当前位置：
X-MOL 学术
›
J. Hazard. Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Bacterial response to the combined pollution of benzo[a]pyrene and decabromodiphenyl ether in soil under flooding anaerobic condition
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2023-11-30 , DOI: 10.1016/j.jhazmat.2023.133137 Shuai Zhang 1 , Zhaoyang Wang 1 , Lijin Yi 1 , Xiangyu Ye 1 , Fanyu Suo 1 , Xuexia Chen 1 , Xiaoxia Lu 1
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2023-11-30 , DOI: 10.1016/j.jhazmat.2023.133137 Shuai Zhang 1 , Zhaoyang Wang 1 , Lijin Yi 1 , Xiangyu Ye 1 , Fanyu Suo 1 , Xuexia Chen 1 , Xiaoxia Lu 1
Affiliation
|
This study investigated the interaction between the co-pollutants of Benzo[a ]pyrene (BaP) and decabromodiphenyl ether (BDE-209) and the bacterial community in soil under flooding anaerobic condition. Three levels of combined pollution (at nominal concentrations of 1, 5, and 25 mg/kg, respectively, for each pollutant), their corresponding sterilized controls, and a blank control (CK) were set up. During the incubation time of 270 days, BaP attenuated more easily than BDE-209. The second-order rate constant of BaP attenuation was negatively correlated with the Ln value of initial BaP concentration. Maximal difference in bacterial community occurred between the CK soil and the highly polluted soil. Desulfomonilaceae, Parcubacteria and Rhodanobacter were probably involved in BaP and BDE-209 degradation, while Nitrosomonadaceae, Phenylobacterium and Mitochondria were significantly suppressed by BaP and BDE-209 or their degrading products. Genes narI, bcrC, fadJ, had, dmpC, narG and CfrA were involved in the degradation of BaP and BDE-209. Impacts of BaP and BDE-209 on metabolisms of carbon, nitrogen and sulfur were not significant. The results provide guidance for the management and remediation of the contaminated soil.
中文翻译：
淹没厌氧条件下土壤中苯并[a]芘和十溴二苯醚混合污染的细菌响应
本研究调查了苯并[a]芘 （BaP） 和十溴二苯醚 （BDE-209） 的共污染物与洪水厌氧条件下土壤中细菌群落之间的相互作用。设置三个水平的组合污染（每种污染物的标称浓度分别为 1、5 和 25 mg/kg）、相应的灭菌对照和空白对照 （CK）。在 270 天的孵育时间内，BaP 比 BDE-209 更容易减弱。BaP 衰减的二阶速率常数与初始 BaP 浓度的 Ln 值呈负相关。细菌群落差异最大发生在 CK 土壤和重污染土壤之间。Desulfomonilaceae、Parcubacteria 和 Rhodanobacter 可能参与了 BaP 和 BDE-209 的降解，而亚硝基单胞菌科、苯杆菌属和线粒体则被 BaP 和 BDE-209 或其降解产物显著抑制。基因 narI 、 bcrC 、 fadJ 、 had 、 dmpC 、 narG 和 CfrA 参与 BaP 和 BDE-209 的降解。BaP 和 BDE-209 对碳、氮和硫代谢的影响不显著。研究结果为污染土壤的管理和修复提供了指导。
更新日期：2023-11-30
中文翻译：
淹没厌氧条件下土壤中苯并[a]芘和十溴二苯醚混合污染的细菌响应
本研究调查了苯并[a]芘 （BaP） 和十溴二苯醚 （BDE-209） 的共污染物与洪水厌氧条件下土壤中细菌群落之间的相互作用。设置三个水平的组合污染（每种污染物的标称浓度分别为 1、5 和 25 mg/kg）、相应的灭菌对照和空白对照 （CK）。在 270 天的孵育时间内，BaP 比 BDE-209 更容易减弱。BaP 衰减的二阶速率常数与初始 BaP 浓度的 Ln 值呈负相关。细菌群落差异最大发生在 CK 土壤和重污染土壤之间。Desulfomonilaceae、Parcubacteria 和 Rhodanobacter 可能参与了 BaP 和 BDE-209 的降解，而亚硝基单胞菌科、苯杆菌属和线粒体则被 BaP 和 BDE-209 或其降解产物显著抑制。基因 narI 、 bcrC 、 fadJ 、 had 、 dmpC 、 narG 和 CfrA 参与 BaP 和 BDE-209 的降解。BaP 和 BDE-209 对碳、氮和硫代谢的影响不显著。研究结果为污染土壤的管理和修复提供了指导。
京公网安备 11010802027423号