Reply on RC2 DOI Creative Commons
Linia Tashmim

Published: Oct. 3, 2023

Abstract. Marine emissions of dimethyl sulfide (DMS) and the subsequent formation its oxidation products methane sulfonic acid (MSA) sulfuric (H2SO4) are well-known natural precursors atmospheric aerosols, contributing to particle mass cloud over ocean coastal regions. Despite a long-recognized well-studied role in marine troposphere, DMS chemistry remains work progress within many current air quality climate models, with recent advances exploring heterogeneous uncovering previously unknown intermediate species. With identification additional pathways species influencing eventual fate, it is important understand impact these on overall sulfate aerosol budget size distribution. In this work, we update evaluate mechanism chemical transport model GEOS-Chem by implementing expanded into model. These updates include gas- aqueous-phase reactions, intermediates sulfoxide (DMSO) sulphinic (MSIA), as well loss uptake recently quantified hydroperoxymethyl thioformate (HPMTF). We find that updated collectively decreases global mean surface-layer gas-phase sulfur dioxide (SO2) mixing ratio 38 % enhances (SO42-) 16 %. further perform sensitivity analyses contribution HPMTF budget. Comparing modeled concentrations available observations improved biases relative previous studies. To quantify impacts distributions concentration use TOMAS microphysics module, finding changes growth affect distribution aerosol. new DMS-oxidation scheme annual surface layer number particles diameters smaller than 80 nm 12 %, processes related mostly responsible for reduction. However, larger increases 4.5 suggesting promotes seasonal sizes capable acting condensation nuclei (CCN).

Language: Английский

Atmospheric amines are a crucial yet missing link in Earth’s climate via airborne aerosol production DOI Creative Commons
Vijay P. Kanawade, Tuija Jokinen

Communications Earth & Environment, Journal Year: 2025, Volume and Issue: 6(1)

Published: Feb. 10, 2025

Atmospheric amines, derivatives of ammonia, play a unique yet not fully understood role in air quality, climate and public health. Sub-5 parts per trillion Volume (pptV, <10-12 volume) mixing ratios amines facilitate the physical and/or chemical transformation aerosols atmosphere, enhancing aerosol formation growth rates, hygroscopicity, activation cloud condensation nuclei. This serves as initial step for droplet and, consequently, influences properties hydrological cycle. Ambient observations demonstrate more than thousand-fold particle rates presence compared to ammonia. Yet, challenges related detecting minute levels paucity ambient amine measurements, limited process-based understanding airborne production have resulted being underrepresented global models. Therefore, advanced techniques with extremely low detection limits highly spatially temporally resolved measurements globally diverse environments are essential. Amines, ubiquitous atmospheric compounds that emitted from range natural anthropogenic sources, key activating nuclei, under-represented models require future high-precision measurement.

Language: Английский

Citations

0
A reactive condensation particle counter for measuring atmospherically relevant concentrations of sulfuric acid DOI Creative Commons
Dominic Casalnuovo, Darren Cheng, Michel Romero-Flores

et al.

Aerosol Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 12

Published: Feb. 13, 2025

Language: Английский

Citations

0
Contribution of expanded marine sulfur chemistry to the seasonal variability of dimethyl sulfide oxidation products and size-resolved sulfate aerosol DOI Creative Commons
Linia Tashmim,

William C. Porter,

Qianjie Chen

et al.

Atmospheric chemistry and physics, Journal Year: 2024, Volume and Issue: 24(6), P. 3379 - 3403

Published: March 19, 2024

Abstract. Marine emissions of dimethyl sulfide (DMS) and the subsequent formation its oxidation products methanesulfonic acid (MSA) sulfuric (H2SO4) are well-known natural precursors atmospheric aerosols, contributing to particle mass cloud over ocean coastal regions. Despite a long-recognized well-studied role in marine troposphere, DMS chemistry remains work progress within many current air quality climate models, with recent advances exploring heterogeneous uncovering previously unknown intermediate species. With identification additional pathways species that influence eventual fate DMS, it is important understand impact these on overall sulfate aerosol budget size distribution. In this work, we update evaluate mechanism chemical transport model GEOS-Chem by implementing expanded model. These updates include gas- aqueous-phase reactions, intermediates sulfoxide (DMSO) methanesulfinic (MSIA), loss uptake recently quantified hydroperoxymethyl thioformate (HPMTF). We find updated collectively decreases global mean surface-layer gas-phase sulfur dioxide (SO2) mixing ratio 40 % enhances (SO42-) 17 %. further perform sensitivity analyses contribution HPMTF budget. Comparing modeled concentrations available observations, improved biases relative previous studies. To quantify impacts distributions concentration, use TwO-Moment Aerosol Sectional (TOMAS) microphysics module coupled changes growth affect distribution aerosol. new DMS-oxidation scheme, annual number concentration particles diameters smaller than 80 nm 16.8 %, processes related being mostly responsible for reduction. However, larger (corresponding capable acting as condensation nuclei, CCN) increases 3.8 suggesting scheme promotes seasonal sizes.

Language: Английский

Citations

2
The role of aldehydes on sulfur based-new particle formation: a theoretical study DOI Creative Commons
Guohua Zhang, Min Liu,

Yaning Han

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(19), P. 13321 - 13335

Published: Jan. 1, 2024

The acidity of the acid, nature nucleophilic agents, type aldehyde, proton transferall play significant roles in nucleation process aldehyde-sulfur-based particles.

Language: Английский

Citations

1
Pan-Arctic methanesulfonic acid aerosol: source regions, atmospheric drivers, and future projections DOI Creative Commons
Jakob Pernov, Eliza Harris, Michele Volpi

et al.

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

Published: July 13, 2024

Abstract Natural aerosols are an important, yet understudied, part of the Arctic climate system. marine biogenic aerosol components (e.g., methanesulfonic acid, MSA) becoming increasingly important due to changing environmental conditions. In this study, we combine in situ observations with atmospheric transport modeling and meteorological reanalysis data a data-driven framework aim (1) identify seasonal cycles source regions MSA, (2) elucidate relationships between MSA variables, (3) project response based on trends extrapolated from variables determine which contributing these projected changes. We have identified main areas be Atlantic Pacific sectors Arctic. Using gradient-boosted trees, were able explain 84% variance find that most for indirectly related either gas- or aqueous-phase oxidation dimethyl sulfide (DMS): shortwave longwave downwelling radiation, temperature, low cloud cover. undergo shift, non-monotonic decreases April/May increases June-September, over next 50 years. Different different months driving changes, highlighting complexity influences natural component. Although oceanic (sea surface DMS emissions, sea ice) precipitation remains seen, here show will likely shift solely changes variables.

Language: Английский

Citations

1
How the understanding of atmospheric new particle formation has evolved along with the development of measurement and analysis methods DOI Creative Commons
Katrianne Lehtipalo, Tiina M. Nieminen,

S Schobesberger

et al.

Journal of Aerosol Science, Journal Year: 2024, Volume and Issue: unknown, P. 106494 - 106494

Published: Nov. 1, 2024

Language: Английский

Citations

1
Assessing the Intensity of Marine Biogenic Influence on the Lower Atmosphere: An Insight into the Distribution of Marine Biogenic Aerosols over the Eastern China Seas DOI
Shengqian Zhou, Ying Chen, Fanghui Wang

et al.

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(34), P. 12741 - 12751

Published: Aug. 14, 2023

Marine biological activities make a non-negligible contribution to atmospheric aerosols, leading potential impacts on the regional environment and climate. The eastern China seas are highly productive with significant emissions of biogenic substances, but spatiotemporal variations marine aerosols not well known. Air mass exposure chlorophyll (AEC) can be used indicate influence sources atmosphere certain degree. In this study, 12 year (2009-2020) daily AEC were calculated over seas, showing spatial seasonal patterns intensity which co-controlled by surface phytoplankton biomass boundary layer height. By combining values, relevant meteorological parameters, extensive observations typical secondary aerosol component, methanesulfonate (MSA), parameterization scheme for MSA simulation was successfully constructed. This AEC-based approach observation constraints provides new insight into distribution aerosols. Meanwhile, wintertime air retention land exhibited decrease, decadal weakening trend terrestrial transport, is probably related East Asian winter monsoon. Thus, may play an increasingly important role in studied region.

Language: Английский

Citations

3
Sulfuric Acid Nucleation Potential Model Applied to Complex Reacting Systems in the Atmosphere DOI Creative Commons
Jack S. Johnson, Coty N. Jen

Journal of Geophysical Research Atmospheres, Journal Year: 2023, Volume and Issue: 128(20)

Published: Oct. 14, 2023

Abstract Atmospheric aerosol particles impact Earth's radiation balance by acting as seeds for cloud droplet formation. Over half of global seed are formed nucleation, a process where gas‐phase compounds react to form stable particles. Reactions sulfuric acid (SA) with wide variety atmospheric have been previously shown drive nucleation in the lower troposphere. However, climate models poorly predict particle rates since current do not describe systems containing tens hundreds precursor compounds. The potential model (NPM) was recently developed SA complex mixtures measuring an effective base concentration using 1‐nm condensation counter. This technique estimating can be deployed at much higher spatial and temporal resolution than methods which require detailed knowledge all reactions measurements, typically mass spectrometer, gases. work expands NPM showing that this capture enhancement suppression within mixture organic inorganic acids, ambient air, across range atmospherically relevant relative humidities. In addition, expression calculating also derived from NPM. Ultimately, provides simple way measure extent enhance

Language: Английский

Citations

2
Implications for new particle formation in air of the use of monoethanolamine in carbon capture and storage DOI
Véronique Perraud, Kanuri I. Roundtree, Patricia M. Morris

et al.

Physical Chemistry Chemical Physics, Journal Year: 2024, Volume and Issue: 26(11), P. 9005 - 9020

Published: Jan. 1, 2024

This study reports on the high yield of new particle formation (NPF) from reaction an alkanolamine commonly used in carbon capture and storage technology, monoethanolamine, with strong atmospherically relevant acid, methanesulfonic acid.

Language: Английский

Citations

0
Pan-Arctic Methanesulfonic Acid Aerosol: Source regions, atmospheric drivers, and future projections DOI Creative Commons
Jakob Pernov, Eliza Harris, Michele Volpi

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: March 11, 2024

Abstract Natural aerosols are an important, yet understudied, part of the Arctic climate system. marine biogenic aerosol components (e.g., methanesulfonic acid, MSA) becoming increasingly important due to changing environmental conditions. In this study, we combine in situ observations with atmospheric transport modeling and meteorological reanalysis data a data-driven framework aim (1) identify seasonal cycles source regions MSA, (2) elucidate relationships between MSA variables, (3) project response based on trends extrapolated from variables determine which contributing these projected changes. We have identified main areas be Atlantic Pacific sectors Arctic. Using gradient-boosted trees, were able explain 84 % variance find that most for indirectly related either gas- or aqueous-phase oxidation dimethyl sulfide (DMS): shortwave longwave downwelling radiation, temperature, low cloud cover. undergo shift, non-monotonic decreases April/May increases June-September, over next 50 years. Different different months driving changes, highlighting complexity influences natural component. Although oceanic (sea surface DMS emissions, sea ice) precipitation remains seen, here show will likely shift solely changes variables.

Language: Английский

Citations

0