|
Annual effective dose and concentration levels of gross α and β in Turkish market tea
|
F.K. Görür   , R. Keser , N. Akçay , N. As , S. Dizman |
| , filizkorkmaz@yahoo.com |
|
|
Abstract: (10881 Views) |
|
Background: Tea is one of the most popular
beverages all over the world which is prepared from
the leaves of a shrub camellia sinensis. Eastern Black
Sea Region of Turkey which account for around 100%
of all tea production in Turkey was among the areas
contaminated by Chernobyl accident. Materials and
Methods: A comprehensive study was planned and
carried out to determine the level of gross α and β
radioactivity and annual effective dose equivalent in
different Turkish market tea using LSC. Results: The
average measurements for digestion and infusion are
5.0 mBql-1 and 1.8 mBql-1 for gross α, 80.7 mBql-1
and 9.0 mBql-1 for gross β in tea samples. Contributions
of the infusion tea samples to total annual
effective dose equivalent from 238U, 234U, 230Th, 226Ra,
210Po, 232Th, 238Th, 210Pb and 228Ra are 0.103, 0.112,
0.480, 0.640, 2.742, 0.525, 0.164, 7.740 and
7.740 μSvy-1 for adults. Conclusion: The obtained
results showed that natural activity concentrations of
α- and β-emitting radionuclides and annual effective
dose equivalent in tea samples did not exceed WHO
recommended levels. Iran. J. Radiat. Res., 2012 10(2):
67‐72
|
|
| Keywords: Gross α, gross β, activity, tea, effective dose equivalent |
|
|
Full-Text [PDF 319 kb]
(4052 Downloads)
|
|
Type of Study: Original Research |
Subject:
Radiation Biology
|
|
|
|
|
|
