Condensation sink of atmospheric vapors: the effect of vapor properties and the resulting uncertainties

Tuovinen, Santeri; Kontkanen, Jenni; Cai, Runlong; Kulmala, Markku

doi:10.1039/d1ea00032b

Cited by 11 publications

(4 citation statements)

References 72 publications

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“…The other sink for sulfuric acid dimer is coagulation with larger particles (the CS). During the measurements, the CS for sulfuric acid monomer varied between 0.01 and 0.25 s −1 , but the CS for the dimers is anticipated to be slower than the monomer by nearly a half due to the larger cluster size and mass than the sulfuric acid monomer (Tuovinen et al., 2021). Evaporation is the dominant sink for dimers during clean periods (CS < 0.05 s −1 ).…”

Section: Resultsmentioning

confidence: 99%

Sulfur Dioxide Transported From the Residual Layer Drives Atmospheric Nucleation During Haze Periods in Beijing

Wang

Yan

et al. 2023

Geophysical Research Letters

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Section: Resultsmentioning

confidence: 99%

Sulfur Dioxide Transported From the Residual Layer Drives Atmospheric Nucleation During Haze Periods in Beijing

Wang

Yan

et al. 2023

Geophysical Research Letters

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“…However, it is possible that only a fraction of all the collisions lead to coagulation due to e.g., chemical properties of the particles. This is analogous to effectiveness of CS in removing condensable vapors such as sulfuric acid (Tuovinen et al, 2021(Tuovinen et al, , 2020, which has been shown to be higher for ammonium-nitrate rich background particles (Du et al, 2022). If the effectiveness of CoagS for particles between 1.5 nm and 3 nm varies between 0.25 and 1.0, almost all the observed J3/J1.5 that are larger than predicted based on the simulations or L-2007 can be explained.…”

Section: Effect Of Uncertainties and Assumptions On Survival Probabil...mentioning

confidence: 68%

Survival probabilities of atmospheric particles: comparison based on theory, cluster population simulations, and observations in Beijing

Tuovinen

Cai²,

Kerminen³

et al. 2022

Preprint

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Abstract. Atmospheric new particle formation (NPF) events are regularly observed in urban Beijing, despite high concentrations of background particles which, based on theory, should inhibit NPF due to high values of coagulation sink (CoagS). The survival probability, which depends on both CoagS and particle growth rate (GR) is a key parameter in determining occurrence of NPF events, as it describes the fraction of newly formed particles that survive from a smaller diameter to a larger diameter. In this study, we investigate and compare survival probabilities from 1.5 to 3 nm (J3/J1.5), from 3 to 6 nm (J6/J3) and from 6 to 10 nm (J10/J6) based on analytical formulae, cluster population simulations, and atmospheric observations from Beijing. We find that survival probabilities based on the cluster population simulations and one of the analytical formulae are in a good agreement. However, at low ratios between the background condensation sink (CS) and GR, and at high concentrations of sub-3 nm clusters, cluster-cluster collisions efficiently lower survival probabilities in the cluster population simulations. Due to the large concentrations of clusters and small particles required to considerably affect the survival probabilities, we consider it unlikely that cluster-cluster collisions significantly affect atmospheric survival probabilities. The values of J10/J6 observed in Beijing show high variability, most likely due to influences of primary particle emissions, but are on average in a relatively good agreement with the values based on the simulations and the analytical formula. The observed values of J6/J3 are mostly lower than those predicted based on the simulations and the analytical formula, which could be explained by uncertainties in CS and GR. The observed values of J3/J1.5 at high CS/GR are much higher than predicted based on the simulations and the analytical formula. We argue that uncertainties in GR or CS are unlikely to solely explain the observed values of J3/J1.5 under high CS conditions. Thus, further work is needed to better understand the factors influencing survival probabilities of sub-3 nm atmospheric particles in polluted environments.

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“…This phenomenon was attributed to oligomer and/or organosulfate formation. Couvidat et al (2018) and Tuovinen et al (2021) finally stated that BiA0D compounds are not able to condensate according to the kelvin effect but few of them, with low saturation vapor pressure, contribute to the growth of particle per condensation. This present work proposes to keep the same aerosol formation mechanism as proposed in outdoor air quality model for BiA0D, but creating a new surrogate BiA0D' with a low saturation vapor pressure (see Section 2.2.3).…”

Section: Nucleationmentioning

confidence: 99%

Modelling Aerosols in Indoor Air: Assessment with Experiments in Simulated Atmosphere Chambers

Berger¹,

Blond²,

Mendez³

et al. 2022

SSRN Journal

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Condensation sink of atmospheric vapors: the effect of vapor properties and the resulting uncertainties

Abstract: Aerosol particles affect the climate and human health. Thus, understanding and accurately quantifying the processes associated with secondary formation of aerosol particles is highly important. The loss rate of vapor...

Cited by 11 publications

References 72 publications

Sulfur Dioxide Transported From the Residual Layer Drives Atmospheric Nucleation During Haze Periods in Beijing

Sulfur Dioxide Transported From the Residual Layer Drives Atmospheric Nucleation During Haze Periods in Beijing

Survival probabilities of atmospheric particles: comparison based on theory, cluster population simulations, and observations in Beijing

Modelling Aerosols in Indoor Air: Assessment with Experiments in Simulated Atmosphere Chambers

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