Emerging investigator series: surfactants, films, and coatings on atmospheric aerosol particles: a review

Environmental Science Atmospheres, Journal Year: 2022, Volume and Issue: 2(5), P. 775 - 828

Published: Jan. 1, 2022

Surfactants alter the physical and chemical properties of atmospheric aerosol particles.

Language: Английский

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Hygroscopic behavior and aerosol chemistry of atmospheric particles containing organic acids and inorganic salts

npj Climate and Atmospheric Science, Journal Year: 2024, Volume and Issue: 7(1)

Published: Aug. 30, 2024

Abstract Aerosol hygroscopic behavior plays a central role in determining climate effects and environmental influence of atmospheric particulates. Water-soluble organic acids (WSOAs) constitute significant fraction aerosols. These have complex impact on aerosol hygroscopicity due to their physical chemical interactions with inorganic salts. The mixing WSOAs salts exerts multiple the growth phase behaviors particles, largely depending composition ratio, acid properties, particle size between components. play critical water uptake characteristics especially low moderate RH ranges. previous studies reveal occurrence chemistry related chloride/nitrate/ammonium depletions droplets containing potential recycling HCl/HNO 3 /NH depletion may contribute budget reactive gases. A fundamental understanding for inorganic–WSOA systems is essential accurate parameterization models. However, there still lack comprehensive internally mixed systems. present review comprehensively summarizes impacts changes atmospherically relevant particles under subsaturated conditions, overviews recent advances process

Language: Английский

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A comprehensive SERS, SEM and EDX study of individual atmospheric PM2.5 particles in Chengdu, China

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 883, P. 163668 - 163668

Published: April 24, 2023

Language: Английский

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Tutorial: Electrodynamic balance methods for single particle levitation and the physicochemical analysis of aerosol

Journal of Aerosol Science, Journal Year: 2023, Volume and Issue: 174, P. 106255 - 106255

Published: Aug. 28, 2023

Single particle levitation methods are a powerful subset of aerosol instrumentation that allow wide range properties and processes to be explored. One the most common forms single uses electric fields is generally referred as an electrodynamic balance (EDB). There many different kinds EDB's have been designed with applications in mind, corresponding array analytical tools developed characterize particles held these traps. In this tutorial, we review design development EDB discuss methods, including electrostatic analysis, light scattering, spectroscopy, imaging, for measurements hygroscopic growth, volatility, surface tension viscosity, diffusion, phase morphology. We go on recent advanced using mass spectrometry probe composition. This intended provide readers basic knowledge set up platform, measurement protocols based available tools, run experiments fundamental relevant their role atmosphere, impacts clouds climate, effects air quality, health disease, industrial processes.

Language: Английский

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A Collection of Molecular Fingerprints of Single Aerosol Particles in Air for Potential Identification and Detection Using Optical Trapping-Raman Spectroscopy

Molecules, Journal Year: 2022, Volume and Issue: 27(18), P. 5966 - 5966

Published: Sept. 14, 2022

Characterization, identification, and detection of aerosol particles in their native atmospheric states remain a challenge. Recently, optical trapping-Raman spectroscopy (OT-RS) has been developed demonstrated for characterization single, airborne particles. Such different chemical groups have characterized by OT-RS recent years many more are being studied. In this work, we collected single-particle Raman spectra measured using the technique began construction library fingerprints that may be used as reference potential identification atmosphere. We from eight categories including carbons, bioaerosols (pollens, fungi, vitamins, spores), dusts, biological warfare agent surrogates, etc. Among categories, spectral six published previously two other new. also discussed challenges, limitations, advantages aerosol-particle characterization, detection.

Language: Английский

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pH-dependent reaction kinetics between glyoxal and ammonium sulfate in simulated cloud droplets

Journal of Environmental Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Analysis of Atmospheric Particles: From the Bulk to the Interface

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Language: Английский

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Physicochemical characterization of submicron particles using advanced drone-based systems: real-time measurements and single-particle analysis via SERS in a case study from South Korea

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 980, P. 179570 - 179570

Published: May 2, 2025

Language: Английский

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Surface activity of optically-trapped single subpollen particle interacting with atmospheric water

Journal of Aerosol Science, Journal Year: 2025, Volume and Issue: unknown, P. 106609 - 106609

Published: May 1, 2025

Language: Английский

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A drone-based rotating cascade impactor for single-particle analysis: Advancing aerosol mixing state research

Atmospheric Research, Journal Year: 2025, Volume and Issue: unknown, P. 108259 - 108259

Published: May 1, 2025

Language: Английский

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