Distribution, influence factors, and biotoxicity of environmentally persistent free radical in soil at a typical coking plant
文献类型：期刊论文
| 作者 | Li, Qianqian; Dai, Lingwen; Wang, Mengjing; Su, Guijin ; Wang, Tieyu; Zhao, Xu; Liu, Xihui; Xu, Yulin; Meng, Jing; Shi, Bin
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2022-08-20 |
| 卷号 | 835期号:0页码:155493 |
| 关键词 | POLYCYCLIC AROMATIC-HYDROCARBONS DISSOLVED ORGANIC-MATTER DEGRADATION PAHS SURFACE PHOTODEGRADATION TRANSFORMATION GENERATION MINERALS BIOCHARS |
| ISSN号 | 0048-9697 |
| 英文摘要 | Environmentally persistent free radicals (EPFRs) are emerging pollutants in contaminated soils and have attracted significant attention. Chinese coke production making a great contribution to the globe is increasingly identified as the non-ignorable source of EPFRs. However, the distribution level, influence factors, and biotoxicity of EPFRs at coking sites remain poorly understood. Herein, a typical coking plant in Tangshan, China, featuring two functional regions (the reconstructed project (RP) and elimination engineering (EE)) was used to study the existence of EPFRs. The spin density of the EPFRs in coking soils was 3.20 x 1020-3.11 x 1021 spins/g with g-factor values of 2.0020-2.0036. The EPFRs presented higher concentrations and g-factor values in RP region than in EE region, and a mixture of carbon-centered radicals and carbon-centered radicals with adjacent oxygen atoms as well as carbon centered radical was ascertained in the former and the latter, respectively. Correlation analysis and FT-ICR-MS results indicated that polycyclic aromatic hydrocarbons (PAH) together with other unsaturated hydrocarbons and condensed aromatic contaminants, might contribute to the EPFRs formation in the soils of RP region, whereas PAHs were the main source of EPFRs in EE region. Soil components were determined to investigate the influence factors in EPFRs formation. Cu and Fe2O3 were recognized as the markedly positive influence factors, while TOC had a negative impact on EPFR formation. Visible light irradiation can induce the transformation and generation of EPFRs. As representative contaminants, both toluene and 2-chlorophenol can create EPFRs in coking soil under visible light irradiation. The potential biotoxicity tests of Photobacterium phosphoreum T3 spp. showed that EPFRs from the soils diminished bacterial |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47652]  |
| 专题 | 生态环境研究中心_环境纳米材料实验室 |
| 通讯作者 | Su, Guijin |
| 作者单位 | 1.Shantou Univ, Guangdong Prov Key Lab Marine Disaster Predict & P, Shantou 515063, Peoples R China 2.City Univ Hong Kong, State Key Lab Marine Pollut, Hong Kong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Nanotechnol & Hlth Effects, State Key Lab Environm Chem & Ecotoxicol, POB 2871, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Qianqian,Dai, Lingwen,Wang, Mengjing,et al. Distribution, influence factors, and biotoxicity of environmentally persistent free radical in soil at a typical coking plant[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,835(0):155493. |
| APA | Li, Qianqian.,Dai, Lingwen.,Wang, Mengjing.,Su, Guijin.,Wang, Tieyu.,...&Shi, Bin.(2022).Distribution, influence factors, and biotoxicity of environmentally persistent free radical in soil at a typical coking plant.SCIENCE OF THE TOTAL ENVIRONMENT,835(0),155493. |
| MLA | Li, Qianqian,et al."Distribution, influence factors, and biotoxicity of environmentally persistent free radical in soil at a typical coking plant".SCIENCE OF THE TOTAL ENVIRONMENT 835.0(2022):155493. |
入库方式： OAI收割
来源：生态环境研究中心
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