The Swedish Government appointed Hansson to the Products Control Board (1976–1982; the predecessor of the National Chemicals Inspectorate), the National Board for Spent Nuclear Fuel (1981–1992) and the Natural Science Foundation (1989–1992). He continues to write on radiation exposure risk assessment.[4] He was also a member of two temporary Commissions on environmental policies appointed by the Swedish Government, expert advisor to a 1999–2000 Swedish government committee the kemikaliekommittén, and a member of the board of the MISTRA project New Strategy for the risk management of chemical substances. Hansson's contributions on theories of risk assessment have been cited as recently as 2012.[5]
Since December 2000, Hansson has been a member of forskningsberedningen, the Swedish government's advisory board of researchers.
Since September 1999 he has been the Editor-in-Chief of Theoria, the only international, peer-reviewed, philosophy journal published in Sweden. He was the founding chairperson of the Swedish Skeptics (Vetenskap och Folkbildning),[10] and is still a board member and editor of the organisation's journal Folkvett.
^Hansson, Sven Ove (1 June 2005). "The racial teachings of Rudolf Steiner". Skeptic Report. According to the original publication of the article in Swedish (Folkvett nr 3/2004.), it was written in response to criticism of the Swedish branch of the CSICOP for its publication the previous year of a critical anthology on anthroposophy as being repeatedly unreliable.