Papastefanou C, Manolopoulou M, Stoulos S, Ioannidou A
Nuclear Physics Department, Aristotle University of Thessaloniki, Greece.
Health Phys. 1991 Dec;61(6):889-91. doi: 10.1097/00004032-199112000-00023.
Results are presented on monthly measurements of 137Cs content in cows' milk over a 3-y period after the Chernobyl reactor accident. It was observed that, in an annual cycle of measurements, the 137Cs concentration of milk increased between December and August, peaking in April each year, due to the dependency of the 137Cs content of cattle feed on the fallout activity of 137Cs. There was a consistent correlation between the 137Cs concentration of milk and surface air.
给出了切尔诺贝利反应堆事故后3年期间牛奶中137铯含量的月度测量结果。观察到,在年度测量周期中,由于牛饲料中137铯的含量取决于137铯的沉降活性,牛奶中137铯的浓度在12月至8月间增加,每年4月达到峰值。牛奶中137铯的浓度与地面空气之间存在一致的相关性。