High Levels of Natural Radiation 1996

I. Dose Estimation . High background radiation area - an important source of exploring the health effects of low dose ionizing radiation (L.-X. Wei). Exposures to natural radiation worldwide (B.G. Bennett). Cosmic ray contribution in the measurement of environmental gamma ray dose (K. Nagaoka, K. Honda, K. Miyano). Survey of natural radiation background and assessment of its population dose in China (K.-D. Wei et al ). Investigation of outdoor gamma-radiation level in Suzhou urban and rural areas (Y. Tu, D.-Z. Jiang). Environment ionizing radiation level and dose to population in Qinghai province (Z.-Y. Cao et al ). Methodology of external radiation dosimetry and measurement assurance applied in epidemiology in high background radiation area in Yangjiang, China (K.-B. Li, S.-A. Zhao). II. Radioactive Aerosols . World high level natural radiation and/or radon-prone areas with special regard to dwellings (M. Sohrabi). Origin of a new high level natural radiation area in the hot spring region on Mahalat, central Iran (M. Sohrabi et al. ). Level of 222 Rn and its daughters in the environment of Xinglong district in Hainan Province (Q.-X. Zeng et al. ). Radon concentration and radiation dose to population exposed in the high elevation areas of Sichuan (Y.G. Liu, Y.-H. Mao). 222 Rn concentration in different types of cave dwellings in Gansu Province (P.-Y. Gao et al. ). Concentration of radon and its daughters in environment and internal doses to population in Qinghai Province (J.-Q. Ni et al. ). The size distribution of atmospheric radioactive aerosols and its measurement (Y.-H. Jin et al. ). A new sub-nationwide survey of outdoor and indoor 222 Rn concentrations in China (Y.-H. Jin et al. ). III. Natural Radionuclides . Indian research on high levels of natural radiation: pertinent observations for further studies (P.C. Kesavan). Brazilian research in areas of high natural radioactivity (A.R. Oliveira et al. ). Natural radioactivity of soil samples in some high level natural radiation areas of Iran (M. Sohrabi et al ). Investigations about the radioactive disequilibrium among the main radionuclides of the thorium decay chain in foodstuffs (D.C. Lauria et al. ). Transfer of 226 Ra, 228 Ra, 210 Po in the aquatic organism and the foodstuff chain (X.-T. Yang et al). Intake of food and internal doses by ingestion in two high radiation areas in China (H.-D. Zhu). Biosphere effects of natural radionuclides released from coal-fried power plants (Y.-H. Mao, Y.-G. Liu). IV. Fallout from Nuclear Test . Overview of scope-RADTREST project (R. Kirchmann et al). Assessment of risks from combined exposures to radiation and other agents at environmental levels (T. Jung, W. Burkart). Exposure dose from natural radiation and other sources to the population in China (C.-S. Zhu, Y. Liu, L.-A. Zhang). Transfer of nuclear fission products to crops and soils and countermeasures (S.-M. Xu et al).