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ACP | Articles | Volume 20, issue 2
Atmos. Chem. Phys., 20, 1075–1087, 2020
https://doi.org/10.5194/acp-20-1075-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-1075-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 20, 1075–1087, 2020
https://doi.org/10.5194/acp-20-1075-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-1075-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Research article 27 Jan 2020
Research article | 27 Jan 2020
Cloud history can change water–ice–surface interactions of oxide mineral aerosols: a case study on silica
Ahmed Abdelmonem et al.
Related authors
Ramakrishna Ramisetty, Ahmed Abdelmonem, Xiaoli Shen, Harald Saathoff, Thomas Leisner, and Claudia Mohr
Atmos. Meas. Tech., 11, 4345–4360, https://doi.org/10.5194/amt-11-4345-2018, https://doi.org/10.5194/amt-11-4345-2018, 2018
Short summary
Short summary
In this study we coupled a laser ablation aerosol time-of-flight (LAAPTOF) single-particle mass spectrometer, originally equipped with an excimer laser, to a femtosecond laser. The objective was to assess the influence of the higher laser power density of the femtosecond laser on ablation–ionization of atmospheric particles, ion signal, and ultimately quantitative abilities of the single-particle mass spectrometer.
Martin Schnaiter, Emma Järvinen, Ahmed Abdelmonem, and Thomas Leisner
Atmos. Meas. Tech., 11, 341–357, https://doi.org/10.5194/amt-11-341-2018, https://doi.org/10.5194/amt-11-341-2018, 2018
Short summary
Short summary
PHIPS-HALO is a novel aircraft instrument for cloud research. It combines microscopic imaging of single cloud particles with the measurement of their spacial light scattering properties. The knowledge of how atmospheric ice particles in clouds scatter visible light is important for improving future climate models.
Ahmed Abdelmonem
Atmos. Chem. Phys., 17, 10733–10741, https://doi.org/10.5194/acp-17-10733-2017, https://doi.org/10.5194/acp-17-10733-2017, 2017
Short summary
Short summary
On the basis of supercooled SHG spectroscopy, I report molecular-level evidence for the existence of one- and two-step deposition freezing depending on the surface type and the supersaturation conditions. In addition, immersion freezing shows a transient ice phase with a lifetime of c. 1 min. This study provides new insights into atmospheric processes and can impact various industrial and research branches, particularly climate change, weather modification, and tracing water in the hydrosphere.
Ahmed Abdelmonem, Ellen H. G. Backus, Nadine Hoffmann, M. Alejandra Sánchez, Jenée D. Cyran, Alexei Kiselev, and Mischa Bonn
Atmos. Chem. Phys., 17, 7827–7837, https://doi.org/10.5194/acp-17-7827-2017, https://doi.org/10.5194/acp-17-7827-2017, 2017
Short summary
Short summary
We report the effect of surface charge on heterogeneous immersion freezing for the atmospherically relevant sapphire surface. Combining linear and nonlinear optical techniques and investigating isolated drops, we find that charge-induced surface templating is detrimental for ice nucleation on α-alumina surface. This study provides new insights into atmospheric processes and can impact various industrial and research branches, particularly climate change and tracing of water in the hydrosphere.
Ahmed Abdelmonem, Emma Järvinen, Denis Duft, Edwin Hirst, Steffen Vogt, Thomas Leisner, and Martin Schnaiter
Atmos. Meas. Tech., 9, 3131–3144, https://doi.org/10.5194/amt-9-3131-2016, https://doi.org/10.5194/amt-9-3131-2016, 2016
Short summary
Short summary
The properties of ice crystals present in mixed-phase and ice clouds influence the radiation properties, precipitation occurrence and lifetime of these clouds. It is necessary to investigate the optical and microphysical properties of cloud particles particularly in situ, and to get correlation between these properties. To this end we have developed PHIPS-HALO to measure the optical properties and the corresponding microphysical parameters of individual cloud particles simultaneously.
Martin Schnaiter, Emma Järvinen, Paul Vochezer, Ahmed Abdelmonem, Robert Wagner, Olivier Jourdan, Guillaume Mioche, Valery N. Shcherbakov, Carl G. Schmitt, Ugo Tricoli, Zbigniew Ulanowski, and Andrew J. Heymsfield
Atmos. Chem. Phys., 16, 5091–5110, https://doi.org/10.5194/acp-16-5091-2016, https://doi.org/10.5194/acp-16-5091-2016, 2016
A. Abdelmonem, J. Lützenkirchen, and T. Leisner
Atmos. Meas. Tech., 8, 3519–3526, https://doi.org/10.5194/amt-8-3519-2015, https://doi.org/10.5194/amt-8-3519-2015, 2015
Short summary
Short summary
This manuscript belongs and is important to the environmental and atmospheric science, particularly cloud formation and cloud seeding, and presents a setup to apply Second Harmonic Generation spectroscopy to heterogeneous freezing research. We describe the setup and provide first results on temperature-dependent structural changes of water on the surfaces of two relevant atmospheric aerosol substances (sapphire and mica as poor and good ice nucleators, respectively).
Ramakrishna Ramisetty, Ahmed Abdelmonem, Xiaoli Shen, Harald Saathoff, Thomas Leisner, and Claudia Mohr
Atmos. Meas. Tech., 11, 4345–4360, https://doi.org/10.5194/amt-11-4345-2018, https://doi.org/10.5194/amt-11-4345-2018, 2018
Short summary
Short summary
In this study we coupled a laser ablation aerosol time-of-flight (LAAPTOF) single-particle mass spectrometer, originally equipped with an excimer laser, to a femtosecond laser. The objective was to assess the influence of the higher laser power density of the femtosecond laser on ablation–ionization of atmospheric particles, ion signal, and ultimately quantitative abilities of the single-particle mass spectrometer.
Martin Schnaiter, Emma Järvinen, Ahmed Abdelmonem, and Thomas Leisner
Atmos. Meas. Tech., 11, 341–357, https://doi.org/10.5194/amt-11-341-2018, https://doi.org/10.5194/amt-11-341-2018, 2018
Short summary
Short summary
PHIPS-HALO is a novel aircraft instrument for cloud research. It combines microscopic imaging of single cloud particles with the measurement of their spacial light scattering properties. The knowledge of how atmospheric ice particles in clouds scatter visible light is important for improving future climate models.
Ahmed Abdelmonem
Atmos. Chem. Phys., 17, 10733–10741, https://doi.org/10.5194/acp-17-10733-2017, https://doi.org/10.5194/acp-17-10733-2017, 2017
Short summary
Short summary
On the basis of supercooled SHG spectroscopy, I report molecular-level evidence for the existence of one- and two-step deposition freezing depending on the surface type and the supersaturation conditions. In addition, immersion freezing shows a transient ice phase with a lifetime of c. 1 min. This study provides new insights into atmospheric processes and can impact various industrial and research branches, particularly climate change, weather modification, and tracing water in the hydrosphere.
Ahmed Abdelmonem, Ellen H. G. Backus, Nadine Hoffmann, M. Alejandra Sánchez, Jenée D. Cyran, Alexei Kiselev, and Mischa Bonn
Atmos. Chem. Phys., 17, 7827–7837, https://doi.org/10.5194/acp-17-7827-2017, https://doi.org/10.5194/acp-17-7827-2017, 2017
Short summary
Short summary
We report the effect of surface charge on heterogeneous immersion freezing for the atmospherically relevant sapphire surface. Combining linear and nonlinear optical techniques and investigating isolated drops, we find that charge-induced surface templating is detrimental for ice nucleation on α-alumina surface. This study provides new insights into atmospheric processes and can impact various industrial and research branches, particularly climate change and tracing of water in the hydrosphere.
Ahmed Abdelmonem, Emma Järvinen, Denis Duft, Edwin Hirst, Steffen Vogt, Thomas Leisner, and Martin Schnaiter
Atmos. Meas. Tech., 9, 3131–3144, https://doi.org/10.5194/amt-9-3131-2016, https://doi.org/10.5194/amt-9-3131-2016, 2016
Short summary
Short summary
The properties of ice crystals present in mixed-phase and ice clouds influence the radiation properties, precipitation occurrence and lifetime of these clouds. It is necessary to investigate the optical and microphysical properties of cloud particles particularly in situ, and to get correlation between these properties. To this end we have developed PHIPS-HALO to measure the optical properties and the corresponding microphysical parameters of individual cloud particles simultaneously.
Martin Schnaiter, Emma Järvinen, Paul Vochezer, Ahmed Abdelmonem, Robert Wagner, Olivier Jourdan, Guillaume Mioche, Valery N. Shcherbakov, Carl G. Schmitt, Ugo Tricoli, Zbigniew Ulanowski, and Andrew J. Heymsfield
Atmos. Chem. Phys., 16, 5091–5110, https://doi.org/10.5194/acp-16-5091-2016, https://doi.org/10.5194/acp-16-5091-2016, 2016
A. Abdelmonem, J. Lützenkirchen, and T. Leisner
Atmos. Meas. Tech., 8, 3519–3526, https://doi.org/10.5194/amt-8-3519-2015, https://doi.org/10.5194/amt-8-3519-2015, 2015
Short summary
Short summary
This manuscript belongs and is important to the environmental and atmospheric science, particularly cloud formation and cloud seeding, and presents a setup to apply Second Harmonic Generation spectroscopy to heterogeneous freezing research. We describe the setup and provide first results on temperature-dependent structural changes of water on the surfaces of two relevant atmospheric aerosol substances (sapphire and mica as poor and good ice nucleators, respectively).
Related subject area
Subject: Aerosols | Research Activity: Laboratory Studies | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
Biomass-burning-derived particles from a wide variety of fuels – Part 2: Effects of photochemical aging on particle optical and chemical properties
Measured solid state and subcooled liquid vapour pressures of nitroaromatics using Knudsen effusion mass spectrometry
Polar semivolatile organic compounds in biomass-burning emissions and their chemical transformations during aging in an oxidation flow reactor
Temperature effects on optical properties and chemical composition of secondary organic aerosol derived from n-dodecane
An investigation on hygroscopic properties of 15 black carbon (BC)-containing particles from different carbon sources: roles of organic and inorganic components
Deconvolution of FIGAERO–CIMS thermal desorption profiles using positive matrix factorisation to identify chemical and physical processes during particle evaporation
Mineralogy and geochemistry of Asian dust: dependence on migration path, fractionation, and reactions with polluted air
Photochemical transformation of residential wood combustion emissions: dependence of organic aerosol composition on OH exposure
Seawater analysis by ambient mass-spectrometry-based seaomics
Molecular composition and photochemical evolution of water-soluble organic carbon (WSOC) extracted from field biomass burning aerosols using high-resolution mass spectrometry
Heterogeneous oxidation of amorphous organic aerosol surrogates by O3, NO3, and OH at typical tropospheric temperatures
High levels of primary biogenic organic aerosols are driven by only a few plant-associated microbial taxa
Formation of highly oxygenated organic molecules from chlorine-atom-initiated oxidation of alpha-pinene
The evolutionary behavior of chromophoric brown carbon during ozone aging of fine particles from biomass burning
Technical note: Preparation and purification of atmospherically relevant α-hydroxynitrate esters of monoterpenes
Effect of inorganic-to-organic mass ratio on the heterogeneous OH reaction rates of erythritol: implications for atmospheric chemical stability of 2-methyltetrols
Evaluation of the Chemical Composition of Gas and Particle Phase Products of Aromatic Oxidation
Oxygenated products formed from OH-initiated reactions of trimethylbenzene: Autoxidation and accretion
Glyoxal's impact on dry ammonium salts: fast and reversible surface aerosol browning
Ambient air quality in the Kathmandu Valley, Nepal, during the pre-monsoon: concentrations and sources of particulate matter and trace gases
Morphology and size of the particles emitted from a gasoline-direct-injection-engine vehicle and their ageing in an environmental chamber
A robust clustering algorithm for analysis of composition-dependent organic aerosol thermal desorption measurements
Biomass-burning-derived particles from a wide variety of fuels – Part 1: Properties of primary particles
Molecular composition and photochemical lifetimes of brown carbon chromophores in biomass burning organic aerosol
Relationship between the molecular composition, visible light absorption, and health-related properties of smoldering woodsmoke aerosols
Impact of NOx on secondary organic aerosol (SOA) formation from α-pinene and β-pinene photo-oxidation: the role of highly oxygenated organic nitrates
Impact of isolated atmospheric aging processes on the cloud condensation nuclei activation of soot particles
Secondary organic aerosol formation from OH-initiated oxidation of m-xylene: effects of relative humidity on yield and chemical composition
A study of volatility by composition, heating, and dilution measurements of secondary organic aerosol from 1,3,5-trimethylbenzene
Effects of NO2 and C3H6 on the heterogeneous oxidation of SO2 on TiO2 in the presence or absence of UV–Vis irradiation
Single-particle experiments measuring humidity and inorganic salt effects on gas-particle partitioning of butenedial
Gaseous, PM2.5 mass, and speciated emission factors from laboratory chamber peat combustion
Molecular characterization of polar organic aerosol constituents in off-road engine emissions using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS): implications for source apportionment
Complex plant-derived organic aerosol as ice-nucleating particles – more than a sum of their parts?
Secondary organic aerosol formation from the laboratory oxidation of biomass burning emissions
Chemical composition and hydrolysis of organic nitrate aerosol formed from hydroxyl and nitrate radical oxidation of α-pinene and β-pinene
A review of experimental techniques for aerosol hygroscopicity studies
Enhanced heterogeneous uptake of sulfur dioxide on mineral particles through modification of iron speciation during simulated cloud processing
Photomineralization mechanism changes the ability of dissolved organic matter to activate cloud droplets and to nucleate ice crystals
A large contribution of anthropogenic organo-nitrates to secondary organic aerosol in the Alberta oil sands
Secondary organic aerosol formation from smoldering and flaming combustion of biomass: a box model parametrization based on volatility basis set
Halogen activation and radical cycling initiated by imidazole-2-carboxaldehyde photochemistry
Predictions of diffusion rates of large organic molecules in secondary organic aerosols using the Stokes–Einstein and fractional Stokes–Einstein relations
Photochemical aging of atmospherically reactive organic compounds involving brown carbon at the air–aqueous interface
Secondary organic aerosol formation from α-pinene, alkanes, and oil-sands-related precursors in a new oxidation flow reactor
Effects of inorganic salts on the heterogeneous OH oxidation of organic compounds: insights from methylglutaric acid–ammonium sulfate
Liquid–liquid phase separation in secondary organic aerosol particles produced from α-pinene ozonolysis and α-pinene photooxidation with/without ammonia
H2SO4 and particle production in a photolytic flow reactor: chemical modeling, cluster thermodynamics and contamination issues
Temperature effects on sulfuric acid aerosol nucleation and growth: initial results from the TANGENT study
Measuring light absorption by freshly emitted organic aerosols: optical artifacts in traditional solvent-extraction-based methods
Christopher D. Cappa, Christopher Y. Lim, David H. Hagan, Matthew Coggon, Abigail Koss, Kanako Sekimoto, Joost de Gouw, Timothy B. Onasch, Carsten Warneke, and Jesse H. Kroll
Atmos. Chem. Phys., 20, 8511–8532, https://doi.org/10.5194/acp-20-8511-2020, https://doi.org/10.5194/acp-20-8511-2020, 2020
Short summary
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Smoke from combustion of a wide range of biomass fuels (e.g., leaves, twigs, logs, peat, and dung) was photochemically aged in a small chamber for up to 8 d of equivalent atmospheric aging. Upon aging, the particle chemical composition and ability to absorb sunlight changed owing to reactions in both the gas and particulate phases. We developed a model to explain the observations and used this to derive insights into the aging of smoke in the atmosphere.
Petroc D. Shelley, Thomas J. Bannan, Stephen D. Worrall, M. Rami Alfarra, Ulrich K. Krieger, Carl J. Percival, Arthur Garforth, and David Topping
Atmos. Chem. Phys., 20, 8293–8314, https://doi.org/10.5194/acp-20-8293-2020, https://doi.org/10.5194/acp-20-8293-2020, 2020
Short summary
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The methods used to estimate the vapour pressures of compounds in the atmosphere typically perform poorly when applied to organic compounds found in the atmosphere. New measurements have been made and compared to previous experimental data and estimated values so that the limitations within the estimation methods can be identified and in the future be rectified.
Deep Sengupta, Vera Samburova, Chiranjivi Bhattarai, Adam C. Watts, Hans Moosmüller, and Andrey Y. Khlystov
Atmos. Chem. Phys., 20, 8227–8250, https://doi.org/10.5194/acp-20-8227-2020, https://doi.org/10.5194/acp-20-8227-2020, 2020
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This paper presents important results on the atmospheric chemistry of combustion emissions. Organic compounds from these emissions can contribute significantly to chemical and physical properties of atmospheric aerosols. In this paper, a detailed chemical analysis of gas- and particle-phase polar organic compounds from the laboratory combustion of globally important fuels is presented. The aging experiments were performed to understand the fate of biomass-burning organics in the atmosphere.
Junling Li, Weigang Wang, Kun Li, Wenyu Zhang, Chao Peng, Li Zhou, Bo Shi, Yan Chen, Mingyuan Liu, Hong Li, and Maofa Ge
Atmos. Chem. Phys., 20, 8123–8137, https://doi.org/10.5194/acp-20-8123-2020, https://doi.org/10.5194/acp-20-8123-2020, 2020
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Long-chain alkanes (a large fraction of diesel fuel and its exhaust) are important potential contributors of SOA. Through the analysis of the components of formed SOA, we found that low-temperature conditions promote the oligomerization of n-dodecane, and the degree of oligomerization can reach tetramerization. The presence of the oligomers enhances the light extinction of the particles. UV-scattering particles in the boundary layer can accelerate photochemical reactions and haze production.
Minli Wang, Yiqun Chen, Heyun Fu, Xiaolei Qu, Bengang Li, Shu Tao, and Dongqiang Zhu
Atmos. Chem. Phys., 20, 7941–7954, https://doi.org/10.5194/acp-20-7941-2020, https://doi.org/10.5194/acp-20-7941-2020, 2020
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The mechanism and factors controlling the hygroscopicity of black-carbon-containing particles (BCPs) from different carbon sources are not well understood. We thoroughly characterized the chemical and compositional properties of 15 samples of BCPs from different sources (wood, herb, and soot) and further investigated their hygroscopicity. Depending on the carbon source, organic carbon and dissolved mineral contents were key determinants of the equilibrium and kinetics of water uptake by BCPs.
Angela Buchholz, Arttu Ylisirniö, Wei Huang, Claudia Mohr, Manjula Canagaratna, Douglas R. Worsnop, Siegfried Schobesberger, and Annele Virtanen
Atmos. Chem. Phys., 20, 7693–7716, https://doi.org/10.5194/acp-20-7693-2020, https://doi.org/10.5194/acp-20-7693-2020, 2020
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To understand the role of aerosol particles in the atmosphere, it is necessary to know their detailed chemical composition and physical properties, especially volatility. The thermal desorption data from FIGAERO–CIMS provides both but are difficult to analyse. With positive matrix factorisation, we can separate instrument background from the real signal. Compounds can be classified by their apparent volatility, and the contribution of thermal decomposition in the instrument can be identified.
Gi Young Jeong
Atmos. Chem. Phys., 20, 7411–7428, https://doi.org/10.5194/acp-20-7411-2020, https://doi.org/10.5194/acp-20-7411-2020, 2020
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During long-range transport, mineral dust interacts with the atmosphere, biosphere, cryosphere, and pedosphere, influencing ecosystems, the atmospheric energy balance, and air quality. This study analyzed the mineral and chemical compositions of Asian dust samples collected during 14 years in Korea. The result showed mineralogical and geochemical variation depending on the dust migration path, fractionation, and atmospheric reactions as well as average properties.
Anni Hartikainen, Petri Tiitta, Mika Ihalainen, Pasi Yli-Pirilä, Jürgen Orasche, Hendryk Czech, Miika Kortelainen, Heikki Lamberg, Heikki Suhonen, Hanna Koponen, Liqing Hao, Ralf Zimmermann, Jorma Jokiniemi, Jarkko Tissari, and Olli Sippula
Atmos. Chem. Phys., 20, 6357–6378, https://doi.org/10.5194/acp-20-6357-2020, https://doi.org/10.5194/acp-20-6357-2020, 2020
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Residential wood combustion emits large amounts of organic compounds, which are transformed in the atmosphere via photochemical ageing reactions. We assessed this organic emission at various stages of exposure with an oxidation flow reactor. Ageing led to major changes in both gaseous and particulate phases including increased acidic compounds and transformation of the polycyclic aromatic compounds. Such changes have serious implications for the health- and climate-related effects of combustion.
Nicolás Zabalegui, Malena Manzi, Antoine Depoorter, Nathalie Hayeck, Marie Roveretto, Chunlin Li, Manuela van Pinxteren, Hartmut Herrmann, Christian George, and María Eugenia Monge
Atmos. Chem. Phys., 20, 6243–6257, https://doi.org/10.5194/acp-20-6243-2020, https://doi.org/10.5194/acp-20-6243-2020, 2020
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A new approach to bridging different fields of science by studying the air–sea interface is described. An untargeted ambient mass-spectrometry-based metabolomics method enables the study of enriched organic compounds found on the sea surface for air–water transfer processes. Results from the metabolomics experiments and a lab-to-field approach provide new opportunities for characterizing the seawater organic-matter content and discovering compounds involved in aerosol-formation processes.
Jing Cai, Xiangying Zeng, Guorui Zhi, Sasho Gligorovski, Guoying Sheng, Zhiqiang Yu, Xinming Wang, and Ping'an Peng
Atmos. Chem. Phys., 20, 6115–6128, https://doi.org/10.5194/acp-20-6115-2020, https://doi.org/10.5194/acp-20-6115-2020, 2020
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The composition and light-induced evolution of a water-soluble organic carbon mixture from fresh biomass burning aerosols was investigated with direct infusion electrospray ionisation high-resolution mass spectrometry (HRMS) and liquid chromatography coupled with HRMS. Our findings indicate that the water-soluble organic fraction of combustion-derived aerosols has the potential to form more oxidised organic matter, contributing to the highly oxygenated nature of atmospheric organic aerosols.
Jienan Li, Seanna M. Forrester, and Daniel A. Knopf
Atmos. Chem. Phys., 20, 6055–6080, https://doi.org/10.5194/acp-20-6055-2020, https://doi.org/10.5194/acp-20-6055-2020, 2020
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Organic aerosol is ubiquitous in the atmosphere and can change its phase state from liquid to solid in response to temperature. Our laboratory measurements demonstrate that the chemical reactivity of typical organic aerosol species with atmospheric oxidants is modulated by the species’ phase state. We find that under temperatures typical of the middle and upper troposphere the chemical lifetime of organic aerosol can be significantly extended due to the reduced reactive uptake of gas oxidants.
Abdoulaye Samaké, Aurélie Bonin, Jean-Luc Jaffrezo, Pierre Taberlet, Samuël Weber, Gaëlle Uzu, Véronique Jacob, Sébastien Conil, and Jean M. F. Martins
Atmos. Chem. Phys., 20, 5609–5628, https://doi.org/10.5194/acp-20-5609-2020, https://doi.org/10.5194/acp-20-5609-2020, 2020
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Despite being a major source of coarse organic matter, primary biogenic organic aerosols (PBOAs) remain poorly implemented in source-resolved chemical transport models. This study, based on an intensive field sampling of aerosols, combined physicochemical characterizations of PM10 with DNA high-throughput sequencing to provide a comprehensive understanding of the microbial fingerprints associated with primary sugar compounds (tracers of PBOAs) and their main surrounding environmental sources.
Yonghong Wang, Matthieu Riva, Hongbin Xie, Liine Heikkinen, Simon Schallhart, Qiaozhi Zha, Chao Yan, Xu-Cheng He, Otso Peräkylä, and Mikael Ehn
Atmos. Chem. Phys., 20, 5145–5155, https://doi.org/10.5194/acp-20-5145-2020, https://doi.org/10.5194/acp-20-5145-2020, 2020
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Chamber experiments were conducted with alpha-pinene and chlorine under low- and high-nitrogen-oxide (NOX) conditions. We estimated the HOM yields from chlorine-initiated oxidation of alpha-pinene under low-NOX conditions to be around 1.8 %, though with a uncertainty range (0.8 %–4 %) due to lack of suitable calibration methods. Our study clearly demonstrates that the chlorine-atom-initiated oxidation of alpha-pinene can produce low-volatility organic compounds.
Xingjun Fan, Tao Cao, Xufang Yu, Yan Wang, Xin Xiao, Feiyue Li, Yue Xie, Wenchao Ji, Jianzhong Song, and Ping'an Peng
Atmos. Chem. Phys., 20, 4593–4605, https://doi.org/10.5194/acp-20-4593-2020, https://doi.org/10.5194/acp-20-4593-2020, 2020
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A particle-phase O3 oxidation of biomass burning (BB) smoke particles was conducted to investigate the evolution of brown carbon (BrC) therein. The O3 aging induced the decomposition of chromophores and fluorophores. EEM–PARAFAC showed a predominant decomposition of protein-like substances and a gradual increase proportion of humic-like substances for BB BrC during O3 aging. The dynamic spectral behavior of chromophores and functional groups within BrC was further explored by 2D-COS.
Elena Ali McKnight, Nicole P. Kretekos, Demi Owusu, and Rebecca Lyn LaLonde
Atmos. Chem. Phys., 20, 4241–4254, https://doi.org/10.5194/acp-20-4241-2020, https://doi.org/10.5194/acp-20-4241-2020, 2020
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This report describes a simple, safe and effective method to prepare nitrate esters of terpenes (carene, limonene, perillic alcohol, beta-pinene and alpha-pinene) which are key oxidation products in the atmosphere. These compounds are implicated in the formation of secondary organic aerosols. A compilation of the relevant spectroscopic data has been presented. The availability of these compounds and their characterization data will enable further study of the structure–reactivity relationships.
Rongshuang Xu, Hoi Ki Lam, Kevin R. Wilson, James F. Davies, Mijung Song, Wentao Li, Ying-Lung Steve Tse, and Man Nin Chan
Atmos. Chem. Phys., 20, 3879–3893, https://doi.org/10.5194/acp-20-3879-2020, https://doi.org/10.5194/acp-20-3879-2020, 2020
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Atmospheric particles, a complex mixture of inorganic salts, organic compounds and water, can continually undergo heterogeneous oxidation initiated by gas-phase oxidants at the particle surface. We found that ammonium sulfate can decelerate the rate of heterogeneous OH reaction with 2-methyltetrols when the inorganic-to-organic mass ratio increases. These results would suggest 2-methyltetrols are likely chemically stable against heterogeneous OH oxidation in the atmosphere.
Archit Mehra, Yuwei Wang, Jordan E. Krechmer, Andrew Lambe, Francesca Majluf, Melissa A. Morris, Michael Priestley, Thomas J. Bannan, Daniel J. Bryant, Kelly L. Pereira, Jacqueline F. Hamilton, Andrew R. Rickard, Mike J. Newland, Harald Stark, Philip Croteau, John T. Jayne, Douglas R. Worsnop, Manjula R. Canagaratna, Lin Wang, and Hugh Coe
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2020-161, https://doi.org/10.5194/acp-2020-161, 2020
Revised manuscript accepted for ACP
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Aromatic volatile organic compounds (VOCs) emitted from anthropogenic activity are important for tropospheric ozone and secondary organic aerosol (SOA) formation. Here we present a detailed chemical characterisation of the SOA from four C9-aromatic isomers and a polycyclic aromatic hydrocarbon (PAH). We identify and compare their oxidation products in the gas and particle phases, showing different relative importance of oxidation pathways and proportions of highly oxygenated organic molecules.
Yuwei Wang, Archit Mehra, Jordan E. Krechmer, Gan Yang, Xiaoyu Hu, Yiqun Lu, Andrew Lambe, Manjula Canagaratna, Jianmin Chen, Douglas Worsnop, Hugh Coe, and Lin Wang
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2020-165, https://doi.org/10.5194/acp-2020-165, 2020
Revised manuscript accepted for ACP
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A series of OH-initiated oxidation experiments of trimethylbenzene were investigated in the absence and presence of NOx. A large number of C9 products with 1–11 oxygen atoms and C18 products presumably formed from dimerization of C9 peroxy radicals were observed,hinting the extensive existence of autoxidation and accretion reaction pathways.The presence of NOx would suppress the formation of C18 highly oxygenated molecules and enhance the formation of organonitrates,and even dinitrate compounds.
David O. De Haan, Lelia N. Hawkins, Kevin Jansen, Hannah G. Welsh, Raunak Pednekar, Alexia de Loera, Natalie G. Jimenez, Margaret A. Tolbert, Mathieu Cazaunau, Aline Gratien, Antonin Bergé, Edouard Pangui, Paola Formenti, and Jean-François Doussin
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2020-203, https://doi.org/10.5194/acp-2020-203, 2020
Revised manuscript accepted for ACP
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When exposed to glyoxal in chamber experiments, dry ammonium or methylammonium sulfate particles turn brown immediately and reversibly without increasing in size. Much less browning was observed on wet aerosol particles, and no browning was observed with sodium sulfate aerosol. While estimated dry aerosol light absorption caused by background glyoxal (70 ppt) is insignificant compared to that of secondary brown carbon overall, in polluted regions this process could be a source of brown carbon.
Md. Robiul Islam, Thilina Jayarathne, Isobel J. Simpson, Benjamin Werden, John Maben, Ashley Gilbert, Puppala S. Praveen, Sagar Adhikari, Arnico K. Panday, Maheswar Rupakheti, Donald R. Blake, Robert J. Yokelson, Peter F. DeCarlo, William C. Keene, and Elizabeth A. Stone
Atmos. Chem. Phys., 20, 2927–2951, https://doi.org/10.5194/acp-20-2927-2020, https://doi.org/10.5194/acp-20-2927-2020, 2020
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The Kathmandu Valley experiences high levels of air pollution. In this study, atmospheric gases and particulate matter were characterized by online and off-line measurements, with an emphasis on understanding their sources. The major sources of particulate matter and trace gases were identified as garbage burning, biomass burning, and vehicles. The majority of secondary organic aerosol was attributed to anthropogenic precursors, while a minority was attributed to biogenic gases.
Jiaoping Xing, Longyi Shao, Wenbin Zhang, Jianfei Peng, Wenhua Wang, Shijin Shuai, Min Hu, and Daizhou Zhang
Atmos. Chem. Phys., 20, 2781–2794, https://doi.org/10.5194/acp-20-2781-2020, https://doi.org/10.5194/acp-20-2781-2020, 2020
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Our results highlight the contribution of gasoline-direct-injection (GDI) vehicles to aerosols, both primary and secondary. The major particles from GDI vehicles are organic and soot particles; they actively participate in chemical conversions in the atmosphere, leading to morphology and composition changes in hours. Rapid ageing could be attributable to the acid-catalysed mechanism and high concentrations of gaseous pollutants. These results would be beneficial for control of PM2.5 pollution.
Ziyue Li, Emma L. D'Ambro, Siegfried Schobesberger, Cassandra J. Gaston, Felipe D. Lopez-Hilfiker, Jiumeng Liu, John E. Shilling, Joel A. Thornton, and Christopher D. Cappa
Atmos. Chem. Phys., 20, 2489–2512, https://doi.org/10.5194/acp-20-2489-2020, https://doi.org/10.5194/acp-20-2489-2020, 2020
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We discuss the development and application of a robust clustering method for the interpretation of compound-specific organic aerosol thermal desorption profiles. We demonstrate the utility of clustering for analysis and interpretation of the composition and volatility of secondary organic aerosol. We show that the thermal desorption profiles are represented by only 9–13 distinct clusters, with the number of clusters obtained dependent on the precursor and formation conditions.
Crystal D. McClure, Christopher Y. Lim, David H. Hagan, Jesse H. Kroll, and Christopher D. Cappa
Atmos. Chem. Phys., 20, 1531–1547, https://doi.org/10.5194/acp-20-1531-2020, https://doi.org/10.5194/acp-20-1531-2020, 2020
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We characterized various optical, chemical, and physical properties of particles produced from combustion of a variety of different biomass fuels, many representative of those found in the western US. We find that many properties scale with the ratio between bulk average organic aerosol and black carbon mass concentrations, although there are some properties that do not.
Lauren T. Fleming, Peng Lin, James M. Roberts, Vanessa Selimovic, Robert Yokelson, Julia Laskin, Alexander Laskin, and Sergey A. Nizkorodov
Atmos. Chem. Phys., 20, 1105–1129, https://doi.org/10.5194/acp-20-1105-2020, https://doi.org/10.5194/acp-20-1105-2020, 2020
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We have explored the nature and stability of molecules that give biomass burning smoke its faint brown color. Different types of biomass fuels were burned and the resulting smoke was collected for a detailed chemical analysis. We found that brown molecules in smoke become less colored when they are irradiated by sunlight, but this photobleaching process is very slow. This means that biomass burning smoke will remain brown-colored for a long time and efficiently warm up the atmosphere.
Lam Kam Chan, Khanh Q. Nguyen, Noreen Karim, Yatian Yang, Robert H. Rice, Guochun He, Michael S. Denison, and Tran B. Nguyen
Atmos. Chem. Phys., 20, 539–559, https://doi.org/10.5194/acp-20-539-2020, https://doi.org/10.5194/acp-20-539-2020, 2020
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Aerosols from the low-intensity smoldering combustion of nine types of wood were generated in a controlled laboratory environment and subjected to chemical, physical, and biological and toxicological analysis. These smoldering woodsmoke aerosols have significant biological activity that is comparable to other combustion-derived sources. We describe the molecular composition of the woodsmoke aerosols and find links between specific compounds and aerosol optical–biological properties.
Iida Pullinen, Sebastian Schmitt, Sungah Kang, Mehrnaz Sarrafzadeh, Patrick Schlag, Stefanie Andres, Einhard Kleist, Thomas F. Mentel, Franz Rohrer, Monika Springer, Ralf Tillmann, Jürgen Wildt, Cheng Wu, Defeng Zhao, Andreas Wahner, and Astrid Kiendler-Scharr
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2019-1168, https://doi.org/10.5194/acp-2019-1168, 2020
Revised manuscript accepted for ACP
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Biogenic and anthropogenic air masses mix in the atmosphere bringing plant emitted monoterpenes and traffic related nitrogen oxides together. There is a debate whether the presence of nitrogen oxides reduces or increases secondary aerosol formation. This is important as secondary aerosols have cooling effects in the climate system but also constitute a health risk in populated areas. We show that the presence of NOx alone should not much affect the mass yields of secondary organic aerosols.
Franz Friebel, Prem Lobo, David Neubauer, Ulrike Lohmann, Saskia Drossaart van Dusseldorp, Evelyn Mühlhofer, and Amewu A. Mensah
Atmos. Chem. Phys., 19, 15545–15567, https://doi.org/10.5194/acp-19-15545-2019, https://doi.org/10.5194/acp-19-15545-2019, 2019
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We investigated the change in cloud droplet activity of size-selected soot particles after being exposed to atmospheric levels of ozone over the course of 12 h. For this, we operated a 3 m3 aerosol chamber in continuous-flow mode. The results were fed into a climate model (ECHAM-HAM). We found that the oxidation of soot particles with ozone is a significant source of cloud condensation nuclei in the atmosphere.
Qun Zhang, Yongfu Xu, and Long Jia
Atmos. Chem. Phys., 19, 15007–15021, https://doi.org/10.5194/acp-19-15007-2019, https://doi.org/10.5194/acp-19-15007-2019, 2019
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The negative effects of relative humidity (RH) on secondary organic aerosol (SOA) formation from m-xylene under low NOx conditions were observed. The mechanisms of the RH effects of SOA yields have been sufficiently discussed. The decrease of SOA formation at high RH may be mainly attributed to the suppression of oligomers and the further particle-phase reaction of highly oxygenated organic molecules. The faster wall loss of SOA precursors at higher RH may also influence the SOA yield.
Kei Sato, Yuji Fujitani, Satoshi Inomata, Yu Morino, Kiyoshi Tanabe, Toshihide Hikida, Akio Shimono, Akinori Takami, Akihiro Fushimi, Yoshinori Kondo, Takashi Imamura, Hiroshi Tanimoto, and Seiji Sugata
Atmos. Chem. Phys., 19, 14901–14915, https://doi.org/10.5194/acp-19-14901-2019, https://doi.org/10.5194/acp-19-14901-2019, 2019
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The volatility distributions of secondary organic aerosol (SOA) formed from the photooxidation of 1,3,5-trimethylbenzene were investigated by composition, heating, and dilution measurements. Fresh SOA, formed from 1,3,5-trimethylbenzene, included low-volatility compounds with < 1 μg m–3 saturation concentrations, which are not assumed to exist in fresh SOA particles in the standard volatility basis-set approach. Improvements in the organic aerosol model will be necessary.
Biwu Chu, Yali Wang, Weiwei Yang, Jinzhu Ma, Qingxin Ma, Peng Zhang, Yongchun Liu, and Hong He
Atmos. Chem. Phys., 19, 14777–14790, https://doi.org/10.5194/acp-19-14777-2019, https://doi.org/10.5194/acp-19-14777-2019, 2019
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This study found that the coexisting NO2 and/or C2H2 had significant influences on heterogeneous oxidation of SO2 due to the ubiquitous interactions between organic and inorganic species, and their effects were different under dark conditions or with UV irradiation. The experimental results of this study highlighted the requirement to consider the influence of coexisting organics and other inorganic gases in the heterogeneous oxidation kinetics of SO2.
Adam W. Birdsall, Jack C. Hensley, Paige S. Kotowitz, Andrew J. Huisman, and Frank N. Keutsch
Atmos. Chem. Phys., 19, 14195–14209, https://doi.org/10.5194/acp-19-14195-2019, https://doi.org/10.5194/acp-19-14195-2019, 2019
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We have measured the evaporation rates of butenedial, a four-carbon dialdehyde produced in the atmosphere, from individual levitated particles. Effective vapor pressures and Henry's law constants, which characterize the compound's gas-particle partitioning behavior, were determined. The important role of hydration reactions was observed under both dry and humid conditions, as well as a salting-out effect in the presence of sodium chloride or sodium sulfate.
John G. Watson, Junji Cao, L.-W. Antony Chen, Qiyuan Wang, Jie Tian, Xiaoliang Wang, Steven Gronstal, Steven Sai Hang Ho, Adam C. Watts, and Judith C. Chow
Atmos. Chem. Phys., 19, 14173–14193, https://doi.org/10.5194/acp-19-14173-2019, https://doi.org/10.5194/acp-19-14173-2019, 2019
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Although peat burning is a common global emission source, region-specific emission factors are lacking. This work fills that gap for six peat-bearing regions. It is also shown through simulated aging with an oxidation flow reactor that potential aerosol mass changes during transport.
Min Cui, Cheng Li, Yingjun Chen, Fan Zhang, Jun Li, Bin Jiang, Yangzhi Mo, Jia Li, Caiqing Yan, Mei Zheng, Zhiyong Xie, Gan Zhang, and Junyu Zheng
Atmos. Chem. Phys., 19, 13945–13956, https://doi.org/10.5194/acp-19-13945-2019, https://doi.org/10.5194/acp-19-13945-2019, 2019
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Refined source apportionment is urgently needed but hard to achieve due to a lack of specific biomarkers. Recently, Fourier transform ion cyclotron resonance mass spectrometry has been used to analyse the probable chemical structure of polar organic matter emitted from off-road engines. We found more condensed aromatic rings in S-containing compounds for HFO-fueled vessels, while more abundant aliphatic chains were observed in emissions from diesel equipment.
Isabelle Steinke, Naruki Hiranuma, Roger Funk, Kristina Höhler, Nadine Tüllmann, Nsikanabasi Silas Umo, Peter G. Weidler, Ottmar Möhler, and Thomas Leisner
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2019-869, https://doi.org/10.5194/acp-2019-869, 2019
Revised manuscript accepted for ACP
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In this study, we highlight the potential impact of particles from certain terrestrial sources on the formation of ice crystals in clouds. In particular, we focus on biogenic particles consisting of various organic compounds which makes it very difficult to predict the ice nucleation properties of complex ambient particles. We find that these ambient particles are often more ice-active than individual components.
Christopher Y. Lim, David H. Hagan, Matthew M. Coggon, Abigail R. Koss, Kanako Sekimoto, Joost de Gouw, Carsten Warneke, Christopher D. Cappa, and Jesse H. Kroll
Atmos. Chem. Phys., 19, 12797–12809, https://doi.org/10.5194/acp-19-12797-2019, https://doi.org/10.5194/acp-19-12797-2019, 2019
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Wildfires are a large source of gases and particles to the atmosphere, both of which impact human health and climate. The amount and composition of particles from wildfires can change with time in the atmosphere; however, the impact of aging is not well understood. In a series of controlled laboratory experiments, we show that the particles are oxidized and a significant fraction of the gas-phase carbon (24 %–56 %) is converted to particle mass over the course of several days in the atmosphere.
Masayuki Takeuchi and Nga L. Ng
Atmos. Chem. Phys., 19, 12749–12766, https://doi.org/10.5194/acp-19-12749-2019, https://doi.org/10.5194/acp-19-12749-2019, 2019
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Organic nitrate is ubiquitous in the atmosphere and impacts the formation of aerosol and ozone, two leading air pollutants of concern worldwide. We conducted a comprehensive laboratory study to investigate the hydrolysis process of organic nitrate aerosol formed from monoterpenes, which are important reactive chemicals emitted by plants. Our results provide experimentally constrained parameters required to assess the role of organic nitrate in the formation of the air pollutants of our concern.
Mingjin Tang, Chak K. Chan, Yong Jie Li, Hang Su, Qingxin Ma, Zhijun Wu, Guohua Zhang, Zhe Wang, Maofa Ge, Min Hu, Hong He, and Xinming Wang
Atmos. Chem. Phys., 19, 12631–12686, https://doi.org/10.5194/acp-19-12631-2019, https://doi.org/10.5194/acp-19-12631-2019, 2019
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Hygroscopicity is one of the most important properties of aerosol particles, and a number of experimental techniques, which differ largely in principles, configurations and cost, have been developed to investigate hygroscopic properties of atmospherically relevant particles. Our paper provides a comprehensive and critical review of available techniques for aerosol hygroscopicity studies.
Zhenzhen Wang, Tao Wang, Hongbo Fu, Liwu Zhang, Mingjin Tang, Christian George, Vicki H. Grassian, and Jianmin Chen
Atmos. Chem. Phys., 19, 12569–12585, https://doi.org/10.5194/acp-19-12569-2019, https://doi.org/10.5194/acp-19-12569-2019, 2019
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This study confirmed that SO2 uptake on mineral particles could be greatly enhanced during cloud processing. The large pH fluctuations between the cloud-aerosol modes could significantly modify the microphysical properties of particles, and triggered the formation of reactive Fe particles to accelerate sulfate formation via a self-amplifying process. Results of this study could partly explain the missing source of sulfate and improve agreement between models and field observations.
Nadine Borduas-Dedekind, Rachele Ossola, Robert O. David, Lin S. Boynton, Vera Weichlinger, Zamin A. Kanji, and Kristopher McNeill
Atmos. Chem. Phys., 19, 12397–12412, https://doi.org/10.5194/acp-19-12397-2019, https://doi.org/10.5194/acp-19-12397-2019, 2019
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During atmospheric transport, dissolved organic matter (DOM) within aqueous aerosols undergoes photochemistry. We find that photochemical processing of DOM increases its ability to form cloud droplets but decreases its ability to form ice crystals over a simulated 4.6 days in the atmosphere. A photomineralization mechanism involving the loss of organic carbon and the production of organic acids, CO and CO2 explains the observed changes and affects the liquid-water-to-ice ratio in clouds.
Alex K. Y. Lee, Max G. Adam, John Liggio, Shao-Meng Li, Kun Li, Megan D. Willis, Jonathan P. D. Abbatt, Travis W. Tokarek, Charles A. Odame-Ankrah, Hans D. Osthoff, Kevin Strawbridge, and Jeffery R. Brook
Atmos. Chem. Phys., 19, 12209–12219, https://doi.org/10.5194/acp-19-12209-2019, https://doi.org/10.5194/acp-19-12209-2019, 2019
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This work provides the first direct field evidence that anthropogenic organo-nitrate contributed up to half of secondary organic aerosol (SOA) mass that was freshly produced within the emission plumes of oil sands facilities in Alberta, Canada. The findings illustrate the central role of organo-nitrate in SOA production from the oil and gas industry, with relevance for other urban and industrial regions with significant intermediate-volatility organic compounds (IVOCs) and NOx emissions.
Giulia Stefenelli, Jianhui Jiang, Amelie Bertrand, Emily A. Bruns, Simone M. Pieber, Urs Baltensperger, Nicolas Marchand, Sebnem Aksoyoglu, André S. H. Prévôt, Jay G. Slowik, and Imad El Haddad
Atmos. Chem. Phys., 19, 11461–11484, https://doi.org/10.5194/acp-19-11461-2019, https://doi.org/10.5194/acp-19-11461-2019, 2019
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Box model simulations, based on the volatility basis set approach, of smog chamber wood combustion experiments conducted at different temperatures (−10 °C, 2 °C, 15 °C), emission loads, combustion conditions (flaming and smoldering) and residential stoves fabricated in the last 2 decades. Novel parameterization methods based on a genetic algorithm approach allowed estimation of precursor class contributions to SOA and evaluation of the effect of emission variability on SOA yield predictions.
Pablo Corral Arroyo, Raffael Aellig, Peter A. Alpert, Rainer Volkamer, and Markus Ammann
Atmos. Chem. Phys., 19, 10817–10828, https://doi.org/10.5194/acp-19-10817-2019, https://doi.org/10.5194/acp-19-10817-2019, 2019
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Oxidation of bromide and iodide is an important process in the troposphere that leads to gas-phase halogen compounds which impact the oxidation capacity of the atmosphere. Imidazole-2-carboxaldehyde (IC), an aromatic carbonyl, is a product of the multiphase chemistry of glyoxal (an oxidation product of isoprene), a major biogenic volatile organic compound. In this study we demonstrate that IC photochemistry leads to efficient oxidation of bromide and iodide and liberation of halogen compounds.
Erin Evoy, Adrian M. Maclean, Grazia Rovelli, Ying Li, Alexandra P. Tsimpidi, Vlassis A. Karydis, Saeid Kamal, Jos Lelieveld, Manabu Shiraiwa, Jonathan P. Reid, and Allan K. Bertram
Atmos. Chem. Phys., 19, 10073–10085, https://doi.org/10.5194/acp-19-10073-2019, https://doi.org/10.5194/acp-19-10073-2019, 2019
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We measured the diffusion rates of organic molecules in a number of proxies for secondary organic aerosol (SOA) and compared measured diffusion with predictions from two relations: the Stokes–Einstein relation and a fractional Stokes–Einstein relation. The fractional relation does a better job of predicting diffusion rates in this case. Output from an atmospheric model shows that mixing times predicted using the two relations differ by up to 1 order of magnitude at an altitude of ~ 3 km.
Siyang Li, Xiaotong Jiang, Marie Roveretto, Christian George, Ling Liu, Wei Jiang, Qingzhu Zhang, Wenxing Wang, Maofa Ge, and Lin Du
Atmos. Chem. Phys., 19, 9887–9902, https://doi.org/10.5194/acp-19-9887-2019, https://doi.org/10.5194/acp-19-9887-2019, 2019
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We stimulated the photochemical aging of organic film coated on aqueous aerosol in the presence of imidazole-2-carboxaldehyde, humic acid, an atmospheric PM2.5 sample, and a secondary organic aerosol sample from the lab. The unsaturated lipid mixed with photosensitizer under UV irradiation produced hydroperoxides, leading to surface area increase in organic film. Our results reveal the modification of organic film on aqueous aerosol has potential influence on the hygroscopic growth of droplets.
Kun Li, John Liggio, Patrick Lee, Chong Han, Qifan Liu, and Shao-Meng Li
Atmos. Chem. Phys., 19, 9715–9731, https://doi.org/10.5194/acp-19-9715-2019, https://doi.org/10.5194/acp-19-9715-2019, 2019
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A new oxidation flow reactor was developed and applied to study the secondary organic aerosol (SOA) formation from precursors associated with oil-sands (OS) operations. The results reveal that the SOA yields from OS precursors are related to the volatilities of precursors and that open-pit mining is the main source of SOA formed from oil sands. In addition, cyclic alkanes are found to play an important role in SOA formation from oil-sands precursors.
Hoi Ki Lam, Sze Man Shum, James F. Davies, Mijung Song, Andreas Zuend, and Man Nin Chan
Atmos. Chem. Phys., 19, 9581–9593, https://doi.org/10.5194/acp-19-9581-2019, https://doi.org/10.5194/acp-19-9581-2019, 2019
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We show the presence of dissolved inorganic salts could reduce the overall heterogeneous reactivity of organic compounds with gas–phase OH radicals at the surface by lowering the surface concentration of organic compounds. Until recently, the kinetic parameters reported in the literature were mostly measured based on experiments with pure organic particles. The lifetime of organic compounds or chemical tracers against heterogeneous OH reaction in the atmosphere could be longer than expected.
Suhan Ham, Zaeem Bin Babar, Jae Bong Lee, Ho-Jin Lim, and Mijung Song
Atmos. Chem. Phys., 19, 9321–9331, https://doi.org/10.5194/acp-19-9321-2019, https://doi.org/10.5194/acp-19-9321-2019, 2019
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We investigated LLPS in four different types of SOA particles generated from α-pinene ozonolysis and α-pinene photooxidation in the absence and presence of NH3. LLPS was observed in SOA particles produced from α-pinene ozonolysis at ~ 95.8 % RH and α-pinene ozonolysis with NH3 at ~ 95.4 % RH. However, LLPS was not observed in SOA particles produced from α-pinene photooxidation and α-pinene photooxidation with NH3. This result can help to more accurately predict the CCN properties of OA particles.
David R. Hanson, Hussein Abdullahi, Seakh Menheer, Joaquin Vences, Michael R. Alves, and Joan Kunz
Atmos. Chem. Phys., 19, 8999–9015, https://doi.org/10.5194/acp-19-8999-2019, https://doi.org/10.5194/acp-19-8999-2019, 2019
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Particle formation was studied in a flow reactor with photolytic generation of sulfuric acid. Comparisons with previous results are a mixed bag with plenty of outliers. Addition of bases (dimethylamine and ammonia) led to large increases in particle numbers. Model simulations suggest that previous dimethylamine–sulfuric acid cluster thermodynamics are good, while a new set of the free energies of ammonia–sulfuric acid clusters was needed.
Lee Tiszenkel, Chris Stangl, Justin Krasnomowitz, Qi Ouyang, Huan Yu, Michael J. Apsokardu, Murray V. Johnston, and Shan-Hu Lee
Atmos. Chem. Phys., 19, 8915–8929, https://doi.org/10.5194/acp-19-8915-2019, https://doi.org/10.5194/acp-19-8915-2019, 2019
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Understanding the processes surrounding the formation and growth of atmospheric aerosol particles is essential for understanding their effects on air quality, human health and cloud formation. Current atmospheric models neglect many essential variables that influence these processes. This study investigates temperature effects on new particle formation and the formation of clusters and their subsequent growth in differing temperature conditions.
Nishit J. Shetty, Apoorva Pandey, Stephen Baker, Wei Min Hao, and Rajan K. Chakrabarty
Atmos. Chem. Phys., 19, 8817–8830, https://doi.org/10.5194/acp-19-8817-2019, https://doi.org/10.5194/acp-19-8817-2019, 2019
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We investigated biases in particle-phase absorption coefficients for organic aerosol from bulk-phase absorbance measurements of solvent extracts in the visible spectrum. These biases were systematically studied as a function of organic-to-total carbon mass ratios and aerosol single scattering albedo. A linear correlation between SSA and OC / TC ratios was observed. Differences in the absorption Ångström exponents from bulk- and particle-phase measurements were also investigated.
Cited articles
Abdelmonem, A.: Direct molecular-level characterization of different heterogeneous freezing modes on mica – Part 1, Atmos. Chem. Phys., 17, 10733–10741, https://doi.org/10.5194/acp-17-10733-2017, 2017.
Abdelmonem, A., Lützenkirchen, J., and Leisner, T.: Probing ice-nucleation processes on the molecular level using second harmonic generation spectroscopy, Atmos. Meas. Tech., 8, 3519–3526, https://doi.org/10.5194/amt-8-3519-2015, 2015.
Abdelmonem, A., Backus, E. H. G., Hoffmann, N., Sánchez, M. A., Cyran, J. D., Kiselev, A., and Bonn, M.: Surface-charge-induced orientation of interfacial water suppresses heterogeneous ice nucleation on α-alumina (0001), Atmos. Chem. Phys., 17, 7827–7837, https://doi.org/10.5194/acp-17-7827-2017, 2017.
Abdelmonem, A., Backus, E. H. G., and Bonn, M.: Ice Nucleation at the
Water–Sapphire Interface: Transient Sum-Frequency Response without Evidence
for Transient Ice Phase, J. Phys. Chem. C, 122, 24760–24764, https://doi.org/10.1021/acs.jpcc.8b07480,
2018.
Abdelmonem, A., Ratnayake, S., and Lützenkirchen, J.: Melting_Peak-Hump.avi, Figshare, https://doi.org/10.6084/m9.figshare.9878369.v1, 2019.
Anim-Danso, E., Zhang, Y., Alizadeh, A., and Dhinojwala, A.: Freezing of
Water Next to Solid Surfaces Probed by Infrared-Visible Sum Frequency
Generation Spectroscopy, J. Am. Chem. Soc., 135, 2734–2740, https://doi.org/10.1021/ja311648q, 2013.
Anim-Danso, E., Zhang, Y., and Dhinojwala, A.: Surface Charge Affects the
Structure of Interfacial Ice, J. Phys. Chem. C, 120, 3741–3748, https://doi.org/10.1021/acs.jpcc.5b08371, 2016.
Azam, M. S., Weeraman, C. N., and Gibbs-Davis, J. M.: Specific Cation
Effects on the Bimodal Acid–Base Behavior of the Silica/Water Interface, J.
Phys. Chem. Lett., 3, 1269–1274, https://doi.org/10.1021/jz300255x, 2012.
Azam, M. S., Weeraman, C. N., and Gibbs-Davis, J. M.: Halide-Induced
Cooperative Acid–Base Behavior at a Negatively Charged Interface, J. Phys.
Chem. C, 117, 8840–8850, https://doi.org/10.1021/jp401164r, 2013.
Bandura, A. V. and Lvov, S. N.: The Ionization Constant of Water over Wide
Ranges of Temperature and Density, J. Phys. Chem. Ref. Data, 35, 15–30, https://doi.org/10.1063/1.1928231, 2006.
Bergna, H. E. and Roberts, W. O.: Colloidal Silica: Fundamentals and
Applications, Surfactant Science, CRC Press, Boca Raton, 2005.
Boamah, M. D., Ohno, P. E., Geiger, F. M., and Eisenthal, K. B.: Relative
permittivity in the electrical double layer from nonlinear optics, J. Chem.
Phys., 148, 222808, https://doi.org/10.1063/1.5011977, 2018.
Brown, M. A., Goel, A., and Abbas, Z.: Effect of Electrolyte Concentration
on the Stern Layer Thickness at a Charged Interface, Angew. Chem. Int. Edit.,
55, 3790–3794, https://doi.org/10.1002/anie.201512025, 2016.
Coluzza, I., Creamean, J., Rossi, M. J., Wex, H., Alpert, P. A., Bianco, V.,
Boose, Y., Dellago, C., Felgitsch, L., Frohlich-Nowoisky, J., Herrmann, H.,
Jungblut, S., Kanji, Z. A., Menzl, G., Moffett, B., Moritz, C., Mutzel, A.,
Poschl, U., Schauperl, M., Scheel, J., Stopelli, E., Stratmann, F., Grothe,
H., and Schmale, D. G.: Perspectives on the Future of Ice Nucleation
Research: Research Needs and Unanswered Questions Identified from Two
International Workshops, Atmosphere, 8, 138, https://doi.org/10.3390/atmos8080138, 2017.
Cox, J. R., Ferris, L. A., and Thalladi, V. R.: Selective Growth of a Stable
Drug Polymorph by Suppressing the Nucleation of Corresponding Metastable
Polymorphs, Angew. Chem. Int. Edit., 46, 4333–4336, https://doi.org/10.1002/anie.200605257, 2007.
Cox, S. J., Raza, Z., Kathmann, S. M., Slater, B., and Michaelides, A.: The
microscopic features of heterogeneous ice nucleation may affect the
macroscopic morphology of atmospheric ice crystals, Faraday Discuss., 167,
389–403, https://doi.org/10.1039/c3fd00059a, 2013.
Dalstein, L., Potapova, E., and Tyrode, E.: The elusive silica/water
interface: isolated silanols under water as revealed by vibrational sum
frequency spectroscopy, Phys. Chem. Chem. Phys., 19, 10343–10349, https://doi.org/10.1039/c7cp01507k, 2017.
Darlington, A. M., Jarisz, T. A., DeWalt-Kerian, E. L., Roy, S., Kim, S.,
Azam, M. S., Hore, D. K., and Gibbs, J. M.: Separating the pH-Dependent
Behavior of Water in the Stern and Diffuse Layers with Varying Salt
Concentration, J. Phys. Chem. C, 121, 20229–20241, https://doi.org/10.1021/acs.jpcc.7b03522, 2017.
DeWalt-Kerian, E. L., Kim, S., Azam, M. S., Zeng, H., Liu, Q., and Gibbs, J.
M.: pH-Dependent Inversion of Hofmeister Trends in the Water Structure of
the Electrical Double Layer, J. Phys. Chem. Lett., 8, 2855–2861, https://doi.org/10.1021/acs.jpclett.7b01005, 2017.
Döppenschmidt, A., Kappl, M., and Butt, H.-J.: Surface Properties of Ice
Studied by Atomic Force Microscopy, J. Phys. Chem. B, 102, 7813–7819, https://doi.org/10.1021/jp981396s, 1998.
Dove, P. M. and Craven, C. M.: Surface charge density on silica in alkali
and alkaline earth chloride electrolyte solutions, Geochim. Cosmochim. Ac.,
69, 4963–4970, https://doi.org/10.1016/j.gca.2005.05.006, 2005.
Fordyce, A. J., Bullock, W. J., Timson, A. J., Haslam, S., Spencer-Smith, R.
D., Alexander, A., and Frey, J. G.: The temperature dependence of surface
second-harmonic generation from the air-water interface, Mol. Phys., 99,
677–687, https://doi.org/10.1080/00268970010030022, 2001.
Gibbs-Davis, J. M., Kruk, J. J., Konek, C. T., Scheidt, K. A., and Geiger,
F. M.: Jammed Acid-Base Reactions at Interfaces, J. Am. Chem. Soc., 130,
15444–15447, https://doi.org/10.1021/ja804302s, 2008.
Goh, M. C., Hicks, J. M., Kemnitz, K., Pinto, G. R., Heinz, T. F.,
Eisenthal, K. B., and Bhattacharyya, K.: Absolute orientation of water
molecules at the neat water surface, J. Phys. Chem., 92, 5074–5075, https://doi.org/10.1021/j100329a003, 1988.
Harrison, A. D., Whale, T. F., Carpenter, M. A., Holden, M. A., Neve, L., O'Sullivan, D., Vergara Temprado, J., and Murray, B. J.: Not all feldspars are equal: a survey of ice nucleating properties across the feldspar group of minerals, Atmos. Chem. Phys., 16, 10927–10940, https://doi.org/10.5194/acp-16-10927-2016, 2016.
Hiemstra, T. and van Riemsdijk, W. H.: Multiple activated complex
dissolution of metal (hydr) oxides: A thermodynamic approach applied to
quartz, J. Colloid Interf. Sci., 136, 132–150, https://doi.org/10.1016/0021-9797(90)90084-2, 1990.
Holden, M. A., Whale, T. F., Tarn, M. D., O'Sullivan, D., Walshaw, R. D.,
Murray, B. J., Meldrum, F. C., and Christenson, H. K.: High-speed imaging of
ice nucleation in water proves the existence of active sites, Sci. Adv., 5,
eaav4316, https://doi.org/10.1126/sciadv.aav4316, 2019.
Hoose, C. and Möhler, O.: Heterogeneous ice nucleation on atmospheric aerosols: a review of results from laboratory experiments, Atmos. Chem. Phys., 12, 9817–9854, https://doi.org/10.5194/acp-12-9817-2012, 2012.
Iler, R. K.: The Chemistry of Silica: Solubility, Polymerization, Colloid
and Surface Properties and Biochemistry of Silica, John Wiley & Sons Inc.,
New York, 1979.
Jang, J. H., Lydiatt, F., Lindsay, R., and Baldelli, S.: Quantitative
Orientation Analysis by Sum Frequency Generation in the Presence of
Near-Resonant Background Signal: Acetonitrile on Rutile TiO2 (110), J. Phys.
Chem. A, 117, 6288–6302, https://doi.org/10.1021/jp401019p, 2013.
Jena, K. C. and Hore, D. K.: Variation of Ionic Strength Reveals the
Interfacial Water Structure at a Charged Mineral Surface, J. Phys. Chem. C,
113, 15364–15372, https://doi.org/10.1021/jp905475m, 2009.
Jena, K. C., Covert, P. A., and Hore, D. K.: The Effect of Salt on the Water
Structure at a Charged Solid Surface: Differentiating Second- and
Third-order Nonlinear Contributions, J. Phys. Chem. Lett., 2, 1056–1061,
https://doi.org/10.1021/jz200251h, 2011.
Karlsson, M., Craven, C., Dove, P. M., and Casey, W. H.: Surface Charge
Concentrations on Silica in Different 1.0 M Metal-Chloride Background
Electrolytes and Implications for Dissolution Rates, Aquat. Geochem., 7,
13–32, https://doi.org/10.1023/a:1011377400253, 2001.
Kiselev, A., Bachmann, F., Pedevilla, P., Cox, S. J., Michaelides, A.,
Gerthsen, D., and Leisner, T.: Active sites in heterogeneous ice
nucleation – the example of K-rich feldspars, Science, 355, 367–371, https://doi.org/10.1126/science.aai8034, 2017.
Li, Y. and Somorjai, G. A.: Surface Premelting of Ice, J. Phys. Chem. C,
111, 9631–9637, https://doi.org/10.1021/jp071102f, 2007.
Lis, D., Backus, E. H. G., Hunger, J., Parekh, S. H., and Bonn, M.: Liquid
flow along a solid surface reversibly alters interfacial chemistry, Science,
344, 1138–1142, https://doi.org/10.1126/science.1253793, 2014.
Lovering, K. A., Bertram, A. K., and Chou, K. C.: Transient Phase of Ice
Observed by Sum Frequency Generation at the Water/Mineral Interface During
Freezing, J. Phys. Chem. Lett., 8, 871–875, https://doi.org/10.1021/acs.jpclett.6b02920, 2017.
Luca, A. A. T., Hebert, P., Brevet, P. F., and Girault, H. H.: Surface
second-harmonic generation at air/solvent and solvent/solvent interfaces, J.
Chem. Soc. Faraday T., 91, 1763–1768, https://doi.org/10.1039/ft9959101763, 1995.
Lützenkirchen, J. and Behra, P.: On the surface precipitation model for
cation sorption at the (hydr)oxide water interface, Aquat. Geochem., 1,
375–397, https://doi.org/10.1007/bf00702740, 1995.
Morag, J., Dishon, M., and Sivan, U.: The Governing Role of Surface
Hydration in Ion Specific Adsorption to Silica: An AFM-Based Account of the
Hofmeister Universality and Its Reversal, Langmuir, 29, 6317–6322, https://doi.org/10.1021/la400507n, 2013.
Nagata, Y., Hama, T., Backus, E. H. G., Mezger, M., Bonn, D., Bonn, M., and
Sazaki, G.: The Surface of Ice under Equilibrium and Nonequilibrium
Conditions, Accounts Chem. Res., 52, 1006–1015, https://doi.org/10.1021/acs.accounts.8b00615, 2019.
Ohno, P. E., Saslow, S. A., Wang, H.-F., Geiger, F. M., and Eisenthal, K.
B.: Phase-referenced nonlinear spectroscopy of the α-quartz/water
interface, Nat. Commun., 7, 13587, https://doi.org/10.1038/ncomms13587, 2016.
Ong, S., Zhao, X., and Eisenthal, K. B.: Polarization of water molecules at
a charged interface: second harmonic studies of the silica/water interface,
Chem. Phys. Lett., 191, 327–335, https://doi.org/10.1016/0009-2614(92)85309-X, 1992.
Ostroverkhov, V., Waychunas, G. A., and Shen, Y. R.: Vibrational spectra of
water at water/α-quartz (0 0 0 1) interface, Chem. Phys. Lett., 386,
144–148, https://doi.org/10.1016/j.cplett.2004.01.047, 2004.
Ostroverkhov, V., Waychunas, G. A., and Shen, Y. R.: New Information on
Water Interfacial Structure Revealed by Phase-Sensitive Surface
Spectroscopy, Phys. Rev. Lett., 94, 046102, https://doi.org/10.1103/PhysRevLett.94.046102, 2005.
Parambil, J. V., Poornachary, S. K., Tan, R. B. H., and Heng, J. Y. Y.:
Template-induced polymorphic selectivity: the effects of surface chemistry
and solute concentration on carbamazepine crystallisation, Cryst. Eng. Comm., 16,
4927–4930, https://doi.org/10.1039/c3ce42622j, 2014.
Rao, Y., Tao, Y.-S., and Wang, H.-F.: Quantitative analysis of orientational
order in the molecular monolayer by surface second harmonic generation, J.
Chem. Phys., 119, 5226–5236, https://doi.org/10.1063/1.1597195, 2003.
Rehl, B., Rashwan, M., DeWalt-Kerian, E. L., Jarisz, T. A., Darlington, A.
M., Hore, D. K., and Gibbs, J. M.: New Insights into χ(3)
Measurements: Comparing Nonresonant Second Harmonic Generation and Resonant
Sum Frequency Generation at the Silica/Aqueous Electrolyte Interface, J.
Phys. Chem. C, 123, 10991–11000, https://doi.org/10.1021/acs.jpcc.9b01300, 2019.
Rosenberg, R.: Why Is Ice Slippery?, Phys. Today, 5, 50–55, https://doi.org/10.1063/1.2169444, 2005.
Schaefer, J., Gonella, G., Bonn, M., and Backus, E. H. G.: Surface-specific
vibrational spectroscopy of the water/silica interface: screening and
interference, Phys. Chem. Chem. Phys., 19, 16875–16880, https://doi.org/10.1039/c7cp02251d, 2017.
Schaefer, J., Backus, E. H. G., and Bonn, M.: Evidence for auto-catalytic
mineral dissolution from surface-specific vibrational spectroscopy, Nat.
Commun., 9, 3316, https://doi.org/10.1038/s41467-018-05762-9, 2018.
Schrader, A. M., Monroe, J. I., Sheil, R., Dobbs, H. A., Keller, T. J., Li,
Y., Jain, S., Shell, M. S., Israelachvili, J. N., and Han, S.: Surface
chemical heterogeneity modulates silica surface hydration, P. Natl. Acad.
Sci. USA, 115, 2890–2895, https://doi.org/10.1073/pnas.1722263115, 2018.
Seidel, A., Löbbus, M., Vogelsberger, W., and Sonnefeld, J.: The
kinetics of dissolution of silica “Monospher” into water at different
concentrations of background electrolyte, Solid State Ionics, 101–103,
713–719, https://doi.org/10.1016/S0167-2738(97)00289-0, 1997.
Shen, Y. R.: Optical Second Harmonic Generation at Interfaces, Annu. Rev.
Phys. Chem., 40, 327–350, https://doi.org/10.1146/annurev.pc.40.100189.001551, 1989.
Sosso, G. C., Chen, J., Cox, S. J., Fitzner, M., Pedevilla, P., Zen, A., and
Michaelides, A.: Crystal Nucleation in Liquids: Open Questions and Future
Challenges in Molecular Dynamics Simulations, Chem. Rev., 116, 7078–7116,
https://doi.org/10.1021/acs.chemrev.5b00744, 2016.
Steiner, A. L., Mermelstein, D., Cheng, S. J., Twine, T. E., and Oliphant,
A.: Observed Impact of Atmospheric Aerosols on the Surface Energy Budget,
Earth Interact., 17, 1–22, https://doi.org/10.1175/2013ei000523.1, 2013.
Wang, B., Knopf, D. A., China, S., Arey, B. W., Harder, T. H., Gilles, M.
K., and Laskin, A.: Direct observation of ice nucleation events on
individual atmospheric particles, Phys. Chem. Chem. Phys., 18, 29721–29731,
https://doi.org/10.1039/c6cp05253c, 2016.
Whale, T. F., Holden, M. A., Wilson, T. W., O'Sullivan, D., and
Murray, B. J.: The enhancement and suppression of immersion mode
heterogeneous ice-nucleation by solutes, Chem. Sci., 9, 4142–4151, https://doi.org/10.1039/c7sc05421a, 2018.
Yang, Z., Bertram, A. K., and Chou, K. C.: Why Do Sulfuric Acid Coatings
Influence the Ice Nucleation Properties of Mineral Dust Particles in the
Atmosphere?, J. Phys. Chem. Lett., 2, 1232–1236, https://doi.org/10.1021/jz2003342,
2011.
Zhao, X., Ong, S., and Eisenthal, K. B.: Polarization of water molecules at
a charged interface. Second harmonic studies of charged monolayers at the
air/water interface, Chem. Phys. Lett., 202, 513–520, https://doi.org/10.1016/0009-2614(93)90041-X, 1993.
Zhuang, X., Miranda, P. B., Kim, D., and Shen, Y. R.: Mapping Molecular
Orientation and Conformation at Interfaces by Surface Nonlinear Optics,
Phys. Rev. B, 59, 12632–12640, https://doi.org/10.1103/PhysRevB.59.12632, 1999.
Zipori, A., Reicher, N., Erel, Y., Rosenfeld, D., Sandler, A., Knopf, D. A.,
and Rudich, Y.: The Role of Secondary Ice Processes in Midlatitude
Continental Clouds, J. Geophys. Res.-Atmos., 123, 12762–12777, https://doi.org/10.1029/2018jd029146, 2018.
Zobrist, B., Marcolli, C., Peter, T., and Koop, T.: Heterogeneous Ice
Nucleation in Aqueous Solutions:? the Role of Water Activity, J. Phys. Chem.
A, 112, 3965–3975, https://doi.org/10.1021/jp7112208, 2008.
Zumdahl, S. S.: Chemistry, 3rd Edn., DC Heath Canada, Lexington, MA, USA, 1123 pp., 1993.
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Short summary
We address, on the molecular level, the potential for, and consequences of, surface property variations in aerosol particles in the atmosphere. Aerosol surface aging changes the interfacial chemistry, giving rise to marked variations in the ice nucleation ability of the surface. This study provides new insights into atmospheric processes, particularly cloud formation and aerosol aging in the atmosphere, with potential implications for the pharmaceutical and food industries.
We address, on the molecular level, the potential for, and consequences of, surface property...
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