In Situ Insight into the Availability and Desorption Kinetics of Per- and Polyfluoroalkyl Substances in Soils with Diffusive Gradients in Thin Films
文献类型：期刊论文
| 作者 | Huang, Yue-Rui2; Liu, Si-Si2; Zi, Jin-Xin2; Cheng, Sheng-Ming2; Li, Jun1; Ying, Guang-Guo2; Chen, Chang-Er2 |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2023 |
| 卷号 | 57期号:20页码:7809-7817 |
| 关键词 | PERFLUOROALKYL SURFACTANTS DGT MEASUREMENTS TRACE-METALS SORPTION ACIDS CD GROUNDWATER ADSORPTION ISOTHERMS RETENTION |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.2c09348 |
| 英文摘要 | The physicochemical exchange dynamics between the solid and solution phases of per- and polyfluoroalkyl substances (PFAS) in soils needs to be better understood. This study employed an in situ tool, diffusive gradients in thin films (DGT), to understand the distribution and exchange kinetics of five typical PFAS in four soils. Results show a nonlinear relationship between the PFAS masses in DGT and time, implying that PFAS were partially supplied by the solid phase in all of the soils. A dynamic model DGT-induced fluxes in soils/sediments (DIFS) was used to interpret the results and derive the distribution coefficients for the labile fraction (Kdl), response time (tc), and adsorption/desorption rates (k1 and k-1). The larger labile pool size (indicated by Kdl) for the longer chain PFAS implies their higher potential availability. The shorter chain PFAS tend to have a larger tc and relatively smaller k-1, implying that the release of these PFAS in soils might be kinetically limited but not for more hydrophobic compounds, such as perfluorooctanesulfonic acid (PFOS), although soil properties might play an important role. Kdl ultimately controls the PFAS availability in soils, while the PFAS release from soils might be kinetically constrained (which may also hold for biota uptake), particularly for more hydrophilic PFAS. ? 2023 American Chemical Society. |
| WOS研究方向 | Engineering, Environmental ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000986570700001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/80222]  |
| 专题 | 有机地球化学国家重点实验室 |
| 作者单位 | 1.State Key Laboratory of Organic Geochemistry, Guangdong Province Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangdong, Guangzhou; 510640, China 2.Environmental Research Institute/School of Environment, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangdong, Guangzhou; 510006, China |
| 推荐引用方式 GB/T 7714 | Huang, Yue-Rui,Liu, Si-Si,Zi, Jin-Xin,et al. In Situ Insight into the Availability and Desorption Kinetics of Per- and Polyfluoroalkyl Substances in Soils with Diffusive Gradients in Thin Films[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2023,57(20):7809-7817. |
| APA | Huang, Yue-Rui.,Liu, Si-Si.,Zi, Jin-Xin.,Cheng, Sheng-Ming.,Li, Jun.,...&Chen, Chang-Er.(2023).In Situ Insight into the Availability and Desorption Kinetics of Per- and Polyfluoroalkyl Substances in Soils with Diffusive Gradients in Thin Films.ENVIRONMENTAL SCIENCE & TECHNOLOGY,57(20),7809-7817. |
| MLA | Huang, Yue-Rui,et al."In Situ Insight into the Availability and Desorption Kinetics of Per- and Polyfluoroalkyl Substances in Soils with Diffusive Gradients in Thin Films".ENVIRONMENTAL SCIENCE & TECHNOLOGY 57.20(2023):7809-7817. |
入库方式： OAI收割
来源：广州地球化学研究所
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