Record Details

Radionuclide ratios of cesium and strontium in Tarapur marine environment, west coast of India

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Radionuclide ratios of cesium and strontium in Tarapur marine environment, west coast of India
 
Creator Baburajan, A
Rao, D D
Chandramouli, S
Iyer, R S
Hegde, A G
Nagarajan, P S
 
Description 455-457
Marine
environment of Tarapur located 100 km north of Bombay. on the west coast, receives low level
liquid waste from Tarapur Atomic Power Station (TAPS) and Fuel Reprocessing
Plant(FRP). Radionuclide ratios of cesium and

strontium
were obtained in source term (the quantum of radioactive liquid waste available
for discharge) and different marine samples viz, seawater, sediment, seaweed
and marine organisms. A constant ratio of 137Cs:134Cs was
observed in

seawater and
source term. But the ratio of 137Cs:90Sr had wide
variation due to selective scavenging of 137Cs by sedimentary
particles at the discharge location. Among the other matrices, sediment showed
a higher value of 137Cs:134Cs and 137Cs90Sr
reflecting the cumulative effects of releases from TAPS and FRP and higher
distribution coefficient of radiocesium from seawater to sediment. Marine algae
indicate a discrimination against sorption of 90Sr due to the
isotopic dilution by stable strontium present in seawater (8mg/l). The marine
organisms preying on sediment containing microflora and fauna exhibited

radionuclide ratios similar to
seawater as the sediment sorbed cesium is not available for assimilation due to
the mineral nature of the sediment. The matrices other than sediment indicated
the equilibrated activity ratio of radionuclides in seawater which is the
recipient medium and reflected the influence of continuous discharge. The
sedimentary radionuclide ratio is largely dependent on sorption characteristics
of radionuclides and their retention.
 
Date 2014-01-15T09:41:07Z
2014-01-15T09:41:07Z
1999-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/25711
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.28(4) [December 1999]