Microscale Investigation into Selenium Distribution and Speciation in Se-Rich Soils from Enshi, China |
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In this study, we investigated the distribution and chemical speciation of Se in Se-rich soil by using micro-focused X-ray absorption near-edge structure (mu-XANES) spectroscopy coupling with X-ray fluorescence (mu-XRF) mapping. The microscale distribution showed that Se is heterogeneously distributed in the soil from seleniferous areas in Enshi, China. Se K-edge mu-XANES analysis suggested that Se is mainly present as Se(IV), organic Se(-II) or Se(0) species in Se-rich agricultural soil. The findings from this study would help improve the understanding of the fate, mobility, bioavailability, and biogeochemical cycling of Se in the seleniferous soil environment.
Publication name |
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY DOI: 10.1007/s00128-020-03090-7 Early access iconEarly Access: JAN 2021 |
Author(s) |
Qin, Hai-Bo; Zhu, Jian-Ming; Tan, Decan; Xu, Wen-Po; Liang, Dong-Xu; Takahashi, Yoshio |
Corresponding author(s) |
QIN Haibo qinhaibo@vip.gyig.ac.cn -Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China. -Univ Tokyo, Grad Sch Sci, Dept Earth & Planetary Sci, Bunkyo Ku, Hongo 7-3-1, Tokyo 1130033, Japan. | View here for the details
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