This leaflet is the result of cooperation between the Swedish Rescue Services Agency, the Epidemiological Centre of the National Board of Health and Welfare (EpC), the National Board of Housing, Building and Planning, the Swedish Association of Local Authorities and Regions, and the Swedish Consumer Agency. The duties of the Swedish Rescue Services Agency and a number of other agencies were taken over at the beginning of 2009 by a new consolidated agency, the Swedish Civil Contingencies Agency.