9th May, 2019

The Definition Of A Hazard And 45 Workplace Examples

In health and safety, a hazard is anything with the potential to cause harm. It might not have harmed anyone yet. But if it could cause harm, then it is a hazard. In this post, we look at the definition of hazard in health and safety, and some common examples of workplace hazards.

The Definition Of A Hazard And 45 Workplace Examples header image

If you are going to carry out any sort of health and safety responsibilities, as an employer, or an employee, you need to know what a hazard is. Why? Because knowing what hazards are is critical to health and safety.

The first step of the 5 steps to risk assessment, identify hazards. And risk assessments are a legal requirement. But don't worry if you're not exactly sure what a hazard is, or even how it is different to a risk. By the end of this post, you will.

So, what is a hazard?

The definition of a hazard

In health and safety, a hazard is anything with the potential to cause harm. It might not have harmed anyone yet. But if it could cause harm, then it is a hazard.

A potential source of danger.

So when someone refers to a hazard, or you are being asked to spot hazards, this means something that could cause harm. There could be many hazards in your workplace. A task or activity could involve multiple hazards. This doesn't mean you are any more likely to come to harm than an activity with few hazards.

A hazard could be a trailing cable in a corridor that someone could trip over. Or a loose leaning pile of bricks that could topple over. Or a sharp edge that could cut you. Or an obstacle at head height that you have to remember to duck under. Or a faulty light switch you know never to use. Or an icy path on a snowy morning.

Just because something has the potential to cause harm, doesn't mean it will harm you. It might be unlikely to harm you. And the harm it could cause might not be serious. Finding out the likelihood and severity of harm is what's known as risk, and that comes after you identify hazards.

How is a hazard different to a risk? Not sure? Find out in our blog post the difference between hazard and risk.

In fact, sometimes hazards are overlooked simply because they are unlikely to harm you. When you work around a hazard regularly, and it hasn't caused any harm, people can get complacent. Maybe you have been lucky. Or maybe that hazard is unlikely to cause harm. Or maybe it is causing harm, but you just don't realise it yet. Some health hazards, like asbestos and silica dust, take years for illness to develop.

A hazard is something with the potential to cause harm. Anything that might harm you, or others, is a hazard. Hazards come in many forms. A hazard could be a substance. It could be an item of equipment. It could be a material. It could even be other people.

Workplace examples of hazards

Now we know the definition of a hazard, and what a health and safety hazard means. Let's look at some common examples of hazards that might be present in your workplace.


The work activities you carry out may create or introduce hazards. This is especially likely in higher risk work like construction, manufacturing and workshops. Your tasks might introduce hazards for you, but also if you work in remote environments, for other people and building occupants.

cleaning signs
Does your work introduce hazards?
  1. Work at height
  2. Confined spaces
  3. Vibration
  4. Machinery
  5. Equipment
  6. Work on or near water
  7. Hot work
  8. Lifting operations
  9. Lone work

Substances and Materials

Certain substances and materials used in your business activities, or present in your workplace, can be hazardous to health. They might also be a safety hazard, for example, flammable or explosive substances. This type of hazard will often come under the Control of Substances Hazardous to Health (COSHH) Regulations, or their own regulations, e.g. asbestos.

concrete chute
What about the substances you use or create?
  1. Asbestos
  2. Cement
  3. Silica dust
  4. Wood dust
  5. Paint
  6. Varnish
  7. Chemicals
  8. Cleaning substances
  9. Fuels
  10. Biological hazards


The equipment that you use can also be a hazard. For example, ladders are often used for access, but are they a hazard? Absolutely. Work on ladders is a common cause of falls from height, which is one of the top 5 causes of workplace deaths and serious injuries.

Falls from height are one of the biggest causes of workplace fatalities and major injuries. Common causes are falls from ladders and through fragile roofs.

What hazards does your equipment present?
  1. Ladders
  2. Scaffolding
  3. Access equipment
  4. Mobile equipment
  5. Cranes
  6. Lifting equipment
  7. Forklift trucks
  8. Power tools
  9. Hand tools
  10. Blades
  11. Rotating parts
  12. Display screen equipment (DSE)
  13. Electrical hazards


Don't forget to spot hazards in your environment. These hazards might not always be created by the work you do. They could be related to the weather. Or caused by other work that is taking place. They might be changeable. They might sometimes be present, or always be there.

Does the environment have hazards?
  1. Noise
  2. Dust
  3. Sun exposure
  4. Wind
  5. Rain
  6. Ice
  7. Underground services
  8. Overhead services
  9. Poor lighting
  10. Slips and trips
  11. Access restrictions
  12. Vehicles
  13. Other people

Remember, a hazard is anything with the potential to cause harm. What hazards can you spot in your workplace? Once you spot them, use our free risk assessment calculator to find out the risk level.

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This article was written by Emma at HASpod. Emma has over 10 years experience in health and safety and BSc (Hons) Construction Management. She is NEBOSH qualified and Tech IOSH.

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