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| DOI | 10.1016/j.atmosenv.2020.118078 |
| Detection of a secondary organic aerosol tracer derived from personal care products | |
| Milani A.; Al-Naiema I.M.; Stone E.A. | |
| 发表日期 | 2021 |
| ISSN | 1352-2310 |
| 卷号 | 246 |
| 英文摘要 | Decamethylcyclopentasiloxane (D5) is frequently used in personal care products (PCPs). In the gas phase, D5 is oxidized to form 1-hydroxynonamethylcyclopentasiloxane (D4TOH), which can partition to the particle phase. Numerous studies have reported secondary organic aerosol (SOA) formation via hydroxyl (OH) radical-initiated oxidation of D5. It is expected that PCPs have a significant impact on SOA, but the extent has not yet been investigated. To date, no studies have reported the occurrence of PCP-derived SOA in ambient particulate matter. This study examined fine particulate matter (PM2.5) collected in Atlanta, GA and Houston, TX and determined D4TOH was present in 28 of 29 and 33 of 46 ambient PM2.5 samples, respectively. Gas chromatographic retention data in the form of the Kováts index is reported for the first time to aid others in identifying this compound in order to assess the impact of PCPs on SOA formation. The estimated concentration of D4TOH ranged from 16 to 185 pg m-3 in Atlanta and 19–206 pg m-3 in Houston. Synthetic musks were also detected in Atlanta and Houston PM2.5 samples, which is consistent with PCPs impacting urban air quality. Because of its specificity and demonstrated detectability, D4TOH may be useful as a tracer of PCP-derived secondary organic aerosol. © 2020 Elsevier Ltd |
| 关键词 | Cyclic siloxaneFine particulate matterPM2.5Secondary organic aerosolSynthetic muskUrban air quality |
| 语种 | 英语 |
| scopus关键词 | Aerosols; Air quality; Gas chromatography; Tracers; Ambient particulate Matter; Chromatographic retention; Decamethylcyclopentasiloxane; Fine particulate matter (PM2.5); Personal care products; Secondary organic aerosols; Synthetic musks; Urban air quality; Particles (particulate matter); decamethylcyclopentasiloxane; musk; siloxane; aerosol composition; air quality; atmospheric pollution; concentration (composition); organic pollutant; oxidation; particulate matter; PPCP; air analysis; air quality; air sampling; concentration (parameter); Georgia (U.S.); mass fragmentography; particulate matter 2.5; priority journal; secondary organic aerosol; Texas; time series analysis; Atlanta; Georgia; Houston County [Georgia]; United States; Atlanta |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/248699 |
| 作者单位 | Department of Chemistry, University of Iowa, Iowa City, IA 52242, United States; Department of Chemistry, College of Science, University of Basrah, Basrah, Iraq; Department of Chemical and Biochemical Engineering, University of Iowa, Iowa City, IA 52242, United States |
| 推荐引用方式 GB/T 7714 | Milani A.,Al-Naiema I.M.,Stone E.A.. Detection of a secondary organic aerosol tracer derived from personal care products[J],2021,246. |
| APA | Milani A.,Al-Naiema I.M.,&Stone E.A..(2021).Detection of a secondary organic aerosol tracer derived from personal care products.ATMOSPHERIC ENVIRONMENT,246. |
| MLA | Milani A.,et al."Detection of a secondary organic aerosol tracer derived from personal care products".ATMOSPHERIC ENVIRONMENT 246(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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