Benzene polycarboxylic acids as molecular markers of black carbon: Progresses and challenges
文献类型：期刊论文
| 作者 | Vaezzadeh, Vahab1,2; Zhong, Guangcai1,2; Zhang, Gan1,2 |
| 刊名 | Chemosphere
 |
| 出版日期 | 2023 |
| 卷号 | 341页码:140112 |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2023.140112 |
| 英文摘要 | Black carbon (BC) is generated as a result of the pyrolysis of biomass and fossil fuels. Different approaches have been taken to analyse BC in the environment, including thermal, optical and chemical methods. The chemical approach which uses benzene polycarboxylic acids (BPCAs) as molecular markers of BC has gained popularity within the scientific community recently. These pyrogenic molecular markers can be used to reconstruct ancient fire history and human presence. Here we review the development of the BPCA protocols for the analysis of BC and the previous studies that have used these methods. Additionally, this review explores the biogeochemical factors that influence the content and composition of BPCAs, which in turn affect the sources attributed to BC. These factors include the generation temperature of char, photodegradation, biodegradation and the interference of non-pyrogenic organic matter (OM) in BPCA-BC analysis. Different combustion temperatures can yield charred BC with varying degrees of aromatic condensation throughout the BC continuum, while aged soot-BC undergoes photochemical degradation, causing the loss of its original condensed aromatic structure. Photodegradation reduces the degree of BC condensation by preferentially breaking down the most condensed forms, whereas biodegradation primarily mineralizes the smaller and more biolabile BC. Non-pyrogenic sources, such as humic acids (HAs), have been found to contribute up to 25% of BPCA-BC in soil, and their presence can lead to overestimations of BC. Future research should focus on calibrating contemporary BPCA protocols using known reference materials and investigating the role of non-pyrogenic OM in BPCA-BC analysis. ? 2023 Elsevier Ltd |
| 语种 | 英语 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/80311]  |
| 专题 | 有机地球化学国家重点实验室 |
| 作者单位 | 1.CAS Center for Excellence in Deep Earth Science, Guangzhou; 510640, China 2.State Key Laboratory of Organic Geochemistry and Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou; 510640, China |
| 推荐引用方式 GB/T 7714 | Vaezzadeh, Vahab,Zhong, Guangcai,Zhang, Gan. Benzene polycarboxylic acids as molecular markers of black carbon: Progresses and challenges[J]. Chemosphere,2023,341:140112. |
| APA | Vaezzadeh, Vahab,Zhong, Guangcai,&Zhang, Gan.(2023).Benzene polycarboxylic acids as molecular markers of black carbon: Progresses and challenges.Chemosphere,341,140112. |
| MLA | Vaezzadeh, Vahab,et al."Benzene polycarboxylic acids as molecular markers of black carbon: Progresses and challenges".Chemosphere 341(2023):140112. |
入库方式： OAI收割
来源：广州地球化学研究所
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