Comparison of three source apportionment methods based on observed and initial HCHO in Taiyuan, China
文献类型：期刊论文
| 作者 | Cui, Yang5; Hua, Jingya4; He, Qiusheng3; Guo, Lili5; Wang, Yonghong2; Wang, Xinming1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-05-20 |
| 卷号 | 926页码:12 |
| 关键词 | Formaldehyde Photochemical losses Multiple linear regression Photochemical age -based parameterization method PMF model |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2024.171828 |
| 英文摘要 | Identifying the sources of formaldehyde (HCHO) is key to reducing the pollution of HCHO and ozone (O3) on the ground level. Using the same datasets applied to the positive matrix factorization (PMF) model by (Hua et al., 2023), the initial concentrations of HCHO were estimated using the photochemical age and the sources of observed and initial HCHO were apportioned based on multiple linear regression (MLR) and photochemical agebased parameterization (PCAP) methods. These results suggest that the source of the initial HCHO can better reflect its contribution. The secondary formation contributed to 49.3-69.1 % of initial HCHO at four sites in Taiyuan based on MLR, which was higher (7.4-36.2 %) than the contributions of secondary formation from observed HCHO. The HCHO was mainly affected by anthropogenic secondary (10.8-34.4 %) and background sources (17.4-78.7 %) based on the PCAP method. We compared the results of the HCHO sources from the MLR, PCAP, and PMF models under photochemical loss. There was good agreement among the emission ratios of acetylene-based HCHO obtained by the different methods at the four sites. The correlation analysis of different source apportionment methods illustrated that primary emissions from the PCAP and the MLR model had the greatest correlation (0.22-0.60). Secondary formations from the PMF and MLR models showed good correlations at all four sites, with R values ranging from 0.42 to 0.83. The HCHO peak of diurnal variation simulated by MLR appeared late compared to the other methods, and the difference in daily variation of HCHO from the PMF model was significantly higher than that of PCAP and MLR. The overlapping conclusions of different source apportionment methods should be considered and used to guide efforts to improve air quality. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001258489600001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78336]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Cui, Yang; He, Qiusheng |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Cont, Beijing 100085, Peoples R China 3.Shanxi Polytech Coll, Dept Mat & Environm Engn, Taiyuan 030006, Peoples R China 4.China Univ Geosci, Sch Environm Studies, Dept Atmospher Sci, Wuhan 430074, Peoples R China 5.Taiyuan Univ Sci & Technol, Sch Environm & Resources, Taiyuan 030024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Yang,Hua, Jingya,He, Qiusheng,et al. Comparison of three source apportionment methods based on observed and initial HCHO in Taiyuan, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,926:12. |
| APA | Cui, Yang,Hua, Jingya,He, Qiusheng,Guo, Lili,Wang, Yonghong,&Wang, Xinming.(2024).Comparison of three source apportionment methods based on observed and initial HCHO in Taiyuan, China.SCIENCE OF THE TOTAL ENVIRONMENT,926,12. |
| MLA | Cui, Yang,et al."Comparison of three source apportionment methods based on observed and initial HCHO in Taiyuan, China".SCIENCE OF THE TOTAL ENVIRONMENT 926(2024):12. |
入库方式： OAI收割
来源：广州地球化学研究所
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