Joshi R M, James J P, Dileep B N, Mulla R M, Reji T K, Ravi P M, Hegde A G, Sarkar P K
Environmental Survey Laboratory, Kaiga Generating Station, (Health Physics Division, BARC), Kaiga, Uttar Kannada District, Karwar, Karnataka 581400, India.
Radiat Prot Dosimetry. 2012 Apr;149(3):333-9. doi: 10.1093/rpd/ncr249. Epub 2011 Jun 18.
In the transport model for the prediction of the concentration of (137)Cs in milk, the transfer coefficient from feed to milk, F(m), is an important parameter. Site-specific transfer coefficient from feed to cow's milk, for (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 (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(-1) with a geometric mean value of 8.0E-03 d l(-1). The result is compared with that for (40)K, determined concurrently at the same region and ranged from 3.06E-03 to 3.48E-03 d l(-1) with a geometric mean value of 3.26E-03 d l(-1). This parameter is quite useful in decision-making for implementing countermeasures during a large area contamination with (137)Cs in tropical areas like Kaiga.
在用于预测牛奶中(137)Cs浓度的迁移模型中，从饲料到牛奶的转移系数F(m)是一个重要参数。本文给出了印度核电站所在地卡伊加环境中(137)Cs从饲料到牛奶的特定地点转移系数，该系数是在10年期间测定的。该值由卡伊加地区牛奶和草样中的(137)Cs浓度确定，结果范围为6.43E - 03至1.09E - 02 d l(-1)，几何平均值为8.0E - 03 d l(-1)。将该结果与在同一地区同时测定的(40)K的结果进行比较，(40)K的结果范围为3.06E - 03至3.48E - 03 d l(-1)，几何平均值为3.26E - 03 d l(-1)。在像卡伊加这样的热带地区发生大面积(137)Cs污染时，该参数对于实施应对措施的决策非常有用。
