scholarly journals Determination of concentrations and Annual Effective Dose of Pb, Cr, Rn in Groundwater Sources in Shika and Zaria City, Kaduna State, Nigeria

2018 ◽  
Vol 22 (5) ◽  
pp. 659
Author(s):  
IS Maryam ◽  
KI Omoniyi ◽  
NG Zaharaddeen
Keyword(s):  
Effective Dose ◽  
Annual Effective Dose

Determination of 90Sr in milk and milk powder in Tehran and estimation of annual effective dose

2011 ◽  
Vol 31 (3) ◽  
pp. 308-314
Author(s):  
Neda Saraygord-Afshari ◽  
Fereshteh Abbasisiar ◽  
Parviz Abdolmaleki ◽  
Mahdi Ghiassi-Nejad ◽  
Ali Attarilar
Keyword(s):  
Effective Dose ◽  
Annual Effective Dose ◽  
Milk Powder

scholarly journals Determination of radon concentration in drinking water of Taft Township and evaluation of the annual effective dose

2016 ◽  
Vol 14 (1) ◽  
pp. 39-46
Author(s):  
M. Malakootian ◽  
H. Salmani Marvast ◽  
A. Negharestani ◽  
F. Iranmanesh ◽  
◽  
...  
Keyword(s):  
Drinking Water ◽  
Effective Dose ◽  
Radon Concentration ◽  
Annual Effective Dose

scholarly journals Determination of Annual Effective Dose and Concentration Level of Gross Alpha “A” And Beta “B” In Three (3) Different Fish Feed Samples

2020 ◽  
pp. 1-4
Author(s):  
M S Anas ◽  
◽  
I Nura ◽  
K H Abubakar ◽  
E Onuh ◽  
...  
Keyword(s):  
Effective Dose ◽  
Concentration Level ◽  
Annual Effective Dose ◽  
Fish Feed ◽  
Gross Beta ◽  
Gross Alpha ◽  
Effective Doses ◽  
Gross Alpha And Beta ◽  
Feed Samples

This study was conducted for natural radioactivity of some fish feed samples in Nigeria, using gross alpha and beta method with protean instrument corporate (PIC) MPC 2000DP detector. The range of the gross alpha concentration for the sample, for the Uranium series was 0.0246 ± 0.0051 Bq/g to 0.0028 ± 0.0055 Bq/g, similarly for gross beta concentration ranges from 0.0651 ± 0.0104 Bq/g to 0.0621 ± 0.0100 Bq/g for the samples. The annual effective doses of the activities for the three sample A, B, and C which were 18.56 μSvy-1, 10.91 μSvy-1 and 17.20 μSvy-1 respectively. The results appeared to be below the standard annual effective dose of 70 μSvy-1 for humans as recommended by (UNSCEAR, 1977 and 1982). This research shows that consumers of fish have no risk of radioactivity ingestion in to the food chain, even though no amount of radiation is assumed to be totally safe because radiation is known to trigger or induce cancer

The Measurements of Natural Radioactivity, (Radon and Gamma concentrations), around the old fertilizer factory in Basrah/Iraq

2015 ◽  
Vol 7 (1) ◽  
pp. 1324-1335
Author(s):  
Jabbar H. Jebur
Keyword(s):  
Effective Dose ◽  
Radon Concentration ◽  
Gamma Ray ◽  
Annual Effective Dose ◽  
Track Detector ◽  
Exhalation Rate ◽  
Hazard Indices ◽  
Radium Equivalent ◽  
Passive Technique ◽  
Radium Activity

Radon concentration, exhalation rate, annual effective dose, radium activity, thorium, uranium potassium and radium equivalent have been measured in the present investigation for soil in the area around the old fertilizer factory in southern of Basrah Governorate. The measurements based on CR39 track detector for passive method, RAD7 for active method and NaI(Tl) for gamma concentration measurements. Average values for radon concentration in soil were 112.04±10.76 Bq/m3 using passive technique and 104.56±6.05 Bq/m3 using RAD7. From the result of the passive technique, area and mass exhalation rates and the annual effective dose were calculated. Gamma ray spectroscopy for the soil samples were performed and found that the average concentrations of 226Ra, 232Th and 40K were 50.89 Bq/kg, 21.74 Bq/kg and 640.4 Bq/kg respectively. Gamma ray hazard indices were calculated and found they are within the world average.

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