Temperature effects on optical properties and chemical  composition of secondary organic aerosol derived from &amp;lt;i&amp;gt;n&amp;lt;/i&amp;gt;-dodecane

Li, Junling; Wang, Weigang; Li, Kun; Zhang, Wenyu; Peng, Chao; Zhou, Li; Shi, Bo; Chen, Yan; Liu, Mingyuan; Li, Hong; Ge, Maofa

doi:10.5194/acp-20-8123-2020

Cited by 19 publications

(11 citation statements)

References 90 publications

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“…The experiments were conducted in a 56 m 3 (3.2 m × 6.2 m × 2.5 m) outdoor smog chamber constructed at the Chinese Research Academy of Environmental Sciences (the CRAES chamber; 40 • 02 27.73 N, 116 • 24 41.56 E). Details of the chamber have been described previously (Li et al, 2021). Briefly, the chamber was made of FEP Teflon film, the light transmission of which was above 90 % at the wavelength of 350-900 nm.…”

Section: Experimental Methodsmentioning

confidence: 99%

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Enhanced secondary organic aerosol formation from the photo-oxidation of mixed anthropogenic volatile organic compounds

et al. 2021

Atmos. Chem. Phys.

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Abstract. Vehicular exhaust is one of the important contribution sources of secondary organic aerosol (SOA) in urban areas. Long-chain alkanes and aromatic hydrocarbons are included in gaseous organic pollutants of vehicle emissions, representative of diesel and gasoline vehicles respectively. In this work, the SOA production from individual anthropogenic volatile organic compounds (AVOCs) (n-dodecane, 1,3,5-trimethylbenzene) and mixed AVOCs (n-dodecane + 1,3,5-trimethylbenzene) was studied with a large-scale outdoor smog chamber. Results showed that the SOA formation from the mixed AVOCs was enhanced compared to the predicted SOA mass concentration based on the SOA yield of individual AVOCs. According to the results of mass spectrometry analysis with electrospray ionization time-of-flight mass spectrometry (ESI-ToF-MS), interaction occurred between intermediate products from the two precursors, which could be the main reason for the enhanced SOA production from the mixed AVOC reaction system. The study results could improve our understanding about the contribution of representative precursors from vehicular exhaust to the formation of SOA in urban areas. This study also indicates that further studies on SOA chemistry from the mixed VOC reaction system are needed, as the interactions between them and the effect on SOA formation can give us a further understanding of the SOA formed in the atmosphere.

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Section: Experimental Methodsmentioning

confidence: 99%

“…Thus particle wall loss was accounted for during the experiments. The particle growth data were corrected for wall loss, in which sizedependent coefficients from inert particle wall-loss experiments (ammonium sulfate) were applied to the particle volume data (Li et al, 2021):…”

Section: Wall-loss Correctionsmentioning

confidence: 99%

Enhanced secondary organic aerosol formation from the photo-oxidation of mixed anthropogenic volatile organic compounds

et al. 2021

Atmos. Chem. Phys.

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“…Li et al conducted m -xylene oxidation experiments in high relative humidity conditions (>80%), and their results showed that multiphase reactions could lead to oligomer formation, thus largely enhancing the RI value of the formed SOA. Li et al performed experiments with n -dodecane under room-temperature (25 °C) and low-temperature (5 °C) conditions and found that low-temperature conditions could promote oligomer formation and resulted in the enhancement of the scattering properties of SOA.…”

Section: Impact Of Oxidations On Physicochemical Properties Of Aerosolsmentioning

confidence: 99%

Important Oxidants and Their Impact on the Environmental Effects of Aerosols

Tong

Wang

et al. 2021

J. Phys. Chem. A

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Oxidants are central species in the atmosphere, where they not only determine secondary particle formation but also impact human health and climate change. In general, they are unstable, highly reactive, and recyclable and have been studied in field observations, laboratory studies, and model simulations. The most widely investigated oxidants, such as OH radicals, O 3 , and Cl atom, HONO, NO 3 , N 2 O 5 , and Criegee Intermediates (CIs) have attracted more attention recently. Furthermore, secondary particles formed in the oxidations processes impact the particle physicochemical properties, such as hygroscopicity and optical properties and therefore impact the atmospheric radiation balance. Therefore, the newest investigation results of important oxidants (HONO, NO 3 , N 2 O 5 , and CIs) are reviewed in this manuscript, and the environmental effects of secondary particles formed through corresponding oxidation processes are also stated. Furthermore, some perspectives are further discussed in the article.

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“…As an important contributor to SOA in urban areas, aromatic hydrocarbons are generally concerned about their kinetics (Atkinson and Arey, 2003;Calvert et al, 2002), reaction mechanisms (Tsiligiannis et al, 2019;J. Midey * et al, 2003;Huang et al, 2017c;Wang et al, 2020;Garmash et al, 2019), SOA yield (Cao and Jang, 2007;Kroll et al, 2007;Ng et al, 2007b;Huang et al, 2017b), ozone generation potential (Luo et al, 2019), and SOA physicochemical properties (optical properties, morphology, etc.) (Grosjean, 1981;Li et al, 2018;Li et al, 2017b;Phillips and Smith, 2014;Kim and Paulson, 2013;Huang et al, 2018).…”

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confidence: 99%

“…Long-chain alkanes, as representative substances of intermediate volatile organic compounds (IVOCs), are considered as potential contributor of SOA (Robinson et al, 2007;Trostl et al, 2016;Shiraiwa et al, 2013). The studies about long-chain alkanes includes SOA chemical compositions (Fahnestock et al, 2015;Yee et al, 2013;Aimanant and Ziemann, 2013;Yee et al, 2012), SOA yield (Loza et al, 2014;Tkacik et al, 2012), and SOA optical properties (Li et al, 2017a;Li et al, 2020), etc. The aromatic hydrocarbons and long-chain alkanes are generally studied separately in the laboratory.…”

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confidence: 99%

Enhanced secondary organic aerosol formation from the photo-oxidation of mixed anthropogenic volatile organic compounds

Li¹,

Li²,

Li³

et al. 2020

Preprint

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Abstract. Motor vehicle exhaust is one of the important contribution sources of secondary organic aerosol (SOA) in urban areas. Long-chain alkanes and aromatic hydrocarbons are included in gaseous organic pollutants of vehicle emissions, representative for diesel and gasoline vehicles respectively. In this work, the SOA production from individual anthropogenic volatile organic compounds (AVOCs) (n-dodecane, 1,3,5-trimethylbenzene) and mixed AVOCs (n-dodecane + 1,3,5-trimethylbenzene) were studied with a large-scale outdoor smog chamber. Results showed that the SOA formation from the mixed AVOCs was enhanced compared to the predicted SOA mass concentration based on the SOA yield of individual AVOCs. According to the results of mass spectrometry analysis with electrospray ionization time-of-flight mass spectrometry (ESI-TOF-MS), interaction occurred between intermediate products from the two precursors, which could be the main reason for the enhanced SOA production from the mixed AVOCs reaction system. This study indicates that further studies on SOA chemistry from the mixed VOCs reaction system are needed, as the interactions between them and the effect on SOA formation can give us a further understanding of the SOA formed in the atmosphere.

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Temperature effects on optical properties and chemical composition of secondary organic aerosol derived from <i>n</i>-dodecane

Cited by 19 publications

References 90 publications

Enhanced secondary organic aerosol formation from the photo-oxidation of mixed anthropogenic volatile organic compounds

Enhanced secondary organic aerosol formation from the photo-oxidation of mixed anthropogenic volatile organic compounds

Important Oxidants and Their Impact on the Environmental Effects of Aerosols

Enhanced secondary organic aerosol formation from the photo-oxidation of mixed anthropogenic volatile organic compounds

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