Regan, "Study of
natural radioactivity in riverbank soils along the Chao Phraya river basin in Thailand," Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol.
Natural radioactivity levels of geothermal waters and their influence on soil and agricultural activities.
Natural radioactivity of [sup.226]Ra, [spu.232]Th, and [sup.40]K in different types of fertilizers used in Egypt and in Japan was measured using a high purity germanium detector.
Hussein
Natural radioactivity levels in environmental samples in north western desert of Egypt.
Azarvand [7], in determinant of
natural radioactivity measurements in environmental samples of Sungun mining, Iran, showed that the amount radioactive elements, especially K40, in many parts of the region is higher than world average provided by UNICER (2000).
Preliminary reports on the determination of
natural radioactivity levels in the State of Qatar and a report on the determination of the
natural radioactivity levels in northwest of Dukhan (an area known for its oil fields) in the State of Qatar, have been earlier (Al-Sulaiti et al., 2012; 2011; 2010; Nasir et al., 2012).
The temporal trends of
natural radioactivity during the months of August and December are compared in Figure 3.
The presence of radioactive nuclides in water is due to the deposition from atmosphere, leaching from soils and rock courses formed from dissolved [sup.226]Ra and [sup.222]Rn.The activity concentration of radioactive nuclides reported from these regions are within the limit.Natural radioactivity forms a significant part of the total activity in the environment whereas anthropogenic activities have introduced significant amounts and usually their influence is limited to the near locality of their introduction.Understanding
natural radioactivity will enable us to check or limit the toxicity and hence risk to the individual and society of such exposed.
Measurement of
natural radioactivity in building materials in Qena city, Upper Egypt.
Bacteria may survive in this low-productivity zone by consuming oxygen very slowly or by relying on
natural radioactivity for energy.
PNRA is continuously performing environmental monitoring throughout the country to assess any change in
natural radioactivity level.