Factors like excess heat, cold, and insufficient lighting that can add difficulty to jobs.
Factors in the environment which may have an effect on our development or growth eg. diet, atmospheric pollutants, cigarette smoke, preservatives, X-rays etc.
Aspects of an organism's surroundings and experiences, such as diet and air temperature.
Factors in the aircraft and flightdeck environments that affect flightdeck activities, including weather conditions, turbulence, illumination, temperature, etc.
The uncontrollable factors involving natural, social, economic, competitive, regulatory, and technological forces.
The factors surrounding a process. Depending on the physical location, these could include such as lighting, noise, ambient temperature.
aspects of job design that influence the frequency of human error. These factors can include ergonomic factors, lighting, temperature, work pace, fatigue, etc.
Uncontrollable forces such as politics, competitive and economic factors, legal and regulatory issues, technological changes and socio-cultural issues. p. 157