A workplace hazard is a situation, condition or thing that may be dangerous to health and safety. Workers are required to report workplace hazards to their employer, supervisor or other designated person on the job.

To assist with identifying hazards, the Government of Alberta breaks hazards into four categories: physical, chemical, biological, and psychosocial. Below are some examples of hazards by category. Please note that this is not an extensive list and that other hazards may exist in the workplace that are not listed here.

Physical
– slippery or uneven surfaces
– working around moving equipment
– poor lighting

Chemical
– battery acid
– fumes
– byproducts/waste products from a process

Biological
– mould
– sewage
– animal/pet waste

Psychosocial
– harassment
– fatigue
– violence

To learn more about workplace hazards, you can consult
Hazard assessment and control: a handbook for Alberta employers and workers (.pdf) from which the information in this answer was derived.