Articles | Volume 20, issue 2
https://doi.org/10.5194/acp-20-1075-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
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.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Jan 2020
Research article |
| 27 Jan 2020
| 27 Jan 2020
Cloud history can change water–ice–surface interactions of oxide mineral aerosols: a case study on silica
Ahmed Abdelmonem
CORRESPONDING AUTHOR
Institute of Meteorology and Climate Research – Atmospheric Aerosol
Research (IMKAAF), Karlsruhe Institute of Technology (KIT), 76344
Eggenstein-Leopoldshafen, Germany
Sanduni Ratnayake
Institute of Nuclear Waste Disposal (INE), Karlsruhe Institute of
Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
Jonathan D. Toner
Department of Earth and Space Sciences, University of Washington,
Seattle, WA 98195, USA
Johannes Lützenkirchen
Institute of Nuclear Waste Disposal (INE), Karlsruhe Institute of
Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
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Ramakrishna Ramisetty, Ahmed Abdelmonem, Xiaoli Shen, Harald Saathoff, Thomas Leisner, and Claudia Mohr
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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
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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.
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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
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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
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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
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A. Abdelmonem, J. Lützenkirchen, and T. Leisner
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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).
Jessica Lessing, Julia Neumann, Frank Bok, Johannes Lützenkirchen, Vinzenz Brendler, Moritz Schmidt, and Thorsten Stumpf
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The immobilization of trivalent actinides (Am, Cm) and their less toxic homologue (Eu) in feldspar, a very common mineral in our earth crust, was studied by sorption experiments and spectroscopic studies. The speciation was identified and used to gain thermodynamic parameters to develop a surface complexation model. To sum up, feldspar, a main component of crystalline rock, is suitable for retaining radionuclides in a deep radioactive waste repository.
Ramakrishna Ramisetty, Ahmed Abdelmonem, Xiaoli Shen, Harald Saathoff, Thomas Leisner, and Claudia Mohr
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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
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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
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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
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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)
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PM2.5 are air pollutants threatening health globally, but they are a mixture of chemical compositions from many sources and result in unequal toxicity. Which composition from which source of PM2.5 as the most hazardous object is a question hindering effective pollution control policy-making. With chemical and toxicity experiments, we found automobile exhaust and coal combustion to be priority emissions with higher toxic compositions for precise air pollution control, ensuring public health.
Matthew B. Goss and Jesse H. Kroll
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The chemistry driving dimethyl sulfide (DMS) oxidation and subsequent sulfate particle formation in the atmosphere is poorly constrained. We oxidized two related compounds (dimethyl sulfoxide and dimethyl disulfide) in the laboratory under varied NOx conditions and measured the gas- and particle-phase products. These results demonstrate that both the OH addition and OH abstraction pathways for DMS oxidation contribute to particle formation via mechanisms that do not involve the SO2 intermediate.
Ryan J. Patnaude, Kathryn A. Moore, Russell J. Perkins, Thomas C. J. Hill, Paul J. DeMott, and Sonia M. Kreidenweis
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Adolfo González-Romero, Cristina González-Flórez, Agnesh Panta, Jesús Yus-Díez, Patricia Córdoba, Andres Alastuey, Natalia Moreno, Konrad Kandler, Martina Klose, Roger N. Clark, Bethany L. Ehlmann, Rebecca N. Greenberger, Abigail M. Keebler, Phil Brodrick, Robert O. Green, Xavier Querol, and Carlos Pérez García-Pando
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This article reports the results of the kinetic measurements for the aqueous oxidation of the 29 aliphatic alcohols by hydroxyl radical (OH) at different temperatures. The data acquired and the literature data were used to optimize a model for predicting the aqueous OH reactivity of alcohols and carboxylic acids and to estimate the atmospheric lifetimes of five terpenoic alcohols. The kinetic data provided new insights into the mechanism of aqueous oxidation of aliphatic molecules by the OH.
Junting Qiu, Xinlin Shen, Jiangyao Chen, Guiying Li, and Taicheng An
Atmos. Chem. Phys., 24, 155–166, https://doi.org/10.5194/acp-24-155-2024, https://doi.org/10.5194/acp-24-155-2024, 2024
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We studied reactions of secondary ozonides (SOZs) with amines. SOZs formed from ozonolysis of β-caryophyllene and α-humulene are found to be reactive to ethylamine and methylamine. Products from SOZs with various conformations reacting with the same amine had different functional groups. Our findings indicate that interaction of SOZs with amines in the atmosphere is very complicated, which is potentially a hitherto unrecognized source of N-containing compound formation.
Lan Ma, Reed Worland, Laura Heinlein, Chrystal Guzman, Wenqing Jiang, Christopher Niedek, Keith J. Bein, Qi Zhang, and Cort Anastasio
Atmos. Chem. Phys., 24, 1–21, https://doi.org/10.5194/acp-24-1-2024, https://doi.org/10.5194/acp-24-1-2024, 2024
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We measured concentrations of three photooxidants – the hydroxyl radical, triplet excited states of organic carbon, and singlet molecular oxygen – in fine particles collected over a year. Concentrations are highest in extracts of fresh biomass burning particles, largely because they have the highest particle concentrations and highest light absorption. When normalized by light absorption, rates of formation for each oxidant are generally similar for the four particle types we observed.
Adolfo González-Romero, Cristina González-Flórez, Agnesh Panta, Jesús Yus-Díez, Cristina Reche, Patricia Córdoba, Natalia Moreno, Andres Alastuey, Konrad Kandler, Martina Klose, Clarissa Baldo, Roger N. Clark, Zongbo Shi, Xavier Querol, and Carlos Pérez García-Pando
Atmos. Chem. Phys., 23, 15815–15834, https://doi.org/10.5194/acp-23-15815-2023, https://doi.org/10.5194/acp-23-15815-2023, 2023
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The effect of dust emitted from desertic surfaces upon climate and ecosystems depends on size and mineralogy, but data from soil mineral atlases of desert soils are scarce. We performed particle-size distribution, mineralogy, and Fe speciation in southern Morocco. Results show coarser particles with high quartz proportion are near the elevated areas, while in depressed areas, sizes are finer, and proportions of clays and nano-Fe oxides are higher. This difference is important for dust modelling.
Victor Lannuque, Barbara D'Anna, Evangelia Kostenidou, Florian Couvidat, Alvaro Martinez-Valiente, Philipp Eichler, Armin Wisthaler, Markus Müller, Brice Temime-Roussel, Richard Valorso, and Karine Sartelet
Atmos. Chem. Phys., 23, 15537–15560, https://doi.org/10.5194/acp-23-15537-2023, https://doi.org/10.5194/acp-23-15537-2023, 2023
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Large uncertainties remain in understanding secondary organic aerosol (SOA) formation from toluene oxidation. In this study, speciation measurements in gaseous and particulate phases were carried out, providing partitioning and volatility data on individual toluene SOA components at different temperatures. A new detailed oxidation mechanism was developed to improve modeled speciation, and effects of different processes involved in gas–particle partitioning at the molecular scale are explored.
Xiaoliang Wang, Hatef Firouzkouhi, Judith C. Chow, John G. Watson, Steven Sai Hang Ho, Warren Carter, and Alexandra S. M. De Vos
Atmos. Chem. Phys., 23, 15375–15393, https://doi.org/10.5194/acp-23-15375-2023, https://doi.org/10.5194/acp-23-15375-2023, 2023
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Open burning of municipal solid waste emits chemicals that are harmful to the environment. This paper reports source profiles and emission factors for PM2.5 species and acidic/alkali gases from laboratory combustion of 10 waste categories (including plastics and biomass) that represent open burning in South Africa. Results will be useful for health and climate impact assessments, speciated emission inventories, source-oriented dispersion models, and receptor-based source apportionment.
Wenli Liu, Longkun He, Yingjun Liu, Keren Liao, Qi Chen, and Mikinori Kuwata
EGUsphere, https://doi.org/10.5194/egusphere-2023-2657, https://doi.org/10.5194/egusphere-2023-2657, 2023
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Cooking is one of the major particle sources in urban areas. Previous laboratory studies demonstrated the chemical lifetimes of cooking organic aerosols were much shorter (~minutes) than the values reported by field observations (~hours). We conducted laboratory experiments to resolve the discrepancy by considering suppressed reactivity under low temperature. The parameterized k2-T relationships and observed surface temperature data were used to estimate the chemical lifetimes of COA particles.
Jun Zhang, Kun Li, Tiantian Wang, Erlend Gammelsæter, Rico K. Y. Cheung, Mihnea Surdu, Sophie Bogler, Deepika Bhattu, Dongyu S. Wang, Tianqu Cui, Lu Qi, Houssni Lamkaddam, Imad El Haddad, Jay G. Slowik, Andre S. H. Prevot, and David M. Bell
Atmos. Chem. Phys., 23, 14561–14576, https://doi.org/10.5194/acp-23-14561-2023, https://doi.org/10.5194/acp-23-14561-2023, 2023
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We conducted burning experiments to simulate various types of solid fuel combustion, including residential burning, wildfires, agricultural burning, cow dung, and plastic bag burning. The chemical composition of the particles was characterized using mass spectrometers, and new potential markers for different fuels were identified using statistical analysis. This work improves our understanding of emissions from solid fuel burning and offers support for refined source apportionment.
Hyun Gu Kang, Yanfang Chen, Yoojin Park, Thomas Berkemeier, and Hwajin Kim
Atmos. Chem. Phys., 23, 14307–14323, https://doi.org/10.5194/acp-23-14307-2023, https://doi.org/10.5194/acp-23-14307-2023, 2023
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D5 is an emerging anthropogenic pollutant that is ubiquitous in indoor and urban environments, and the OH oxidation of D5 forms secondary organosiloxane aerosol (SOSiA). Application of a kinetic box model that uses a volatility basis set (VBS) showed that consideration of oxidative aging (aging-VBS) predicts SOSiA formation much better than using a standard-VBS model. Ageing-dependent parameterization is needed to accurately model SOSiA to assess the implications of siloxanes for air quality.
Lu Zhang, Jin Li, Yaojie Li, Xinlei Liu, Zhihan Luo, Guofeng Shen, and Shu Tao
EGUsphere, https://doi.org/10.5194/egusphere-2023-2417, https://doi.org/10.5194/egusphere-2023-2417, 2023
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Brown Carbon (BrC) is related to radiative forcing and climate change. The BrC fraction from residential coal and biomass burning emissions which was the major source of BrC were characterized at the molecular level. The CHOS aromatic compounds explained higher light absorption efficiencies of biomass burning emissions compared to coals. The unique formulas of coal combustion aerosols were characterized by higher unsaturated compounds, such information could be used for source appointment.
Kai Song, Rongzhi Tang, Jingshun Zhang, Zichao Wan, Yuan Zhang, Kun Hu, Yuanzheng Gong, Daqi Lv, Sihua Lu, Yu Tan, Ruifeng Zhang, Ang Li, Shuyuan Yan, Shichao Yan, Baoming Fan, Wenfei Zhu, Chak K. Chan, Maosheng Yao, and Song Guo
Atmos. Chem. Phys., 23, 13585–13595, https://doi.org/10.5194/acp-23-13585-2023, https://doi.org/10.5194/acp-23-13585-2023, 2023
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Incense burning is common in Asia, posing threats to human health and air quality. However, less is known about its emissions and health risks. Full-volatility organic species from incense-burning smoke are detected and quantified. Intermediate-volatility volatile organic compounds (IVOCs) are crucial organics accounting for 19.2 % of the total emission factors (EFs) and 40.0 % of the secondary organic aerosol (SOA) estimation, highlighting the importance of incorporating IVOCs into SOA models.
Chong Han, Jiawei Ma, Wangjin Yang, and Hongxing Yang
EGUsphere, https://doi.org/10.5194/egusphere-2023-1273, https://doi.org/10.5194/egusphere-2023-1273, 2023
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We provide direct evidences that light prominently enhances the conversion of SO2 to sulfates on non-photoactive mineral dust, where 3SO2 can act as a pivotal trigger to generate sulfates. Photochemical sulfate formation depends on H2O, O2, and basicity of mineral dust. It is suggested that the SO2 photochemistry on non-photoactive mineral dust significantly contributes to sulfates, highlighting previously unknown pathway to better explain the missing sources of atmospheric sulfates.
Qianqian Gao, Shengqiang Zhu, Kaili Zhou, Jinghao Zhai, Shaodong Chen, Qihuang Wang, Shurong Wang, Jin Han, Xiaohui Lu, Hong Chen, Liwu Zhang, Lin Wang, Zimeng Wang, Xin Yang, Qi Ying, Hongliang Zhang, Jianmin Chen, and Xiaofei Wang
Atmos. Chem. Phys., 23, 13049–13060, https://doi.org/10.5194/acp-23-13049-2023, https://doi.org/10.5194/acp-23-13049-2023, 2023
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Dust is a major source of atmospheric aerosols. Its chemical composition is often assumed to be similar to the parent soil. However, this assumption has not been rigorously verified. Dust aerosols are mainly generated by wind erosion, which may have some chemical selectivity. Mn, Cd and Pb were found to be highly enriched in fine-dust (PM2.5) aerosols. In addition, estimation of heavy metal emissions from dust generation by air quality models may have errors without using proper dust profiles.
Daniel C. O. Thornton, Sarah D. Brooks, Elise K. Wilbourn, Jessica Mirrielees, Alyssa N. Alsante, Gerardo Gold-Bouchot, Andrew Whitesell, and Kiana McFadden
Atmos. Chem. Phys., 23, 12707–12729, https://doi.org/10.5194/acp-23-12707-2023, https://doi.org/10.5194/acp-23-12707-2023, 2023
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A major uncertainty in our understanding of clouds and climate is the sources and properties of the aerosol on which clouds grow. We found that aerosol containing organic matter from fast-growing marine phytoplankton was a source of ice-nucleating particles (INPs). INPs facilitate freezing of ice crystals at warmer temperatures than otherwise possible and therefore change cloud formation and properties. Our results show that ecosystem processes and the properties of sea spray aerosol are linked.
Adam Milsom, Shaojun Qi, Ashmi Mishra, Thomas Berkemeier, Zhenyu Zhang, and Christian Pfrang
Atmos. Chem. Phys., 23, 10835–10843, https://doi.org/10.5194/acp-23-10835-2023, https://doi.org/10.5194/acp-23-10835-2023, 2023
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Aerosols and films are found indoors and outdoors. Our study measures and models reactions of a cooking aerosol proxy with the atmospheric oxidant ozone relying on a low-cost but sensitive technique based on mass changes and film rigidity. We found that film morphology changed and film rigidity increased with evidence of surface crust formation during ozone exposure. Our modelling results demonstrate clear potential to take this robust method to the field for reaction monitoring.
Shan Zhang, Lin Du, Zhaomin Yang, Narcisse Tsona Tchinda, Jianlong Li, and Kun Li
Atmos. Chem. Phys., 23, 10809–10822, https://doi.org/10.5194/acp-23-10809-2023, https://doi.org/10.5194/acp-23-10809-2023, 2023
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In this study, we have investigated the distinct impacts of humidity on the ozonolysis of two structurally different monoterpenes (limonene and Δ3-carene). We found that the molecular structure of precursors can largely influence the SOA formation under high RH by impacting the multi-generation reactions. Our results could advance knowledge on the roles of water content in aerosol formation and inform ongoing research on particle environmental effects and applications in models.
Yangzhihao Zhan, Min Xie, Wei Zhao, Tijian Wang, Da Gao, Pulong Chen, Jun Tian, Kuanguang Zhu, Shu Li, Bingliang Zhuang, Mengmeng Li, Yi Luo, and Runqi Zhao
Atmos. Chem. Phys., 23, 9837–9852, https://doi.org/10.5194/acp-23-9837-2023, https://doi.org/10.5194/acp-23-9837-2023, 2023
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Although the main source contribution of pollution is secondary inorganic aerosols in Nanjing, health risks mainly come from industry sources and vehicle emissions. Therefore, the development of megacities should pay more attention to the health burden of vehicle emissions, coal combustion, and industrial processes. This study provides new insight into assessing the relationship between source apportionment and health risks and can provide valuable insight into air pollution strategies.
Jonathan P. D. Abbatt and A. R. Ravishankara
Atmos. Chem. Phys., 23, 9765–9785, https://doi.org/10.5194/acp-23-9765-2023, https://doi.org/10.5194/acp-23-9765-2023, 2023
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With important climate and air quality impacts, atmospheric multiphase chemistry involves gas interactions with aerosol particles and cloud droplets. We summarize the status of the field and discuss potential directions for future growth. We highlight the importance of a molecular-level understanding of the chemistry, along with atmospheric field studies and modeling, and emphasize the necessity for atmospheric multiphase chemists to interact widely with scientists from neighboring disciplines.
Zhancong Liang, Zhihao Cheng, Ruifeng Zhang, Yiming Qin, and Chak K. Chan
Atmos. Chem. Phys., 23, 9585–9595, https://doi.org/10.5194/acp-23-9585-2023, https://doi.org/10.5194/acp-23-9585-2023, 2023
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In this study, we found that the photolysis of sodium nitrate leads to a much quicker decay of free amino acids (FAAs, with glycine as an example) in the particle phase than ammonium nitrate photolysis, which is likely due to the molecular interactions between FAAs and different nitrate salts. Since sodium nitrate likely co-exists with FAAs in the coarse-mode particles, particulate nitrate photolysis can possibly contribute to a rapid decay of FAAs and affect atmospheric nitrogen cycling.
Julian Resch, Kate Wolfer, Alexandre Barth, and Markus Kalberer
Atmos. Chem. Phys., 23, 9161–9171, https://doi.org/10.5194/acp-23-9161-2023, https://doi.org/10.5194/acp-23-9161-2023, 2023
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Detailed chemical analysis of organic aerosols is necessary to better understand their effects on climate and health. Aerosol samples are often stored for days to months before analysis. We examined the effects of storage conditions (i.e., time, temperature, and aerosol storage on filters or as solvent extracts) on composition and found significant changes in the concentration of individual compounds, indicating that sample storage can strongly affect the detailed chemical particle composition.
Xiaoliang Wang, Hatef Firouzkouhi, Judith C. Chow, John G. Watson, Warren Carter, and Alexandra S. M. De Vos
Atmos. Chem. Phys., 23, 8921–8937, https://doi.org/10.5194/acp-23-8921-2023, https://doi.org/10.5194/acp-23-8921-2023, 2023
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Open burning of household and municipal solid waste is a common practice in developing countries and is a significant source of air pollution. However, few studies have measured emissions from open burning of waste. This study determined gas and particulate emissions from open burning of 10 types of household solid-waste materials. These results can improve emission inventories, air quality management, and assessment of the health and climate effects of open burning of household waste.
Anita M. Avery, Mariam Fawaz, Leah R. Williams, Tami Bond, and Timothy B. Onasch
Atmos. Chem. Phys., 23, 8837–8854, https://doi.org/10.5194/acp-23-8837-2023, https://doi.org/10.5194/acp-23-8837-2023, 2023
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Pyrolysis is the thermal decomposition of fuels like wood which occurs during combustion or as an isolated process. During combustion, some pyrolysis products are emitted directly, while others are oxidized in the combustion process. This work describes the chemical composition of particle-phase pyrolysis products in order to investigate both the uncombusted emissions from wildfires and the fuel that participates in combustion.
Lan Ma, Reed Worland, Wenqing Jiang, Christopher Niedek, Chrystal Guzman, Keith J. Bein, Qi Zhang, and Cort Anastasio
Atmos. Chem. Phys., 23, 8805–8821, https://doi.org/10.5194/acp-23-8805-2023, https://doi.org/10.5194/acp-23-8805-2023, 2023
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Although photooxidants are important in airborne particles, little is known of their concentrations. By measuring oxidants in a series of particle dilutions, we predict their concentrations in aerosol liquid water (ALW). We find •OH concentrations in ALW are on the order of 10−15 M, similar to their cloud/fog values, while oxidizing triplet excited states and singlet molecular oxygen have ALW values of ca. 10−13 M and 10−12 M, respectively, roughly 10–100 times higher than in cloud/fog drops.
Daniel A. Knopf, Peiwen Wang, Benny Wong, Jay M. Tomlin, Daniel P. Veghte, Nurun N. Lata, Swarup China, Alexander Laskin, Ryan C. Moffet, Josephine Y. Aller, Matthew A. Marcus, and Jian Wang
Atmos. Chem. Phys., 23, 8659–8681, https://doi.org/10.5194/acp-23-8659-2023, https://doi.org/10.5194/acp-23-8659-2023, 2023
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Ambient particle populations and associated ice-nucleating particles (INPs)
were examined from particle samples collected on board aircraft in the marine
boundary layer and free troposphere in the eastern North Atlantic during
summer and winter. Chemical imaging shows distinct differences in the
particle populations seasonally and with sampling altitudes, which are
reflected in the INP types. Freezing parameterizations are derived for
implementation in cloud-resolving and climate models.
Dandan Liu, Yun Zhang, Shujun Zhong, Shuang Chen, Qiaorong Xie, Donghuan Zhang, Qiang Zhang, Wei Hu, Junjun Deng, Libin Wu, Chao Ma, Haijie Tong, and Pingqing Fu
Atmos. Chem. Phys., 23, 8383–8402, https://doi.org/10.5194/acp-23-8383-2023, https://doi.org/10.5194/acp-23-8383-2023, 2023
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Based on ultra-high-resolution mass spectrometry analysis, we found that β-pinene oxidation-derived highly oxygenated organic molecules (HOMs) exhibit higher yield at high ozone concentration, while limonene oxidation-derived HOMs exhibit higher yield at moderate ozone concentration. The distinct molecular response of HOMs and low-volatile species in different biogenic secondary organic aerosols to ozone concentrations provides a new clue for more accurate air quality prediction and management.
Mengying Bao, Yan-Lin Zhang, Fang Cao, Yihang Hong, Yu-Chi Lin, Mingyuan Yu, Hongxing Jiang, Zhineng Cheng, Rongshuang Xu, and Xiaoying Yang
Atmos. Chem. Phys., 23, 8305–8324, https://doi.org/10.5194/acp-23-8305-2023, https://doi.org/10.5194/acp-23-8305-2023, 2023
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The interaction between the sources and molecular compositions of humic-like substances (HULIS) at Nanjing, China, was explored. Significant fossil fuel source contributions to HULIS were found in the 14C results from biomass burnng and traffic emissions. Increasing biogenic secondary organic aerosol (SOA) products and anthropogenic aromatic compounds were detected in summer and winter, respectively.
Molly Frauenheim, Jason D. Surratt, Zhenfa Zhang, and Avram Gold
Atmos. Chem. Phys., 23, 7859–7866, https://doi.org/10.5194/acp-23-7859-2023, https://doi.org/10.5194/acp-23-7859-2023, 2023
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We report synthesis of the isoprene-derived photochemical oxidation products trans- and cis-β-epoxydiols in high overall yields from inexpensive, readily available starting compounds. Protection/deprotection steps or time-consuming purification is not required, and the reactions can be scaled up to gram quantities. The procedures provide accessibility of these important compounds to atmospheric chemistry laboratories with only basic capabilities in organic synthesis.
Xiangyun Zhang, Jun Li, Sanyuan Zhu, Junwen Liu, Ping Ding, Shutao Gao, Chongguo Tian, Yingjun Chen, Ping'an Peng, and Gan Zhang
Atmos. Chem. Phys., 23, 7495–7502, https://doi.org/10.5194/acp-23-7495-2023, https://doi.org/10.5194/acp-23-7495-2023, 2023
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The results show that 14C elemental carbon (EC) was not only related to the isolation method but also to the types and proportions of the biomass sources in the sample. The hydropyrolysis (Hypy) method, which can be used to isolate a highly stable portion of ECHypy and avoid charring, is a more effective and stable approach for the matrix-independent 14C quantification of EC in aerosols, and the 13C–ECHypy and non-fossil ECHypy values of SRM1649b were –24.9 ‰ and 11 %, respectively.
Amir Yazdani, Satoshi Takahama, John K. Kodros, Marco Paglione, Mauro Masiol, Stefania Squizzato, Kalliopi Florou, Christos Kaltsonoudis, Spiro D. Jorga, Spyros N. Pandis, and Athanasios Nenes
Atmos. Chem. Phys., 23, 7461–7477, https://doi.org/10.5194/acp-23-7461-2023, https://doi.org/10.5194/acp-23-7461-2023, 2023
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Organic aerosols directly emitted from wood and pellet stove combustion are found to chemically transform (approximately 15 %–35 % by mass) under daytime aging conditions simulated in an environmental chamber. A new marker for lignin-like compounds is found to degrade at a different rate than previously identified biomass burning markers and can potentially provide indication of aging time in ambient samples.
Hao Luo, Luc Vereecken, Hongru Shen, Sungah Kang, Iida Pullinen, Mattias Hallquist, Hendrik Fuchs, Andreas Wahner, Astrid Kiendler-Scharr, Thomas F. Mentel, and Defeng Zhao
Atmos. Chem. Phys., 23, 7297–7319, https://doi.org/10.5194/acp-23-7297-2023, https://doi.org/10.5194/acp-23-7297-2023, 2023
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Oxidation of limonene, an element emitted by trees and chemical products, by OH, a daytime oxidant, forms many highly oxygenated organic molecules (HOMs), including C10-20 compounds. HOMs play an important role in new particle formation and growth. HOM formation can be explained by the chemistry of peroxy radicals. We found that a minor branching ratio initial pathway plays an unexpected, significant role. Considering this pathway enables accurate simulations of HOMs and other concentrations.
Heather L. Runberg and Brian J. Majestic
Atmos. Chem. Phys., 23, 7213–7223, https://doi.org/10.5194/acp-23-7213-2023, https://doi.org/10.5194/acp-23-7213-2023, 2023
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Environmentally persistent free radicals (EPFRs) are an emerging pollutant found in soot particles. Understanding how these change as they move through the atmosphere is important to human health. Here, soot was generated in the laboratory and exposed to simulated sunlight. The concentrations and characteristics of EPFRs in the soot were measured and found to be unchanged. However, it was also found that the ability of soot to form hydroxyl radicals was stronger for fresh soot.
Wenqing Jiang, Christopher Niedek, Cort Anastasio, and Qi Zhang
Atmos. Chem. Phys., 23, 7103–7120, https://doi.org/10.5194/acp-23-7103-2023, https://doi.org/10.5194/acp-23-7103-2023, 2023
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We studied how aqueous-phase secondary organic aerosol (aqSOA) form and evolve from a phenolic carbonyl commonly present in biomass burning smoke. The composition and optical properties of the aqSOA are significantly affected by photochemical reactions and are dependent on the oxidants' concentration and identity in water. During photoaging, the aqSOA initially becomes darker, but prolonged aging leads to the formation of volatile products, resulting in significant mass loss and photobleaching.
Lucía Caudillo, Mihnea Surdu, Brandon Lopez, Mingyi Wang, Markus Thoma, Steffen Bräkling, Angela Buchholz, Mario Simon, Andrea C. Wagner, Tatjana Müller, Manuel Granzin, Martin Heinritzi, Antonio Amorim, David M. Bell, Zoé Brasseur, Lubna Dada, Jonathan Duplissy, Henning Finkenzeller, Xu-Cheng He, Houssni Lamkaddam, Naser G. A. Mahfouz, Vladimir Makhmutov, Hanna E. Manninen, Guillaume Marie, Ruby Marten, Roy L. Mauldin, Bernhard Mentler, Antti Onnela, Tuukka Petäjä, Joschka Pfeifer, Maxim Philippov, Ana A. Piedehierro, Birte Rörup, Wiebke Scholz, Jiali Shen, Dominik Stolzenburg, Christian Tauber, Ping Tian, António Tomé, Nsikanabasi Silas Umo, Dongyu S. Wang, Yonghong Wang, Stefan K. Weber, André Welti, Marcel Zauner-Wieczorek, Urs Baltensperger, Richard C. Flagan, Armin Hansel, Jasper Kirkby, Markku Kulmala, Katrianne Lehtipalo, Douglas R. Worsnop, Imad El Haddad, Neil M. Donahue, Alexander L. Vogel, Andreas Kürten, and Joachim Curtius
Atmos. Chem. Phys., 23, 6613–6631, https://doi.org/10.5194/acp-23-6613-2023, https://doi.org/10.5194/acp-23-6613-2023, 2023
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In this study, we present an intercomparison of four different techniques for measuring the chemical composition of nanoparticles. The intercomparison was performed based on the observed chemical composition, calculated volatility, and analysis of the thermograms. We found that the methods generally agree on the most important compounds that are found in the nanoparticles. However, they do see different parts of the organic spectrum. We suggest potential explanations for these differences.
Ruifeng Zhang and Chak Keung Chan
Atmos. Chem. Phys., 23, 6113–6126, https://doi.org/10.5194/acp-23-6113-2023, https://doi.org/10.5194/acp-23-6113-2023, 2023
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Research into sulfate and nitrate formation from co-uptake of NO2 and SO2, especially under irradiation, is rare. We studied the co-uptake of NO2 and SO2 by NaCl droplets under various conditions, including irradiation and dark, and RHs, using Raman spectroscopy flow cell and kinetic model simulation. Significant nitrate formation from NO2 hydrolysis can be photolyzed to generate OH radicals that can further react with chloride to produce reactive chlorine species and promote sulfate formation.
Shinnosuke Ishizuka, Oliver Reich, Grégory David, and Ruth Signorell
Atmos. Chem. Phys., 23, 5393–5402, https://doi.org/10.5194/acp-23-5393-2023, https://doi.org/10.5194/acp-23-5393-2023, 2023
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Photosensitizers play an important role in the photochemistry of atmospheric aerosols. Our study provides evidence that mesoscopic glycine clusters forming in aqueous droplets act as unconventional photosensitizers in the visible light spectrum. We observed the influence of these photoactive molecular aggregates in single optically trapped aqueous droplets. Such mesoscopic photosensitizers might be more important for aerosol photochemistry than previously anticipated.
Liyuan Zhou, Zhancong Liang, Beatrix Rosette Go Mabato, Rosemarie Ann Infante Cuevas, Rongzhi Tang, Mei Li, Chunlei Cheng, and Chak K. Chan
Atmos. Chem. Phys., 23, 5251–5261, https://doi.org/10.5194/acp-23-5251-2023, https://doi.org/10.5194/acp-23-5251-2023, 2023
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This study reveals the sulfate formation in photosensitized particles from biomass burning under UV and SO2, of which the relative atmospheric importance in sulfate production was qualitatively compared to nitrate photolysis. On the basis of single-particle aerosol mass spectrometry measurements, the number percentage of sulfate-containing particles and relative peak area of sulfate in single-particle spectra exhibited a descending order of 3,4-dimethoxybenzaldehyde > vanillin > syringaldehyde.
Mohammed Jaoui, Kenneth S. Docherty, Michael Lewandowski, and Tadeusz E. Kleindienst
Atmos. Chem. Phys., 23, 4637–4661, https://doi.org/10.5194/acp-23-4637-2023, https://doi.org/10.5194/acp-23-4637-2023, 2023
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VCPs are a class of chemicals widely used in industrial and consumer products (e.g., coatings, adhesives, inks, personal care products) and are an important component of total VOCs in urban atmospheres. This study provides SOA yields and detailed chemical analysis of the gas- and aerosol-phase products of the photooxidation of one of these VCPs, benzyl alcohol. These results will allow better links between characterized sources and their resulting criteria for pollutant formation.
Jian Zhao, Ella Häkkinen, Frans Graeffe, Jordan E. Krechmer, Manjula R. Canagaratna, Douglas R. Worsnop, Juha Kangasluoma, and Mikael Ehn
Atmos. Chem. Phys., 23, 3707–3730, https://doi.org/10.5194/acp-23-3707-2023, https://doi.org/10.5194/acp-23-3707-2023, 2023
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Based on the combined measurements of gas- and particle-phase highly oxygenated organic molecules (HOMs) from α-pinene ozonolysis, enhancement of dimers in particles was observed. We conducted experiments wherein the dimer to monomer (D / M) ratios of HOMs in the gas phase were modified (adding CO / NO) to investigate the effects of the corresponding D / M ratios in the particles. These results are important for a better understanding of secondary organic aerosol formation in the atmosphere.
Beatrix Rosette Go Mabato, Yong Jie Li, Dan Dan Huang, Yalin Wang, and Chak K. Chan
Atmos. Chem. Phys., 23, 2859–2875, https://doi.org/10.5194/acp-23-2859-2023, https://doi.org/10.5194/acp-23-2859-2023, 2023
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We compared non-phenolic and phenolic methoxybenzaldehydes as photosensitizers for aqueous secondary organic aerosol (aqSOA) formation under cloud and fog conditions. We showed that the structural features of photosensitizers affect aqSOA formation. We also elucidated potential interactions between photosensitization and ammonium nitrate photolysis. Our findings are useful for evaluating the importance of photosensitized reactions on aqSOA formation, which could improve aqSOA predictive models.
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.
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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