| DOI: | 10.2172/1067381
|
| 报告号: | 45246 DOE/NV/0000939-004
|
| 报告题名: | NNSS Soils Monitoring: Plutonium Valley (CAU366) FY2012 |
| 作者: | Miller, Julianne J.; Mizell, Steve A.; Nikolich, George; McCurdy, Greg; Campbell, Scott
|
| 出版年: | 2013
|
| 发表日期: | 2013-01-01
|
| 国家: | 美国
|
| 语种: | 英语
|
| 英文关键词: | The U.S. Department of Energy (DOE) National Nuclear Security Administration (NNSA)
; Nevada Site Office (NSO)
; Environmental Restoration Soils Activity has authorized the Desert Research Institute (DRI) to conduct field assessments of potential sediment t
|
| 中文主题词: | 土壤
; 降水
; 沉积物运移/泥沙流移
; 泥沙输移
; 泥沙输移/沉积物输移
; 频散
; 排水
; 径流
|
| 主题词: | SOILS
; PRECIPITATION
; SEDIMENT TRANSPORT
; DISPERSION
; DRAINAGE
; RUNOFF
|
| 英文摘要: | The U.S. Department of Energy (DOE) National Nuclear Security Administration (NNSA), Nevada Site Office (NSO), Environmental Restoration Soils Activity has authorized the Desert Research Institute (DRI) to conduct field assessments of potential sediment transport of contaminated soil from Corrective Action Unit (CAU) 366, Area 11 Plutonium Valley Dispersion Sites Contamination Area (CA) during precipitation runoff events. Field measurements at the T-4 Atmospheric Test Site (CAU 370) suggest that radionuclide-contaminated soils may have migrated along a shallow ephemeral drainage that traverses the site (NNSA/NSO, 2009). (It is not entirely clear how contaminated soils got into their present location at the T-4 Site, but flow to the channel has been redirected and the contamination does not appear to be migrating at present.) Aerial surveys in selected portions of the Nevada National Security Site (NNSS) also suggest that radionuclide-contaminated soils may be migrating along ephemeral channels in Areas 3, 8, 11, 18, and 25 (Colton, 1999). In Area 11, several low-level airborne surveys of the Plutonium Valley Dispersion Sites (CAU 366) show plumes of Americium 241 (Am-241) extending along ephemeral channels (Figure 1, marker numbers 5 and 6) below Corrective Action Site (CAS) 11-23-03 (marker number 3) and CAS 11 23-04 (marker number 4) (Colton, 1999). Plutonium Valley in Area 11 of the NNSS was selected for the study because of the aerial survey evidence suggesting downstream transport of radionuclide-contaminated soil. The aerial survey (Figure 1) shows a well defined finger of elevated radioactivity (marker number 5) extending to the southwest from the southernmost detonation site (marker number 4). This finger of contamination overlies a drainage channel mapped on the topographic base map used for presentation of the survey data suggesting surface runoff as a likely cause of the contaminated area. Additionally, instrumenting sites strongly suspected of conveying soil from areas of surface contamination offers the most efficient means to confirm that surface runoff may transport radioactive contamination as a result of ambient precipitation/runoff events. Closure plans being developed for the CAUs on the NNSS may include post-closure monitoring for possible release of radioactive contaminants. Determining the potential for transport of radionuclide-contaminated soils under ambient meteorological conditions will facilitate an appropriate closure design and post-closure monitoring program. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1067381
|
| Citation statistics: |
|
| 资源类型: | 研究报告
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/41308
|
| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
|
| File Name/ File Size |
Content Type |
Version |
Access |
License |
|
|---|
| 1067381.pdf（1917KB） | 研究报告 | -- | 开放获取 | | View
Download
|
|
| Recommended Citation: | |
Miller, Julianne J.,Mizell, Steve A.,Nikolich, George,et al. NNSS Soils Monitoring: Plutonium Valley (CAU366) FY2012. 2013-01-01.
|
|
|