Sources and secondary transformation potentials of aromatic hydrocarbons observed in a medium-sized city in yangtze river delta region: Emphasis on intermediate-volatility naphthalene
文献类型：期刊论文
| 作者 | Fang, Hua2,7; Wang, Wenjing7; Xu, Hongling7; Huang, Yuzhe7; Jiang, Han7; Wu, Ting2,7; Li, Jun3; Zha, Shuping4; Zhang, Jianxi7; Zhou, Ruicheng7 |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2024-02-01 |
| 卷号 | 318页码:9 |
| 关键词 | Aromatic hydrocarbons Naphthalene Intermediate-volatility organic compounds Source apportionment Secondary transformation potentials Medium-sized city |
| ISSN号 | 1352-2310 |
| DOI | 10.1016/j.atmosenv.2023.120239 |
| 英文摘要 | Aromatic hydrocarbons (AHs) play an important role in the formation of ground-level ozone (O3) and secondary organic aerosols (SOA). Although monoaromatics (MAHs) have been extensively measured in previous studies, the heavy AHs such as 2-ring naphthalene (Nap), a key surrogate of intermediate-volatility organic compounds (IVOCs), were overlooked. Additionally, field observations of AHs are mostly restricted to megacities and limited results have been reported in medium/small-sized cities, which could demonstrate different AH pollution characteristics due to the factors like emission source and population. In this study, sixteen MAHs as well as intermediate-volatility Nap were measured concurrently at six urban sites surrounded by traffic lanes, residential and commercial areas in Wuhu, a medium-sized city in Yangtze River Delta (YRD) region of China, in sum-mertime. During the campaign, the mean concentration of seventeen AHs was 2.85 +/- 0.55 ppb (mean +/- 95% C. I.). Compared to megacities, lower MAHs but comparable or even relatively higher Nap levels were observed here during the sampling period. Source apportionment revealed that gasoline exhaust and industrial emission were the major contributors to AHs, accounting for 32.2%-52.6% and 20.3%-46.2%, respectively, followed by biomass/coal burning (8.5%-14.2%), solvent utilization (4.5%-13.1%) and diesel engine emission (3.0%-7.3%). Interestingly, diesel engine emission made the largest contribution to Nap, while industrial emission was less significant, suggesting that the source of IVOC species might be different from that of traditional VOCs. Among the measured AHs, Nap ranked the largest and the third-largest contributor to calculated SOA formation po-tentials (SOAFPs) and O3 formation potentials (OFPs), respectively. Our results highlight the role of intermediate-volatility Nap in the production of SOA and O3 and reveal different source contributions between Nap and MAHs. It is suggested to re-evaluate the contributions of various sources and precursors to urban O3 and SOA after considering the IVOCs. |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001132130600001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/75994]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Wu, Ting; Wang, Xinming |
| 作者单位 | 1.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 2.Ctr Cooperat Innovat Recovery & Reconstruct Degrad, Wuhu 241000, Peoples R China 3.Wuhu Ecol & Environm Monitoring Ctr Anhui Prov, Wuhu 241005, Peoples R China 4.Wuhu Inst Technol, Wuhu 241006, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Uti, Guangzhou 510640, Peoples R China 7.Anhui Normal Univ, Sch Ecol & Environm, Wuhu 241000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, Hua,Wang, Wenjing,Xu, Hongling,et al. Sources and secondary transformation potentials of aromatic hydrocarbons observed in a medium-sized city in yangtze river delta region: Emphasis on intermediate-volatility naphthalene[J]. ATMOSPHERIC ENVIRONMENT,2024,318:9. |
| APA | Fang, Hua.,Wang, Wenjing.,Xu, Hongling.,Huang, Yuzhe.,Jiang, Han.,...&Wang, Xinming.(2024).Sources and secondary transformation potentials of aromatic hydrocarbons observed in a medium-sized city in yangtze river delta region: Emphasis on intermediate-volatility naphthalene.ATMOSPHERIC ENVIRONMENT,318,9. |
| MLA | Fang, Hua,et al."Sources and secondary transformation potentials of aromatic hydrocarbons observed in a medium-sized city in yangtze river delta region: Emphasis on intermediate-volatility naphthalene".ATMOSPHERIC ENVIRONMENT 318(2024):9. |
入库方式： OAI收割
来源：广州地球化学研究所
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