Enriched isotope tracing to reveal the fractionation and lability of legacy and newly introduced cadmium under different amendments
文献类型：期刊论文
| 作者 | Dong, Qiang; Liu, Yanwei; Liu, Guangliang; Guo, Yingying; Yang, Qingqing; Shi, Jianbo; Hu, Ligang; Liang, Yong; Yin, Yongguang; Cai, Yong |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2021-02-05 |
| 卷号 | 403页码:- |
| ISSN号 | 0304-3894 |
| 关键词 | Cadmium Enriched stable isotope Isotope dilution Fractionation Lability |
| 英文摘要 | The newly introduced Cd (CdN) has different environmental fates than legacy Cd (CdL) and how to distinguish them in soil under different amendments is crucial for understanding natural aging and engineered remediation of Cd pollution in soil. In this study, enriched stable isotope tracer (Cd-112) was introduced to distinguish the fate of CdN and CdL in paddy soil under pH adjustment and quicklime, slaked lime, and biochar amendments. The behaviors of CdN and CdL were studied during 56 days of flooding incubation through overlying water analysis, sequential extraction fractionation and lability (exchangeable pool probed by Cd-110 isotopic spike) assessment. The results showed that soil pH is the main driving factor controlling the partition of both CdN and CdL in overlying water. During the incubation, CdN transformed quickly from soluble fraction to residual fraction under all treatments. In addition, at the end of the incubation, CdN concentrations in residual fraction were much higher than that of CdL, suggesting a more thorough aging of CdN than CdL. The labile CdN (ECdN) under pH adjustment and biochar amendment decreased during incubation and ECdN% was essentially the same with that of ECdL% after 28 days, indicating the aging equilibrium of exchangeable pool of CdN. |
| WOS研究方向 | Engineering, Environmental ; Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45722]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Lab Environm Nanotechnol & Hlth Effect, Beijing 100085, Peoples R China 2.Chinese Acad Sci, Res Ctr Eco Environm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Florida Int Univ, Dept Chem & Biochem, Miami, FL 33199 USA 5.Jianghan Univ, Inst Environm & Hlth, Wuhan 430056, Peoples R China 6.UCAS, Hangzhou Inst Adv Study, Inst Environm & Hlth, Hangzhou 310000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Qiang,Liu, Yanwei,Liu, Guangliang,et al. Enriched isotope tracing to reveal the fractionation and lability of legacy and newly introduced cadmium under different amendments[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,403:-. |
| APA | Dong, Qiang.,Liu, Yanwei.,Liu, Guangliang.,Guo, Yingying.,Yang, Qingqing.,...&Jiang, Guibin.(2021).Enriched isotope tracing to reveal the fractionation and lability of legacy and newly introduced cadmium under different amendments.JOURNAL OF HAZARDOUS MATERIALS,403,-. |
| MLA | Dong, Qiang,et al."Enriched isotope tracing to reveal the fractionation and lability of legacy and newly introduced cadmium under different amendments".JOURNAL OF HAZARDOUS MATERIALS 403(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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