What are the 4 types of workplace hazards?
Sarah Smith
Published Jan 10, 2026
There are many types of hazards - chemical, ergonomic, physical, and psychosocial, to name a few - which can cause harm or adverse effects in the workplace.
What are 4 common workplace hazards?
4 Types of Workplace Hazards
- Physical Hazards. Physical hazards are the most common type of workplace hazards. ...
- Biological Hazards. ...
- Ergonomic Hazards. ...
- Chemical Hazards.
What are the four 4 types of hazards?
There are four types of hazards that you need to consider:
- Microbiological hazards. Microbiological hazards include bacteria, yeasts, moulds and viruses.
- Chemical hazards. ...
- Physical hazards. ...
- Allergens.
What are the 5 basic workplace hazards?
What are the 5 major hazards in the workplace?
- Falls and Falling Objects.
- Chemical Exposure.
- Fire Hazards.
- Electrical Hazards.
- Repetitive Motion Injury.
What are the common types of hazards?
Types of Hazard
- Safety hazards. Safety hazards can affect any employee but these are more likely to affect those who work with machinery or on a construction site. ...
- Biological hazards. Biological hazards are extremely dangerous. ...
- Physical hazards. ...
- Ergonomic hazards. ...
- Chemical hazards. ...
- Workload hazards.
What is the most common workplace hazard?
Physical Hazards
This is the most common type of workplace hazards. Examples of physical hazards include slips, trips, falls, exposure to loud noises, working from heights, vibrations, and unguarded machinery.
What are the 4 OSHA categories?
OSHA standards fall into four categories: General Industry, Construction, Maritime, and Agriculture.
What are workplace hazards?
Workplace hazards are the sources of potential harm or damage to someone or something in any work environment. It can be material or any activity that has the likelihood to cause injuries under specific conditions. It should be eliminated as soon as they are identified to prevent workplace incidents or fatalities.
What are the 4 hazard risks?
We've listed out the 4 most common ones - physical, ergonomic, chemical, and biological. Physical hazards are often associated with uncontrolled sources of energy that could harm the body, even without necessarily touching it.
How do you identify workplace hazards?
Incident records and investigations, near misses, health monitoring and inspection results will all help identify hazards. If someone has been injured, then a hazard exists which could also hurt someone else. Hazards usually arise from: The physical work environment.
What is a hazard category 4?
For gases and some reproductive toxins, the categories are listed by names rather than numbers or letters. This ranking system where 1 = the greatest hazard and 4 = the least is the exact opposite of the NFPA and HMIS® systems, and is a serious potential point of confusion for untrained workers.
What are three major hazard groups?
GHS consists of three major hazard groups :
- Physical hazards.
- Health hazards.
- Environmental hazards.
What are 3 things required on workplace label?
In general, a workplace label will require the following information:
- Product name (matching the SDS product name).
- Safe handling precautions, may include pictograms or other supplier label information.
- A reference to the SDS (if available).
What is a Category 1 hazard?
Category 1 hazards are those where the most serious harm outcome is identified, for example, death, permanent paralysis, permanent loss of consciousness, loss of a limb or serious fractures.
Which hazard category is the most severe?
There are a few hazard classes with five or more categories (e.g., organic peroxides). The category tells you about how hazardous the product is (that is, the severity of hazard). Category 1 is always the greatest level of hazard (that is, it is the most hazardous within that class).
What are the 4 hazardous materials?
Class 1: Explosives. Class 2: Gases. Class 3: Flammable Liquids. Class 4: Flammable Solids or Substances.
What is a Class 6 hazard?
Hazard Class 6 consists of two divisions: Division 6.1 includes toxic substances, poisons, and irritating material. Examples of Division 6.1 materials (not all of which are mailable) include bromobenzyl cyanide, methyl bromide, motor fuel anti-knock mixtures, and tear gas. Division 6.2 includes infectious substances.
What is example of hazard?
A hazard is something that can cause harm, e.g. electricity, chemicals, working up a ladder, noise, a keyboard, a bully at work, stress, etc. A risk is the chance, high or low, that any hazard will actually cause somebody harm. For example, working alone away from your office can be a hazard.
What is the best way to avoid hazard in the workplace?
Create a Safe Work Area
- Keep an orderly workplace. Poor housekeeping can cause serious health and safety hazards. ...
- Inspect vehicles before and after use. DRIVE SAFELY.
- Continually cultivate a safety standard.
- Take breaks and move around regularly throughout the day. ...
- Pay attention to workstation ergonomics.
What are the 3 factors that cause accidents?
There are three basic causes of workplace accidents: chance occurrences, unsafe conditions, and employees' unsafe acts.
What are the 7 types of hazards?
The aim of this guide is to help you understand the different categories of hazards, so you can confidently identify them in your workplace.
- Biological Hazards.
- Chemical Hazards.
- Physical Hazards.
- Safety Hazards.
- Ergonomic Hazards.
- Psychosocial Hazards.
How do you work safely in hazardous workplace?
General Precautions
- Your safety is your personal responsibility.
- Always follow the correct procedures.
- Never take shortcuts.
- Take responsibility and clean up if you made a mess.
- Clean and organize your workspace.
- Ensure a clear and easy route to emergency exits and equipment.
- Be alert and awake on the job.
Which type of hazard can cause health problems in workers?
Physical hazards include activities or natural substances in a work environment that pose health risks. Extreme temperatures, poor air quality, excessive noise and radiation in the workplace can all harm workers, potentially causing respiratory problems, hearing loss and cancer, among other problems.
What are the 9 hazard classes?
The nine hazard classes are as follows:
- Class 1: Explosives.
- Class 2: Gases.
- Class 3: Flammable and Combustible Liquids.
- Class 4: Flammable Solids.
- Class 5: Oxidizing Substances, Organic Peroxides.
- Class 6: Toxic Substances and Infectious Substances.
- Class 7: Radioactive Materials.
- Class 8: Corrosives.
What is a Class 5 hazardous material?
Hazard Class 5 consists of two divisions: Division 5.1, Oxidizing Substances. A material that may, generally by yielding oxygen, cause or enhance the combustion of other materials. Division 5.2, Organic Peroxides.