Institute of Radiation Safety (BELRAD), 2-nd Marusinsky St. 27, Minsk 220053, Belarus.
Ann N Y Acad Sci. 2009 Nov;1181:289-302. doi: 10.1111/j.1749-6632.2009.04837.x.
In many European countries levels of I-131, Cs-134/137, Sr-90, and other radionuclides in milk, dairy products, vegetables, grains, meat, and fish increased drastically (sometimes as much as 1,000-fold) immediately after the catastrophe. Up until 1991 the United States imported food products with measurable amounts of Chernobyl radioactive contamination, mostly from Turkey, Italy, Austria, West Germany, Greece, Yugoslavia, Hungary, Sweden, and Denmark. These products included juices, cheeses, pasta, mushrooms, hazelnuts, sage, figs, tea, thyme, juniper, caraway seeds, and apricots. In Gomel, Mogilev, and Brest provinces in Belarus 7-8% of milk and 13-16% of other food products from small farms exceeded permissible levels of Cs-137, even as recently as 2005-2007. As of 2000, up to 90% of the wild berries and mushrooms exceeded permissible levels of Cs-137 in Rovno and Zhytomir provinces, Ukraine. Owing to weight and metabolic differences, a child's radiation exposure is 3-5 times higher than that of an adult on the same diet. From 1995 to 2007, up to 90% of the children from heavily contaminated territories of Belarus had levels of Cs-137 accumulation higher than 15-20 Bq/kg, with maximum levels of up to 7,300 Bq/kg in Narovlya District, Gomel Province. Average levels of incorporated Cs-137 and Sr-90 in the heavily contaminated territories of Belarus, Ukraine, and European Russia did not decline, but rather increased from 1991 to 2005. Given that more than 90% of the current radiation fallout is due to Cs-137, with a half-life of about 30 years, we know that the contaminated areas will be dangerously radioactive for roughly the next three centuries.
在许多欧洲国家,灾难发生后,牛奶、奶制品、蔬菜、谷物、肉类和鱼类中的碘-131、铯-134/137、锶-90 等放射性核素的水平急剧上升(有时高达 1000 倍)。直到 1991 年,美国进口了含有可测量切尔诺贝利放射性污染的食品,主要来自土耳其、意大利、奥地利、西德、希腊、南斯拉夫、匈牙利、瑞典和丹麦。这些产品包括果汁、奶酪、意大利面、蘑菇、榛子、鼠尾草、无花果、茶、百里香、杜松、香菜籽和杏。在白俄罗斯的戈梅利、莫吉廖夫和布雷斯特省,即使在 2005-2007 年,小农场的牛奶中有 7-8%,其他食品中有 13-16%超过了铯-137 的允许水平。截至 2000 年,乌克兰罗夫诺和日托米尔省的野生浆果和蘑菇中,有多达 90%的放射性核素铯-137超过了允许水平。由于体重和代谢的差异,儿童的辐射暴露量比同一饮食的成年人高 3-5 倍。从 1995 年到 2007 年,白俄罗斯污染严重地区的儿童中,有高达 90%的儿童体内的铯-137积累水平超过 15-20 Bq/kg,在戈梅利省的纳罗夫利亚区,最高水平达到 7300 Bq/kg。白俄罗斯、乌克兰和俄罗斯欧洲部分受污染地区的铯-137 和锶-90 的平均摄入量没有下降,而是从 1991 年到 2005 年有所增加。鉴于目前超过 90%的辐射沉降物是由于半衰期约为 30 年的铯-137 造成的,我们知道在接下来的大约三个世纪里,受污染地区将具有危险的放射性。