Simpkins A A, Hamby D M
Westinghouse Savannah River Company, Aiken, SC 29802, USA.
Health Phys. 1997 Feb;72(2):179-85. doi: 10.1097/00004032-199702000-00001.
Measured tritium oxide concentrations in air at various offsite locations are compared with concentrations predicted by three computer codes that are utilized at the Savannah River Site to estimate doses to maximally exposed offsite individuals. Annual average concentrations calculated by the computer models were compared with measured average concentrations taken from monitoring data collected over the last 10 y. The computer programs used for the comparison are AXAIRQ, MAXIGASP, and CAP88. The 10-y averaged ratios of predicted-to-measured tritium oxide air concentrations using AXAIRQ, MAXIGASP, and CAP88 are 1.89+/-0.56, 1.70+/-0.48, and 1.40+/-0.39, respectively. The difference in ratios is primarily due to different wind speed averages used within each of the models. These results show exceptional agreement, considering Gaussian plume models typically over predict annual average air concentrations by a factor of two to four.
将在不同场外地点测量的空气中氧化氚浓度与萨凡纳河工厂用于估算场外最大受照个人剂量的三种计算机代码预测的浓度进行比较。将计算机模型计算的年平均浓度与过去10年收集的监测数据中的测量平均浓度进行比较。用于比较的计算机程序是AXAIRQ、MAXIGASP和CAP88。使用AXAIRQ、MAXIGASP和CAP88预测的与测量的氧化氚空气浓度的10年平均比率分别为1.89±0.56、1.70±0.48和1.40±0.39。比率差异主要是由于每个模型中使用的平均风速不同。考虑到高斯烟羽模型通常会将年平均空气浓度高估两到四倍，这些结果显示出非常好的一致性。
