2015
DOI: 10.1016/j.marpolbul.2015.05.058
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Assessments of radioactivity concentration of natural radionuclides and radiological hazard indices in sediment samples from the East coast of Tamilnadu, India with statistical approach

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Cited by 173 publications
(71 citation statements)
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“…For each geological feature, the standard deviation is less than the mean value. Therefore, the statistics indicate high degree of uniformity in the distribution of the dose rates for each geological feature (Ravisankar et al, 2015). The highest mean dose rate 289 nGy h -1 was observed with geological type younger granite, this is in agreement with similar studies conducted by M. Furukawa (1993) and Lai, Hu, Minato, Kodaira, and Tan (1999) whom reported highest dose rate over granitic regions in Japan.…”
Section: Resultssupporting
confidence: 88%
“…For each geological feature, the standard deviation is less than the mean value. Therefore, the statistics indicate high degree of uniformity in the distribution of the dose rates for each geological feature (Ravisankar et al, 2015). The highest mean dose rate 289 nGy h -1 was observed with geological type younger granite, this is in agreement with similar studies conducted by M. Furukawa (1993) and Lai, Hu, Minato, Kodaira, and Tan (1999) whom reported highest dose rate over granitic regions in Japan.…”
Section: Resultssupporting
confidence: 88%
“…The average numerical values of those parameters vary with the age of the population and the climate at the location considered. In the UNSCEAR report, the committee used 0.7 Sv/Gy for the conversion coefficient from absorbed doses in the air to the effective dose received by adults and 0.8 for the indoor occupancy factor, i.e., the fraction of time spent indoors and outdoors is 0.8 and 0.2, respectively [28]. The resulting worldwide average of the annual effective dose is 0.48 mSv, with the results for individual countries being generally within the range of 0.3-0.6 mSv.…”
Section: Annual Effective Dose Equivalent (E)mentioning
confidence: 99%
“…From the comparison Table 1, the 238 U activity was low compared with previous studies by Kannan et al [30], SureshGandhi et al [59] and Ajithra and Shanthi [3], whereas the 232 Th activity was high from the previous studies by Bukhari [15], Ramasamy et al [47], Sivakumar et al [54] and Ravisankar et al [48]. But the present study 40 K activity observed high from the previous studies by Punniyakotti and Ponnusamy [41], Raja [43], Bukhari [15], Ramasamy et al [47] and Ajithra and Shanthi [3].…”
Section: Spatial Distributionmentioning
confidence: 65%