Abstract
The paper describes the geo-spatial database developed to manage geo-spatial data necessary to describe the technological safety of the land surrounding a "Seveso" establishment. The work was part of a project having the environmental conditions of the Terni area (central Italy) as target. The contents and structure of the database can be considered of general validity, as core of a Geographic Information System aimed at managing, displaying and delivering key geographic information needed for those safety tasks descending from the Seveso regulation, that involve the land outside the perimeter of the establishment. Consequences analysis, compatibility assessment, Na-Tech risk assessment, land use planning, external emergency planning, global area risk evaluation strongly rely on geo-spatial information, and their products should be fully correlated. The increasing use of realistic simulation models and of maps as means to present results, as well as the need to effectively disseminate information to population, address towards searching approaches to make a set of reliable and up-dated geo-spatial data, specifically focused on land technological safety, widely available.
