- Physical hazard: A physical hazard is an agent, factor or circumstance that can cause harm with or without contact. Examples are: Slippery floors, objects in walkways, unsafe or misused machinery, excessive noise, poor lighting, fire, etc.
- Chemical hazards: A chemical hazard is a type of occupational hazard caused by exposure to chemicals in the workplace. Exposure to chemicals in the workplace can cause acute or chronic detrimental health effects. Examples include: Gases, dusts, fumes, vapours and liquids.
- Ergonomic hazards: Ergonomic hazards are physical conditions that may pose risk of injury to the musculoskeletal system, such as the muscles or ligaments of the lower back, tendons or nerves of the hands/wrists, or bones surrounding the knees, resulting in a musculoskeletal disorder. These include poor design of equipment, workstation design, (postural) or workflow, manual handling, repetitive movement, etc.
- Biological hazards: Biological hazards are a biological substances that pose threat to the health of living organisms, primarily humans. They include pathogenic micro-organisms, viruses, toxins (from biological sources), spores, fungi and bio-active substances.
- Psychological hazard: A psychological hazard is any occupational hazard that affects the psychological and physical well-being of workers, including their ability to participate in a work environment among other people.
- Environmental hazards: An environmental hazard is a substance, a state or an event which has the potential to threaten the surrounding natural environment / or adversely affect people’s health, including pollution and natural disasters such as storms and earthquakes.