Characterization of Individual Aerosol Particles

Sullivan, R. C.; Gorkowski, Kyle; Jahn, Leif G.

doi:10.1016/b978-0-12-813641-6.00012-1

Cited by 10 publications

(9 citation statements)

References 213 publications

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“…It should be noted that optical trapping and tweezing coupled with vibrational spectroscopy techniques have also been used for more detailed characterization of the chemical and physical properties of single aerosol droplets during dynamic multiphase processes (Bzdek et al, ; David et al, , ; Davies & Wilson, ; Sullivan et al, ), such as coagulation and uptake of water or organics (Hopkins et al, ; Mitchem et al, ). With our focus on building a population‐level understanding of atmospheric particles, these methods are beyond the scope of this review, though they are providing valuable information toward understanding physicochemical properties of individual particles.…”

Section: Measurement Techniques For Aerosol Mixing Statementioning

confidence: 99%

Aerosol Mixing State: Measurements, Modeling, and Impacts

Riemer

Ault

West

et al. 2019

Reviews of Geophysics

271

287

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Atmospheric aerosols are complex mixtures of different chemical species, and individual particles exist in many different shapes and morphologies. Together, these characteristics contribute to the aerosol mixing state. This review provides an overview of measurement techniques to probe aerosol mixing state, discusses how aerosol mixing state is represented in atmospheric models at different scales, and synthesizes our knowledge of aerosol mixing state's impact on climate‐relevant properties, such as cloud condensation and ice nucleating particle concentrations, and aerosol optical properties. We present these findings within a framework that defines aerosol mixing state along with appropriate mixing state metrics to quantify it. Future research directions are identified, with a focus on the need for integrating mixing state measurements and modeling.

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Section: Measurement Techniques For Aerosol Mixing Statementioning

confidence: 99%

Aerosol Mixing State: Measurements, Modeling, and Impacts

Riemer

Ault

West

et al. 2019

Reviews of Geophysics

271

287

View full text Add to dashboard Cite

show abstract

“…To conclude, we emphasize that the wide variety of atmospheric aerosol chemical composition and physico-chemical properties requires single-particle analysis, in order to to fully characterize the chemical evolution of particles and their effects on the environment, clouds, global climate, and health. Late progress and advances with respect to state-of-the-art techniques for individual particle analysis are presented in a comprehensive manner in [562]. The approach focuses on "online single-particle mass spectrometry, experiments performed with levitated isolated particles using an EDB or aerosol optical tweezers, and the use of electron, X-ray, and Raman spectromicroscopies for detailed analysis and chemical mapping of particles collected on substrates.…”

Section: Hazardous Effects Of Aerosols and Nanoparticles On Humans Fi...mentioning

confidence: 99%

“…Late results and directions of research can be also found in the paper of Hallen [537]. Recent advances and "state of the art science in techniques for individual particle analysis" are found in [562]. ToF mass spectrometers are able to identify aerosolized microbes in ambient sea spray aerosol [499].…”

Section: High Precision Mass Measurements For Aerosols and Nanoparticlesmentioning

confidence: 99%

The physics and applications of strongly coupled plasmas levitated in electrodynamic traps

Mihalcea¹,

Филинов²,

Syrovatka³

et al. 2019

Preprint

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Charged (nano)particles confined in electrodynamic traps can evolve into strongly correlated Coulomb systems, which are the subject of current investigation. Exciting physical phenomena associated to Coulomb systems have been reported such as autowave generation, phase transitions, system self-locking at the ends of the linear Paul trap, self-organization in layers, or pattern formation and scaling. The dynamics of ordered structures consisting of highly nonideal similarly charged nanoparticles, with coupling parameter of the order Γ = 10 8 is investigated. This approach enables us to study the interaction of nanoparticle structures in presence and in absence of the neutralizing plasma background, as well as to investigate various types of phenomena and physical forces these structures experience. Applications of electrodynamic levitation for mass spectrometry, including containment and study of single aerosols and nanoparticles are reviewed, with an emphasis on state of the art experiments and techniques, as well as future trends. Late experimental data suggest that inelastic scattering can be successfully applied to the detection of biological particles such as pollen, bacteria, aerosols, traces of explosives or synthetic polymers.

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“…The commercially available PM analyzers are based mainly on two principles, electrodynamic and optical trap or scatter [13]. The electrodynamic balance (EDA) stably traps charged aerosol particles by balancing the aerosol particle in an electric field.…”

Section: Industrial Process Set-upmentioning

confidence: 99%

“…Based on the literature studied when building the model, no potential relevant variable was left aside that could explain such a poor fit of the model besides what was already mentioned for Figure 5 regarding the meteorological parameters monitored from the closest station. Sullivan et al [13] point out that the electric field strength required to stably trap the particle provides an accurate real-time measurement if the charge state is known although tests for single particles have being performed only on the range greater than 10 µm in diameter. None similar study was found for UFPs by the knowledge of authors.…”

Section: Eda Ufp Concentration As a Function Of Process And Meteorological Parametersmentioning

confidence: 99%

Regression modeling to predict ultrafine particles emission in a mineral plant combining meteorological and process variables

Krauss¹,

Aguiar²

2021

Tecnol. Metal. Mater. Min.

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Ultrafine particles are object of main health concern, but its concentration is challenging to be continuous monitored in mineral and metallurgical industrial processes. This paper shows the development of an empirical regression model correlating the ultrafine particles concentration measured by two continuous analyzers, electrodynamic (EDA) and optical scatter (OSA) with meteorological and process parameters. The analyzers were installed at stack of an industrial mineral fertilizer plant over 4 seasons. The results showed that EDA have poor correlation with process or meteorological parameters (r-squared less than 10%) what can be caused by particles not being charged evenly on the stream as its better accuracy for particles over 10µm, as previous studies had suggested. The OSA ultrafine particles concentration model showed r-squared of 45% correlation with meteorological parameters and raw material feed. The model presented and standard error of 0.21 mg/Nm 3 which is considered adequate for industry compliance purposes. OSA shows promising application if meteorological parameters are included, as already in practice for ultrafine particles monitoring outdoors.

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Characterization of Individual Aerosol Particles

Cited by 10 publications

References 213 publications

Aerosol Mixing State: Measurements, Modeling, and Impacts

Aerosol Mixing State: Measurements, Modeling, and Impacts

The physics and applications of strongly coupled plasmas levitated in electrodynamic traps

Regression modeling to predict ultrafine particles emission in a mineral plant combining meteorological and process variables

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