Distribution of natural and anthropogenic radionuclides in soil and beach sand samples of Kalpakkam (India) using hyper pure germanium (HPGe) gamma ray spectrometry

Assessment of Natural Radioactivity and Radiation Hazard in Soil Samples of Rajbari District of Bangladesh

“…Some researchers have found higher concentrations of 238 U and 232 Th in the soils of Dhaka Export Processing (DEPZ) area, Savar of Bangladesh that might be derived from the parent materials, such as clay stones during the soil formation process [Mahfuza et al 2003]. Further studies have also been carried out to determine the background levels of radionuclides in soils and thus to calculate the absorbed dose in air [Kannan et al 2002].…”

Study of gross alpha and gross beta activity concentration in sediment and soil samples of three southern districts of Tamil Nadu

“…The gross alpha and beta radioactivity concentration of the collected soil samples 150 m away from the sea are presented in table [4][5][6]. Soil samples are analyzed for gross alpha and gross beta activity.…”

“…The results of this investigation for the soil samples along the south eastern coast of Tamil Nadu are summarized in Table [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The gross alpha and beta activity measurements for the collected samples is achieved by using alpha and beta counting system.…”

“…Naturally occurring radionuclides are the largest contributors to radiation doses received by human beings. Measurements of natural radioactivity in soil have been performed throughout the world [3][4][5][6][7][8]. The soil radioactivity is usually important to establish baseline data for futuristic purpose of radiation assessment and protection.…”

Radon exhalation rate in Chhatrapur beach sand samples of high background radiation area and estimation of its radiological implications

“…Wide ranging radiation studies have been carried out in the HBRAs in Brazil [3], in China [4], in India [5][6][7], in Iran [8] and in USA and Canada [9] and in some other countries [2] to estimate risks and effects of longterm radiation exposure. In India there exists some natural HBRA's due to monazite sand bearing placer deposits along its long coast line such as Ullal in Karnataka [10], Kalpakkam in Tamil Nadu [11] and Kerala and the southwestern coast of India [5,6]. Recently Mohanty et al (2004) [12] found higher levels of natural radionuclides ( 238 U, 232 Th & 40 K) in the newly discovered HBRA on the Chhatrapur beach placer deposit of Orissa.…”