Public/Environmental Health is concerned with the health of populations and communities at large, and the effects of the environment on human health. Health status and outcomes at the population level can be impacted by public health policies, resource allocation, and laws which uphold standards of practice. Human health is also impacted by environmental health, including water and air quality, sanitation, and waste management practices.

Public/Environmental Health workers have completed a science or health science degree, with a Public/Environmental Health major or postgraduate study. They provide services which investigate, assess, and advise on public and environmental health and safety matters, such as food safety, infectious disease transmission, injury prevention, and environmental management. Many job roles monitor and enforce laws and regulations that promote good health and environmental practices. Job opportunities exist in a variety of settings, such as government agencies or private companies.