Source:
BBK
Behaviour - release of hazardous substances
What is a hazardous substance?
The range of hazardous substances is large. A distinction is made between chemical (C), biological (B), radiological (R), and nuclear (N) hazardous substances.
CBRN hazardous substances may occur in a gaseous or vaporous form, as aerosols, as liquids or as solids.
A lay person cannot generally recognise the danger. Therefore: if something happens, report it to the rescue coordination centre (phone: 112) or the poison information centre (ask for the number of the poison information centre near you). In the event of more serious incidents, pay attention to announcements on the radio or by loudspeaker vehicles.