This represents the alert coverage of sirens installed on dams. Some approximations have been made by generating buffers with a predefined coverage radius based on the technical specifications of the sirens, while others have employed acoustic propagation models that incorporate factors such as attenuation, sound dispersion, and the influence of topography.

Distance of 1 km radius around each radiological surveillance (IVR) facility. Municipalities within the radius have the obligation to draft a municipal action plan for radiological risk.

Municipalities within a distance of 1 km around each radiological surveillance facility (IVR). Therefore, municipalities are obliged to draw up a municipal action plan for radiological risk.

Thematic coverage of the municipalities of Catalonia in which the obligation or recommendation of the municipality to draw up the Specific Municipal Plan (PEM) for emergencies due to episodes of pollution downstream of the Flix reservoir is represented, as well as the current status of the plan

Municipalities where the radioactive facilities are located and the number of sources according to their category.

Thematic coverage of the municipalities of Catalonia in which the municipality's obligation to strengthen the Basic Municipal Emergency Plan (PBEM) for the risk of an aeronautical emergency, the reason for this and the plan's current status is represented.

Thematic coverage of the municipalities of Catalonia in which the obligation or recommendation of the municipality to draw up the Municipal Action Plan (PAM) for emergency risk due to pandemic is represented, as well as the plan's current status.

Municipalities in Catalonia obliged to develop a municipal action plan in a nuclear emergency (PAMEN).

Polygons which define the range of sound corresponding to the alarms. In accordance with each type of alarm, the sound radius covered can be 800 or 400 metres away from the siren, or maybe unidirectional, covering a distance of 700 m with a 70º opening.

Coverage of the road network affected by the transport of dangerous goods, representing the level of danger of each section in relation to the transport of dangerous goods. The danger level takes into account, apart from the flow of dangerous goods, the type of substances transported.