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2015 ; 56
(1
): 22-9
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Assessment of radionuclides in the soil of residential areas of the Chittagong
metropolitan city, Bangladesh and evaluation of associated radiological risk
#MMPMID25237039
Rashed-Nizam QM
; Rahman MM
; Kamal M
; Chowdhury MI
J Radiat Res
2015[Jan]; 56
(1
): 22-9
PMID25237039
show ga
Soil samples from the three residential hubs of Chittagong city, Bangladesh were
analyzed using gamma spectrometry to estimate radiation hazard due to natural
radioactive sources and anthropogenic nuclide (137)Cs. The activity concentration
of (226)Ra was found to be in the range 11-25 Bq.kg(-1), (232)Th in the range
38-59 Bq.kg(-1) and (40)K in the range 246-414 Bq.kg(-1). These results were used
to calculate the radiological hazard parameters including Excess of Lifetime
Cancer Risk (ELCR). The estimated outdoor gamma exposure rates were 40.6-63.8
nGy.h(-1). The radiation hazard index (radium equivalent activity) ranged from
90-140 Bq.kg(-1). The average value of the ELCR was found to be 0.21 × 10(-3),
which is lower than the world average. Sporadic fallout of (137)Cs was observed
with an average value of 2.0 Bq.kg(-1).
|Bangladesh/epidemiology
[MESH]
|Cities/*statistics & numerical data
[MESH]
|Environmental Exposure/*statistics & numerical data
[MESH]
|Environmental Monitoring/*statistics & numerical data
[MESH]