Transport of 131I through the grass-cow-milk pathway at a northeast US dairy following the chernobyl accident |
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| Institution: | 1. Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA;2. Biosciences and Biotechnology Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA;3. Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA;4. Forensic Science Center, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA;5. Global Security Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA;6. War Related Illness and Injury Study Center, Veterans Affairs, Palo Alto, CA 94304, USA |
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| Abstract: | Following the Chernobyl accident, samples of pasture grass and fresh farm milk were collected in northern New Jersey. The time-integrated activities of 131I were used to calculate a milk transfer coefficient of 0·001 d liter?1. This value is at the lower range of those previously reported. No significant difference in the value of the transfer coefficient was seen when calculated based on the integrated 131I in the total grass as compared to only the upper portion of the grass. Therefore, for this event, the height of the vegetation grazed by the cows would not have influenced the concentration of 131I in fresh milk. |
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