Accidents involving hazardous substances

Accidents involving hazardous substances are large-scale accidents on industrial sites. There are many companies using hazardous substances that pose such a risk. The risk may affect a large or small area within the surroundings. Companies posing a risk to a very small area are not indicated on the risk map.
The consequences partly depend on the substance involved in the accident.

Hazardous substances
There are different types of hazardous substances. It would be going too far to mention them all here. A substance is a hazardous substance if it is toxic, flammable or explosive, or if it has a combination of these characteristics.