210Po and 210Pb activity concentrations in Greenlandic seabirds and dose assessment

2020 ◽  
Vol 712 ◽  
pp. 136548 ◽  
Author(s):  
Violeta Hansen ◽  
Anders Mosbech ◽  
Jens Søgaard-Hansen ◽  
Frank Farsø Rigét ◽  
Flemming Ravn Merkel ◽  
...  
Chemosphere ◽  
2012 ◽  
Vol 87 (11) ◽  
pp. 1295-1300 ◽  
Author(s):  
Martina Rožmarić ◽  
Matea Rogić ◽  
Ljudmila Benedik ◽  
Marko Štrok ◽  
Delko Barišić ◽  
...  

Author(s):  
Anas M Ababneh ◽  
Qutad M Samarah

Abstract It is inevitable that we are exposed to radiation daily from various sources and products that we consume on daily basis. The use of toothpaste for oral hygiene is one of the most common daily practices by humans and yet very little data are available regarding its radiation content. In this work, we investigated the concentrations of gamma emitting radionuclides in toothpaste samples consumed in Jordan. 40K and 226Ra were detected in almost one-third of the samples, whereas 228Ra was detected in nearly half of them. The corresponding activity concentrations in the detected samples were in the ranges of 68.7–154.2, 4.6–14.1 and 1.3–10.0 Bq/kg, respectively. Dose assessment of accidental ingestion of toothpaste for children and adults was made, and its contribution to the annual effective dose was found to be very minimal with maximum doses of ~2.9 and 1.3 μSv for children and adults, respectively.


2019 ◽  
Vol 184 (3-4) ◽  
pp. 409-412
Author(s):  
N Veerasamy ◽  
S K Sahoo ◽  
K Inoue ◽  
M Fukushi ◽  
H Tsuruoka ◽  
...  

Abstract A preliminary study was carried out to determine the radioactivity concentration of 232Th, 226Ra and 40K in beach placer sands from 13 locations along the coast line of Tamil Nadu state, India. The ambient dose rates varied from 9 to 467 nGy h−1. The activity concentrations of radionuclide 232Th, 226Ra and 40K ranged from 5.2 to 683 Bq kg−1, 13 to 198 Bq kg−1 and 107 to 421 Bq kg−1, respectively. The annual effective dose rate ranges from 27 to 620 μSv y−1 and was higher at seven beaches in comparison to the UNSCEAR annual worldwide average value.


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