The fifth International Symposium on the Natural Radiation Environment organized a series of tutorial sessions. One of the five major fields concerned with the radon issue. The tutorials dealt with important issues of the radon problem and covered the following aspects: Cosmic and Terrestrial Gamma Radiation Measurement, Properties and Behaviour of Radon and Thoron and Their Decay Products in the Air, Radon and Radon Daughters Metrology: Basic Aspects Long Lived Radionuclides in the Environment, in Food and in Human Beings, Design and Analysis of Radon Surveys with Epidemiological Utility.
Porstendoerfer, J;  Urban, M; Schmitz, J;  Swedjemark, G A; Baeverstam, U;  Lowder, W M; Miller, K M; Fisenne, I M
- Goettingen Univ. (Germany). Isotopenlaboratorium fuer Biologische und Medizinische Forschung
- Kernforschungszentrum Karlsruhe GmbH (Germany)
- Swedish Radiation Protection Inst., Stockholm (Sweden)