Difference between hazard and risk 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. Hazards can be divided into two basic categories: Acute Hazard – these are hazards that pose obvious issues and would impact instantly. An example of this would be a liquid spillage, causing an immediate danger of somebody slipping over and hurting themselves. Chronic Hazard – these hazards are not immediately apparent, and can have more of a hidden issue, sometimes only arising after long periods. An example of this would be the build-up of workplace stress or the gradual decline of a piece of machinery. All hazards, whether acute or chronic fall into six core categories. Physical – It refers to the stereotypical workplace hazard most of us would think of, for example, lighting issues, objects obstructing walkways, unsafe machinery, spillages on floors. Chemical – This includes any form of liq...