Fate of 2,4,6-Tribromophenol in Soil Under Different Redox Conditions

被引：2

作者：

Jia, Xiong ^{[1
]}

Wang, Wenji ^{[1
]}

Yao, Yao ^{[1
]}

He, Yujie ^{[1
,2
]}

Corvini, Philippe F-X ^{[1
,3
]}

Ji, Rong ^{[1
,2
]}

机构：

[1] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Peoples R China

[2] Nanjing Univ, Quanzhou Inst Environm Protect Ind, Beifeng Rd, Quanzhou 362000, Peoples R China

[3] Univ Appl Sci & Arts Northwestern Switzerland, Sch Life Sci, Inst Ecopreneurship, Hofackerstr 30, CH-4132 Muttenz, Switzerland

来源：

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2020年 / 104卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Soil redox; Degradation; Mineralization; Non-extractable residues (NERs); Bound residues (BRs); BROMINATED FLAME RETARDANTS; BOUND-RESIDUE FORMATION; BIODEGRADATION KINETICS; MICROBIAL-DEGRADATION; TETRABROMOBISPHENOL; TRIBROMOPHENOL; NONYLPHENOL; FUNGI;

D O I：

10.1007/s00128-020-02835-8

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Fate of 2,4,6-tribromophenol (TBP) in environmental matrices is obscure. We used C-14-tracer to investigated mineralization, transformation, and non-extractable residue (NER)-formation of TBP in a soil under continuously oxic, continuously anoxic, and anoxic-oxic alteration conditions. In all cases, TBP rapidly dissipated, mineralized to CO2, and formed NERs in the soil. Considerable amounts of transformation products (2-12%) were detected during the incubation. Marked mineralization (13-26%) indicated that soil microorganisms used TBP as their energy source. About 62-70% of the initial radioactivity was transformed into NERs, being mainly attributed to binding to humic and fulvic acid fractions. TBP transformation was significantly faster under oxic conditions than under anoxic conditions, and was boosted when the soil redox changed from anoxic to oxic state. The results provide new insights into fate of TBP in soil and suggest the importance to evaluate the stability of NERs for risk assessment of TBP in soil.

引用

页码：707 / 713

页数：7

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