Explore occupational profile

Version:
OaSIS 2025 Version 1.0
Search the OaSIS

41400.02 – Occupational or industrial hygienists

Occupational and industrial hygienists conduct research, prepare reports, provide consultation and advice, and administer programs related to physical and chemical hazards and stresses in the workplace.

Overview

Example job titles

  • Industrial hygienist
  • Occupational hygienist

Core competencies

  • Critical Thinking, Decision Making and Problem Solving to conduct studies into the physical, chemical and biological hazards and stresses in the workplace and develop improvement plans for clients
  • Evaluation and Systems Analysis to analyze the work environments and contributing factors to determine the physical hazards and stresses in the workplace
  • Pattern Identification to identify recurring issues effectively to develop prevention strategies and improve workplace safety
  • Problem Identification and Inductive Reasoning to detect hazardous conditions before they cause health issues and to provide a basis for assessing the level of risk associated with various hazards
  • Collaboration to collaborate with other professionals for a thorough assessment of workplace hazards, including engineers, safety officers and health professionals
  • Knowledge in Public Safety and Security to understand safety principles to manage risks effectively, including identifying potential safety threats and implementing controls to prevent accidents and injuries in the workplace

Main duties

This group performs some or all of the following duties:

  • Study, evaluate and control physical, chemical and biological hazards and stresses in the workplace
  • Report and document investigations and conclusions
  • Suggest changes to work environments and processes
  • Provide information to workers and managers or employers on methods to reduce the risk of injury or illness from specific occupational hazards
  • May teach safe work procedures, participate in emergency response planning, testify at hearings and report findings at scientific conferences or in scientific journals.

Additional information

  • Progression to supervisory or managerial positions in these fields is possible with experience.

Similar occupations classified elsewhere

Exclusions:

  • Chemists (21101)
  • Geoscientists and oceanographers (21102)
  • Meteorologists and climatologists (21103)
  • Other professional occupations in physical sciences (21109)
  • Physicists and astronomers (21100)

NOC hierarchy breakdown

O*NET in-it

This page includes information from the O*NET 27.2 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET® is a trademark of USDOL/ETA. Employment and Social Development Canada has modified all or some of this information. USDOL/ETA has not approved, endorsed, or tested these modifications.