Natural radioactivity mapping of Greek surface soils

Distribution of gamma-ray emitting radionuclides in the environment of Burullus Lake: I. Soils and vegetations

“…No significant difference was found in the calculated ratios between soil from the coast and the islands or between surface and sub-surface soils. The mean ratio of 232 Th/ 226 Ra is consistent with the reported ratios of 1.32 for China (UNSCEAR, 1993) and less consistent with 0.87 for USA (UNSCEAR, 1993) and 0.90 for Greece (Anagnostakis et al, 1996). The 226 Ra/ 40 K ratio ranged from 0.02 to 0.33 (mean ¼ 0.05).…”

Comparative assessment of natural radioactivity in fallout samples from Patras and Megalopolis, Greece

“…The corresponding specific activity values are 6.2 and 11.6 Bq kg ÿ1 , respectively. These values are in accordance with those given by Anagnostakis et al (1996) for surface soil in the greater Patras area (!15 Bq kg -1 for both 226 Ra and 232 Th).…”

Radiological risk analysis of sediment from Kutubdia island, Bangladesh due to natural and anthropogenic radionuclides

“…The decay of these radionuclides in soil produces a β-γ radiation 0ield that crosses the soil-air interfaces and produces exposure to humans (2) . Again natural environmental radioactivity and the associated external exposure due to gamma radiation depend primarily on the geological and geographical positions, and appear at different levels in the soils of each region in the world (3)(4)(5)(6) . Due to these reasons our study was carried out in this island.…”