Environmental health officer

Environmental Health Officers (also known as Public Health Inspectors or Environmental Health Practitioners) are responsible for carrying out measures for protecting public health, including administering and enforcing legislation related to environmental health and providing support to minimize health and safety hazards. Environmental Health Officers keep our water, food, air, land, facilities and other environmental factors (factors external to a person) safe of health hazards, whether biological, chemical or physical. They also address the related factors that impact behaviours. Environmental Health Officers assess and control environmental factors that can potentially affect health, to prevent disease and create health-supportive environments. Environmental determinants of health play a major role in a community’s overall health and well-being, and thus Environmental Health Officers are essential in improving population health outcomes and reducing the burden of disease.

Environmental Health Practitioners are multi-skilled in many areas with individuals being highly trained, usually to degree level, and often requiring additional professional training, professional competency assessment and continuing professional development in order to continue to practice in the field. They are involved in a variety of activities, including, but not limited to: conducting public health inspections (e.g., of food facilities, swimming pools, personal service establishments, conveyances, septic systems, wells, water treatment systems, etc.), investigating public health nuisances, developing policies and guidelines, responding to public health emergencies, investigating disease outbreaks, implementing disease control measures, performing health promotion and health education activities, conducting workplace safety assessments and accident investigations. Environmental Health Officers are focused on prevention, consultation, investigation, and education of the community regarding health risks and maintaining a safe environment.

EHOs bring to the position an understanding of microbiology, epidemiology, parasitology, chemistry, toxicology, risk assessment, law, environmental science and technology, pest control, food science, the built environment, and other relevant fields. They also have the knowledge and skills for the tracking and control of communicable diseases, investigation of environmental health related incidents and criminal investigations. They therefore must have strong investigative skills and a thorough understanding of the application of legislation related to public health, the built environment, pollution control and workplace safety. Working in partnership with Government Ministries (such as Health, Agriculture and Environment), local municipalities, businesses, community groups, other agencies and individual members of the community, the EHO plays a major role in protecting public health.

Other titles that currently exist include environmental health specialist/practitioner/professional, public health officer, health officer, public health inspector, health inspector, and health official. The legal title used will depend on the definitions found in local legislation/jurisdiction. Some past/historic titles include inspector of nuisances, sanitarian, and sanitary inspector.

Environmental health professionals are usually employed by local, state or federal health departments to advise on and enforce public health standards. However, many are employed in the private sector, the military and other third sector agencies such as charities and NGOs.


The following represents jobs that can be found in either the public or private sectors:

  • Inspection and enforcement services
  • Environmental health consulting and education
  • Communicable disease investigations and outbreak control
  • Contact tracing and case & contact management
  • Food safety course training
  • Community planning
  • Sewage disposal (septic) systems planning
  • Floor plan review and approval
  • Housing standards/quality inspection and control
  • Infection Prevention and Control (IPAC)
  • Urban renewal
  • Pest control
  • Emergency contingency planning and implementation
  • Noise control
  • Air quality monitoring
  • Health and safety at work inspection and control
  • Water protection and testing (drinking water & recreational water)
  • Radon risk assessment in buildings
  • Environmental sampling, analysis and results interpretation
  • Tobacco and vapour products control & reduction
  • Community care facilities licensing
  • Quality improvement

The common identifier of environmental health personnel is that they are responsible for the identification, evaluation and management of risks to human health from factors in the environment, whether on behalf of government agencies or commercial and industrial concerns.


An Environmental Health Officer (also known as a Public Health Inspector) investigates health hazards in a wide variety of settings, and will take action to mitigate or eliminate the hazards. Usually the public perception of a health inspector is someone who examines restaurants and ensures they maintain sanitary standards for food safety set by the regulating authority. However, Environmental Health Officers have much broader job duties, including inspecting swimming pools, substandard housing conditions, shelters, public schools, day cares, nursing homes, conveyances (e.g. cruise ships, ferries, airplanes, trains) and personal service establishments (e.g. tattoo parlours, tanning salons, beauty salons, laser hair removal facilities, barbershops). Environmental Health Officers permit and inspect wells, private water systems, and individual subsurface sewage disposal (septic) systems. Other tasks include: campground inspections, special events inspections, waste management inspections, petting zoo inspections, correctional facility inspections, mobile home park inspections and homeless encampment inspections. Trained in communicable disease control & prevention, during a disease outbreak they investigate and recommend/apply interventions to stop the spread of disease. Also trained in non-communicable disease (NCD) prevention and control, they work to prevent NCDs and control risk factors. The Public Health Inspector (Environmental Health Officer) also plays a vital role in community projects such as those concerning health promotion, health equity, tobacco reduction, healthy built environments/healthy communities, food security, and emergency preparedness.

They may also respond to complaints such as animal bites (rabies control), garbage complaints, noise complaints, odor complaints, or sewage overflows. Due to their educational background and training they can provide information and referrals with regards to: lead, radon, mold, and emerging diseases (e.g. West Nile Virus, Avian Flu, COVID-19). The field also overlaps with hazardous materials (Hazmat) and many Hazmat responders are Licensed Environmental Health Practitioners or Registered Environmental Health Specialists.

During a public health emergency such as a pandemic, they take on crucial emergency response roles, provide public education & advice, enforce public health orders, and take necessary actions to protect public health. Likewise, they respond to other emergencies such as natural disasters, with roles outlined in emergency response plans.

Working conditionsEdit

Environmental health officers work with many different people in a variety of environments. Their jobs often involve considerable fieldwork, and some travel frequently. Many environmental health officers work long and often irregular hours. They inspect pools, childcare centers, restaurants, septic systems, and many other types of establishments that relate to health and safety.

Environmental health officers may be exposed to many of the same physically strenuous conditions and hazards as industrial employees, and the work may be performed in unpleasant, stressful, and dangerous working conditions. They may find themselves in an adversarial role if the management of an organization disagrees with the recommendations for ensuring a safe working environment.


The field of environmental health can be traced back to the 1840s in England. Edwin Chadwick, a Poor Law Commissioner, conducted an inquiry into the causes of poverty which concluded that people often became poor because of ill health due to a bad environment. He believed that improving sanitation was the key to breaking this vicious cycle.

Chadwick led a vigorous campaign for change which eventually won over the establishment, resulting in the Public Health Act 1848. The Act provided for the appointment of Inspectors of Nuisances – the forerunners of today's environmental health practitioners – in areas of need.

The Association of Public Sanitary Inspectors – the organization which was to become the United Kingdom's Chartered Institute of Environmental Health – was established in 1883. Over subsequent decades, the role of environmental health practitioners changed and grew, with standards of qualification rising until, in the 1960s, it became a graduate profession. The grant of a Royal Charter in 1984 set the seal on this enhanced role and status. As a result of changing roles, the titles have changed over the decades from inspector of nuisances -> sanitary inspector -> public health inspector / environmental health officer (see Inspector of Nuisances below). This is also true internationally, as the titles have changed to reflect the advanced education and roles of environmental health officers today.

Inspector of NuisancesEdit

An Inspector of Nuisances was the title of an office in several English-speaking jurisdictions. In many jurisdictions this term is now archaic, the position and/or term having been replaced by others. In the United Kingdom from the mid 19th century this office was generally associated with public health and sanitation.

The first Inspector of Nuisances appointed by a UK local authority Health Committee was Thomas Fresh in Liverpool in 1844. Both the Nuisances Removal and Diseases Prevention Act 1855 and the Metropolis Management Act 1855 defined such an office but with the title of 'Sanitary Inspector'. In local authorities that had established a Board of Health, the title was 'Inspector of Nuisances'. Eventually the title was standardized across all UK local authorities as 'Sanitary Inspector'. An Act of Parliament in 1956 later changed the title to 'Public Health Inspector'. Similar offices were established across the British Empire and Commonwealth. The nearest modern equivalent of this position in the UK is an 'Environmental Health Officer'. This title being adopted by local authorities on the recommendation of Central Government after the Local Government Act 1972.

In the United States, a modern example of an officer with the title 'Inspector of Nuisances' but not the public health role is found in Section 3767[7] of the Ohio Revised Code which defines such a position to investigate nuisances, where this term broadly covers establishments in which lewdness and alcohol are found. Whereas the environmental health officer role in US local authorities is taken by officers with the titles 'Registered Environmental Health Specialist' or 'Registered Sanitarian' depending on the jurisdiction. The role in the US Public Health Service is undertaken by Commissioned (uniformed) 'Environmental Health Officers'.


Environmental health is a graduate career in most countries. The minimum requirements in most countries include an approved university degree program, field training and professional certification & registration.

Australia – GeneralEdit

Environmental Health Australia accredits Australian Environmental Health Degree and Graduate Diploma programs in accordance with the Environmental Health Australia Accreditation Policy to ensure course content meets nationally consistent requirements for practice as an EHO anywhere in Australia. As at 1 July 2009 there are EHA-accredited Universities in every State and the Northern Territory.

Victoria, AustraliaEdit

The current requirement to become an authorised officer under the Food Act 1984 in Victoria are defined by the Secretary of the Department of Health and Human Services. A range of undergraduate and graduate qualifications from Victoria, interstate and overseas are acceptable.[1]

Western AustraliaEdit

The Health Act 1911 (as amended) defines the role of 'environmental health officer', and empowers the Executive Director, Public Health to appoint EHOs to local government health authorities and as public health officials employed by State government. The Executive Director, Public Health is advised by the Western Australian Environmental Health Officers Professional Review Board on graduate and postgraduate qualifications that are deemed suitable to allow Environmental Health practice in Western Australia, and the qualifications are published from time to time in the Government Gazette.

Currently Curtin University of Technology and Edith Cowan University offer Environmental Health degrees in Western Australia which are also accredited by Environmental Health Australia.


Environmental Health Officers/Public Health Inspectors must hold at least a bachelor’s degree in environmental health and a national professional certificate – the Certificate in Public Health Inspection (Canada), CPHI(C).

Certification and registration is regulated by the Canadian Institute of Public Health Inspectors (CIPHI). To become nationally certified, public health inspectors must complete an approved degree program, complete a field training practicum, and pass the Institute's Board of Certification examination (consisting of written reports and an oral examination). To maintain the CPHI(C) credential, practitioners must be registered with CIPHI and submit professional development hours annually.

Only six schools in Canada offer degree programs approved by CIPHI as meeting the educational requirement for certification: British Columbia Institute of Technology, Cape Breton University, Concordia University of Edmonton, Conestoga College Institute of Technology and Advanced Learning, Toronto Metropolitan University, and Université de Montréal. These programs are generally four years long, however fast-track programs are available in some schools for those who have a previous science degree.

New ZealandEdit

Entrants to the profession must have either a BAppSc Health Protection or BHSc Environmental Health. Alternatively, suitably qualified science graduates can obtain a graduate diploma in environmental health.

Republic of IrelandEdit

To become an Environmental Health Officer it is necessary to hold an environmental health degree approved by the Department of Health & Children. The study of Environmental Health in Ireland also requires students to undertake a period of professional practice with the Health Service Executive. Following the period of professional practice, competence must then be demonstrated through an experiential learning logbook and oral examination.

Sri LankaEdit

For Sri Lanka, see article: Public Health Inspector (Sri Lanka).

United Kingdom of Great Britain & Northern IrelandEdit

EHOs hold at least an undergraduate (or postgraduate) qualification recognised by (in England, Wales and Northern Ireland) the Chartered Institute of Environmental Health.[2] Similar provisions exist in Scotland, where the profession is regulated by The Royal Environmental Health Institute of Scotland.

Following the educational requirements and practical training period, competence must then be demonstrated through an experiential learning logbook and oral examination before registration is granted.

See alsoEdit


  1. ^ Services, Department of Health & Human. "Environmental health officer qualifications". www2.health.vic.gov.au.
  2. ^ "Environmental Health Officer". Careers Advice. Archived from the original on 2008-09-24. Retrieved 2008-10-29.

External linksEdit