Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.2134/jeq2003.0988 |
Simplified method for detecting tritium contamination in plants and soil | |
Andraski, BJ; Sandstrom, MW; Michel, RL; Radyk, JC; Stonestrom, DA; Johnson, MJ; Mayers, CJ | |
通讯作者 | Andraski, BJ |
来源期刊 | JOURNAL OF ENVIRONMENTAL QUALITY |
ISSN | 0047-2425 |
出版年 | 2003 |
卷号 | 32期号:3页码:988-995 |
英文摘要 | Cost-effective methods are needed to identify the presence and distribution of tritium near radioactive waste disposal and other contaminated sites. The objectives of this study were to (i) develop a simplified sample preparation method for determining tritium contamination in plants and (ii) determine if plant data could be used as an indicator of soil contamination. The method entailed collection and solar distillation of plant water from foliage, followed by filtration and adsorption of scintillation-interfering constituents on a graphite-based solid phase extraction (SPE) column. The method was evaluated using samples of creosote bush [Larrea tridentata (Sesse & Moc. ex DC.) Coville], an evergreen shrub, near a radioactive disposal area in the Mojave Desert. Laboratory tests showed that a 2-g SPE column was necessary and sufficient for accurate determination of known tritium concentrations in plant water. Comparisons of tritium concentrations in plant water determined with the solar distillation-SPE method and the standard (and more laborious) toluene-extraction method showed no significant difference between methods. Tritium concentrations in plant water and in water vapor of root-zone soil also showed no significant difference between methods. Thus, the solar distillation-SPE method provides a simple and cost-effective way to identify plant and soil contamination. The method is of sufficient accuracy to facilitate collection of plume-scale data and optimize placement of more sophisticated (and costly) monitoring equipment at contaminated sites. Although work to date has focused on one desert plant, the approach may be transferable to other species and environments after site-specific experiments. |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000182997100025 |
WOS关键词 | WATER-MOVEMENT ; DESERT ; SITE |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | United States Geological Survey |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/145104 |
作者单位 | (1)US Geol Survey, Carson City, NV 89706 USA;(2)US Geol Survey, Denver Fed Ctr, Lakewood, CO 80225 USA;(3)US Geol Survey, Menlo Pk, CA 94025 USA |
推荐引用方式 GB/T 7714 | Andraski, BJ,Sandstrom, MW,Michel, RL,et al. Simplified method for detecting tritium contamination in plants and soil[J]. United States Geological Survey,2003,32(3):988-995. |
APA | Andraski, BJ.,Sandstrom, MW.,Michel, RL.,Radyk, JC.,Stonestrom, DA.,...&Mayers, CJ.(2003).Simplified method for detecting tritium contamination in plants and soil.JOURNAL OF ENVIRONMENTAL QUALITY,32(3),988-995. |
MLA | Andraski, BJ,et al."Simplified method for detecting tritium contamination in plants and soil".JOURNAL OF ENVIRONMENTAL QUALITY 32.3(2003):988-995. |
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