Transfer coefficient of super(137)Cs from feed to cow milk in tropical region Kaiga, India

In the transport model for the prediction of the concentration of super(137)Cs in milk, the transfer coefficient from feed to milk, Fm, is an important parameter. Site-specific transfer coefficient from feed to cow's milk, for super(137)Cs in the Kaiga environment, a nuclear power station site in India, determined over a period of 10 y is presented in this paper. The value is determined from super(137)Cs concentration in milk and grass samples of the Kaiga region and the result ranged from 6.43E-03 to 1.09E-02 d l super(-1) with a geometric mean value of 8.0E-03 d l super(-1). The result is compared with that for 40K, determined concurrently at the same region and ranged from 3.06E-03 to 3.48E-03 d l super(-1) with a geometric mean value of 3.26E-03 d l super(-1). This parameter is quite useful in decision-making for implementing countermeasures during a large area contamination with super(137)Cs in tropical areas like Kaiga.