The National Cancer Institute study of projected health risks to New Mexico residents from the 1945 Trinity nuclear test provides best estimates of organ radiation absorbed doses received by representative persons according to ethnicity, age, and county. Doses to five organs/tissues at significant risk from exposure to radioactive fallout (i.e., active bone marrow, thyroid gland, lungs, stomach, and colon) from the 63 most important radionuclides in fresh fallout from external and internal irradiation were estimated. The organ doses were estimated for four resident ethnic groups in New Mexico (Whites, Hispanics, Native Americans, and African Americans) in seven age groups using: (1) assessment models described in a companion paper, (2) data on the spatial distribution and magnitude of radioactive fallout derived from historical documents, and (3) data collected on diets and lifestyles in 1945 from interviews and focus groups conducted in 2015-2017 (described in a companion paper). The organ doses were found to vary widely across the state with the highest doses directly to the northeast of the detonation site and at locations close to the center of the Trinity fallout plume. Spatial heterogeneity of fallout deposition was the largest cause of variation of doses across the state with lesser differences due to age and ethnicity, the latter because of differences in diets and lifestyles. The exposure pathways considered included both external irradiation from deposited fallout and internal irradiation via inhalation of airborne radionuclides in the debris cloud as well as resuspended ground activity and ingestion of contaminated drinking water (derived both from rivers and rainwater cisterns) and foodstuffs including milk products, beef, mutton, and pork, human-consumed plant products including leafy vegetables, fruit vegetables, fruits, and berries. Tables of best estimates of county population-weighted average organ doses by ethnicity and age are presented. A discussion of our estimates of uncertainty is also provided to illustrate a lower and upper credible range on our best estimates of doses. Our findings indicate that only small geographic areas immediately downwind to the northeast received exposures of any significance as judged by their magnitude relative to natural radiation. The findings presented are the most comprehensive and well-described estimates of doses received by populations of New Mexico from the Trinity nuclear test.

中文翻译：

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新墨西哥州居民从 1945 年三位一体核试验中收到的估计辐射剂量。

国家癌症研究所对 1945 年三一核试验对新墨西哥州居民的预计健康风险进行的研究提供了根据种族、年龄和县的代表性人员接受的器官辐射吸收剂量的最佳估计。估计了在外部和内部辐照的新鲜沉降物中的 63 种最重要的放射性核素暴露于放射性沉降物（即活跃的骨髓、甲状腺、肺、胃和结肠）的五个器官/组织的剂量。使用以下方法估计了新墨西哥州四个常住种族（白人、西班牙裔、美洲原住民和非洲裔美国人）的七个年龄组的器官剂量：（1）配套论文中描述的评估模型，（2）空间分布数据和来自历史文献的放射性沉降物的量级，(3) 1945 年从 2015-2017 年进行的访谈和焦点小组收集的有关饮食和生活方式的数据（在配套论文中描述）。发现器官剂量在全州范围内差异很大，最高剂量直接位于爆炸地点的东北部和靠近 Trinity 尘埃羽流中心的位置。沉降物的空间异质性是整个州剂量变化的最大原因，由于年龄和种族的差异较小，后者是因为饮食和生活方式的差异。所考虑的暴露途径包括来自沉积沉降物的外部辐射和通过吸入碎片云中空气中的放射性核素进行的内部辐射，以及重新悬浮的地面活动和摄入受污染的饮用水（来自河流和雨水蓄水池）和包括奶制品在内的食品，牛肉、羊肉和猪肉，人类食用的植物产品，包括叶菜、水果蔬菜、水果和浆果。提供了按种族和年龄划分的县人口加权平均器官剂量的最佳估计表。还提供了对我们对不确定性的估计的讨论，以说明我们对剂量的最佳估计的可信上下限。我们的研究结果表明，根据其相对于自然辐射的幅度判断，只有紧邻东北下风向的小地理区域受到了任何重要的辐射。所提供的调查结果是对新墨西哥州人口从三位一体核试验中受到的剂量的最全面和详细描述的估计。