Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.apgeochem.2018.08.020 |
Four-dimensional isotopic approach to identify perchlorate sources in groundwater: Application to the Rialto-Colton and Chino subbasins, southern California (USA) | |
Hatzinger, Paul B.1; Bohlke, J. K.2; Sturchio, Neil C.3; Izbicki, John4; Teague, Nicholas4 | |
通讯作者 | Hatzinger, Paul B. |
来源期刊 | APPLIED GEOCHEMISTRY
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ISSN | 0883-2927 |
出版年 | 2018 |
卷号 | 97页码:213-225 |
英文摘要 | Perchlorate (ClO4-) in groundwater can be from synthetic or natural sources. Natural sources include ClO4 associated with historical application of imported natural nitrate fertilizer from the Atacama Desert of Chile, and indigenous ClO4- that accumulates locally in arid regions from atmospheric deposition. The Rialto-Colton groundwater subbasin, 80 km east of Los Angeles, California, includes two mapped ClO4-plumes from known military/industrial sources. Larger areas downgradient from those plumes, and in the Chino subbasin to the southwest, also contain ClO4-. Perchlorate from wells was analyzed for chlorine and oxygen stable isotope ratios (delta Cl-37, delta O-18,Delta O-17) and radioactive chlorine-36 (Cl-36) isotopic abundance, along with other geochemical, isotopic, and hydrogeologic data. Isotopic data show that synthetic ClO4-was the dominant source within the mapped plumes. Downgradient from the mapped plumes, and in the Chino subbasin, the dominant source of ClO4- was related to past agricultural use of Chilean (Atacama) nitrate fertilizer. The Cl-36 and delta O-18 data indicate that wells having predominantly synthetic or Atacama ClO4- also contained small fractions of indigenous ClO4-. Little or no differences were observed in isotopic composition or ClO4- source with depth in depthdependent data from selected wells. Indigenous ClO4- was most evident in upgradient wells having ClO4 concentrations< 1 mu g/L, consistent with its occurrence as a background constituent throughout the region. Stable isotope ratios of chlorine and oxygen and Cl-36 isotopic abundance data provided relatively unambiguous discrimination of synthetic and Atacama sources in most wells having ClO4- concentrations greater than 1 mu g/L. |
英文关键词 | Perchlorate Isotope Oxygen Chlorine USA Groundwater Chlorine-36 Forensic Groundwater Fertilizer Atacama Chile Rialto |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000446455900021 |
WOS关键词 | NATURAL PERCHLORATE ; HIGH-PLAINS ; NITRATE ; OXYGEN ; ORIGIN ; TEXAS |
WOS类目 | Geochemistry & Geophysics |
WOS研究方向 | Geochemistry & Geophysics |
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/2XILL650/207637 |
作者单位 | 1.Aptim Fed Serv, Lawrenceville, NJ 08648 USA; 2.US Geol Survey, 959 Natl Ctr, Reston, VA 22092 USA; 3.Univ Delaware, Newark, DE USA; 4.US Geol Survey, San Diego, CA USA |
推荐引用方式 GB/T 7714 | Hatzinger, Paul B.,Bohlke, J. K.,Sturchio, Neil C.,et al. Four-dimensional isotopic approach to identify perchlorate sources in groundwater: Application to the Rialto-Colton and Chino subbasins, southern California (USA)[J]. United States Geological Survey,2018,97:213-225. |
APA | Hatzinger, Paul B.,Bohlke, J. K.,Sturchio, Neil C.,Izbicki, John,&Teague, Nicholas.(2018).Four-dimensional isotopic approach to identify perchlorate sources in groundwater: Application to the Rialto-Colton and Chino subbasins, southern California (USA).APPLIED GEOCHEMISTRY,97,213-225. |
MLA | Hatzinger, Paul B.,et al."Four-dimensional isotopic approach to identify perchlorate sources in groundwater: Application to the Rialto-Colton and Chino subbasins, southern California (USA)".APPLIED GEOCHEMISTRY 97(2018):213-225. |
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