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Radioactivity levels in marine organisms due to spot discharges

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Title Radioactivity levels in marine organisms due to spot discharges
 
Creator Sarma, T. P.
Sastry, V. N.
Krishnamoorthy, T. M.
D'Souza, R. S.
 
Description 155-160
A mathematical model has been developed to evaluate radioactivity levels in marine organisms arising out of spot discharge in open sea, taking into account physical processes such as eddy diffusion and transport of the active patch by surface currents and biological processes such as uptake, accumulation and physical and biological decay. Calculations have been made to arrive at the expected activity levels in Harpodon nehereus (Bombay duck) obtained at different distances from the discharge point, using a computer programme suitable for CDC-3600. The computations indicate that for certain nuclides, especially for neutron induced products, release of 1 kCi amount of radioactivity at a time does not lead to concentration levels more than the maximum permissible concentration levels in fishes obtained beyond 1 km distance from the discharge point. The calculations show that even though higher levels of radioactivity are expected for neutron induced products compared to that of some fission nuclides such as 90Sr and 137Cs, the specific activity in the case of the former decreases very rapidly whereas the activity due to the latter is long lasting.
 
Date 2017-01-04T12:06:21Z
2017-01-04T12:06:21Z
1975-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/39692
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Source IJMS Vol.04(2) [December 1975]