health professionals today. Courses explore the sources of environmental agents, their distribution in community and work environments, transfer routes to humans and possible health effects; the basic biological mechanisms underlying the association between prior exposure and subsequent development of adverse health effects; and control strategies and interventions.


The certificate program is intended for public health professionals (non-degree students) who are currently practicing in environmental or occupational health or other areas of public health and seek formal graduate-level training in environmental and occupational health.  It is also offered to masters and doctoral students currently enrolled in any division or department of The Johns Hopkins University; JHSPH MAS degree students are not eligible to apply.  Non-degree students must have at least a baccalaureate degree from an accredited college or university with a strong record of successful academic performance.  

Admissions Process

Applicants should review the How to Apply page for information about eligibility and special instructions.  The certificate program's review committee will review the applications and notify each applicant of their admission decision.

Requirements for Successful Completion

The certificate requires a minimum of 18 term credits. All required and elective courses must be taken for a letter grade; a minimum grade of C is required in all certificate coursework and students must maintain a 2.75 or better overall GPA for all certificate coursework. The certificate program length is flexible, however the certificate must be completed within three years.  

The student should review the section of the website that addresses completion before completing certificate program requirements. The student's transcript will not indicate that the certificate was earned until the Notification of Completion has been submitted and verified by the certificate program and processed by the Registrar. 

Course of Study

Students should check the course catalog to confirm when courses are offered.  The term and time may change from what is listed in the table below and some courses are only offered every other year.  Students should also check for pre-requisites and if instructor consent is required.

Course No.Course TitleNo. CreditsOnline TermCampus Term

Introduction to Online Learning

All students are required to complete this free online course during their first term of study


Academic and Research Ethics at JHSPH

All students are required to complete this free online course during their first term of study

01,2,3,4, Summer-
Required courses (Students must complete three of the following five course selections; students may complete either 180.601 or 180.609 but not both)
180.601Environmental Health53S,SI
180.609Principles of Environmental Health I4-1
182.625Principles of Occupational & Environmental Hygiene442
187.610Public Heath Toxicology421
187.650Alternative Methods in Animal Testing34-
188.680Fundamentals of Occupational Health31-
Elective Courses (students complete 2-3 courses from the list below to meet the 18 credit minimum required for certificate programs)
Sustainability/Climate Change
180.607Climate Change and Public Health 3S-
180.611The Global Environment, Climate Change and Public Health4-1
180.651Energy, Environment and Public Health2-3
180.653Climate Change: Avoiding Conflict and Improving Public Health34-
185.600One Health Tools to Promote and Evaluate Healthy and Sustainable Communities34-
188.682A Built Environment for a Healthy and Sustainable Future34-
188.688Global Sustainability and Health Seminar1-2,4
Food Systems/Water
180.606Case Studies in Food Production and Public Health44-
180.614Urban Agriculture and Public Health2-SI
180.619Drinking Water and Water Policy: Avoiding Another Flint1-SI
180.620Food Systems and Public Health 42-
180.622Seafood and Public Health: From Production to Consumption 2-1
180.655Baltimore Food Systems: A Case Study of Urban Food Environments4-3
182.626Issues for Water and Sanitation in  Tropical Environmental Health2-3
182.640Food and Water-borne Diseases4-3
Occupational Hygiene/Safety/Occupational Health
180.621Protecting the Environment and Safeguarding Worker Health: A Problem-Based Approach32-
182.613Exposure Assessment Techniques for Health Risk Management333
182.614Industrial Hygiene Laboratory5-2, *SI
182.615Airborne Particles411
182.621Introduction to Ergonomics4-2, WI
182.622Ventilation and Hazard Control414
182.623Occupational Health Management33-
182.625Principles of Occupational and Environmental Hygiene442
182.631Principles of Occupational Safety2-1, WI
182.637Noise and Other Physical Agents in the Environment432
188.680Fundamentals of Occupational Health31-
188.681Onsite Evaluation of Workplace and Occupational Health Programs5-4, *SI
188.694Health of Vulnerable Worker Populations 31-
Health Security/ Infectious Diseases
180.623Infectious Disease Threats to Global Health Security3-3
180.624Biotechnology and Health Security3-3
180.630Chemical and Biological Weapons Threats: Science, Public Health and Policy34-
180.670Introduction to Public Health Emergency Preparedness3-4
182.627Lessons Learned in the 1918 Pandemic Flu1-4
Environmental Law/Environmental Justice
180.602Environmental Health in Low and Middle Income Countries2-3
180.625Community-Driven Epidemiology and Environmental Justice3-3
180.628Introduction to Environmental and Occupational Health Law44-
340.680Environmental and Occupational Epidemiology4-4
Toxicology/ Physiology/ Molecular Mechanisms
180.640Molecular Epidemiology and Biomarkers in Public Health443
180.650Fundamentals of Clinical Oncology for Public Health Practitioners3-2
183.631Fundamentals of Human Physiology442
183.638Mechanisms of Cardiopulmonary Control2-3
183.642The Cardiopulmonary System Under Stress2-4
187.625Animals in Research Law, Policy, and Humane Sciences24-
187.632Molecular Toxicology4-2
187.633Introduction to Environmental Genomics and Epigenomics3-4
187.634Analysis for Environmental Genomics and Epigenomics1-4
187.640Toxicology 21: Scientific Foundations1-2
187.645Toxicology 21: Scientific Applications3-3
187.650Alternative Methods in Animal Testing34-
187.655Evidence-Based Toxicology3-4
187.661Environmental Health In Neurological and Mental Disorders3-4
188.686Clinical Environmental and Occupational Toxicology3-3
188.688Global Sustainability and Health Seminar1-2,4

*Course offered every other year
S = Course offered in the Summer Term
SI = Course offered in the Summer Institute

Contact Information

Sponsoring Department
Environmental Health and Engineering

Certificate Program Contact
 Carla Reinhard


Faculty Sponsor
Name: Jacqueline Agnew

Gainful Employment Program Information

In accordance with US Department of Education regulations, the JHU Bloomberg School of Public Health is required to disclose graduation rate data, median loan debt data, and other select information for all Title IV eligible gainful employment programs. To see the most recent data available for this gainful employment program, please view the attached disclosure.