Release of tetrabromobisphenol A (TBBPA)-derived non-extractable residues in oxic soil and the effects of the TBBPA-degrading bacterium Ochrobactrum sp. strain T

被引：15

作者：

Wang, Songfeng ^{[1
,2
,3
]}

Ling, Xiaohan ^{[1
]}

Wu, Xuan ^{[1
]}

Wang, Lianhong ^{[1
]}

Li, Guiying ^{[4
]}

Corvini, Philippe Francois-Xavier ^{[1
,5
]}

Sun, Feifei ^{[1
]}

Ji, Rong ^{[1
]}

机构：

[1] Nanjing Univ, State Key Lab Pollut Control & Resource Reuse, Sch Environm, Xianlin Ave 163, Nanjing 210023, Jiangsu, Peoples R China

[2] Inst Bot, Jiangsu Key Lab Res & Utilizat Plant Resources, Qianhuhoucun 1 Zhongshanmen Wai, Nanjing 210014, Jiangsu, Peoples R China

[3] Chinese Acad Sci, Qianhuhoucun 1 Zhongshanmen Wai, Nanjing 210014, Jiangsu, Peoples R China

[4] Guangdong Univ Technol, Guangzhou Key Lab Environm Catalysis & Pollut Con, Guangdong Key Lab Environm Catalysis & Hlth Risk, Sch Environm Sci & Engn,Inst Environm Hlth & Poll, Guangzhou 510006, Guangdong, Peoples R China

[5] Univ Appl Sci & Arts Northwestern Switzerland, Sch Life Sci, Inst Ecopreneurship, Grundenstr 40, CH-4132 Muttenz, Switzerland

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2019年 / 378卷

基金：

中国国家自然科学基金;

关键词：

TBBPA; Non-extractable residues (NER); Release; Transformation; BROMINATED FLAME RETARDANTS; NONEXTRACTABLE BOUND RESIDUES; METAPHIRE-GUILLELMI; PESTICIDE-RESIDUES; HUMIC SUBSTANCES; FATE; METABOLISM; BIOAVAILABILITY; IDENTIFICATION; DEGRADATION;

D O I：

10.1016/j.jhazmat.2019.05.059

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Tetrabromobisphenol A (TBBPA) forms large amount of non-extractable residues (NER) in soil. However, the stability of TBBPA-NER with TBBPA degrader in soil had not been determined. In this study, a C-14-tracer was used to follow the release and alteration of TBBPA-derived NER during 214 days of incubation in oxic soil and in the presence or absence of the TBBPA-degrading bacterium Ochrobatrum sp. strain T. In the absence of strain T, 1.89% of the TBBPA and its metabolites were slowly released from the NER, with TBBPA as the predominant component, accompanied by 2.47% mineralization by day 91 of the incubation. The addition of active cells strongly stimulated the release and mineralization of NER (10.93% and 4.64%, respectively), reduced the amount of the ester-linked fraction, and transformed NER from humin-bound to HA-bound forms. Cells added to the soil in sterilized form had much smaller effects on the stability and internal alterations of NER. Among the ester-linked compounds, 47.4% consisted of TBBPA; two metabolites were so detected. These results provide new information on the stability and internal transformation of TBBPA-NER in soil during its long-term incubation and underlines the importance of microbial TBBPA degraders in determining the composition of NER in soil.

引用

页数：7