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Data · dataset · 2026

Dataset on the manuscript: Influence of Tropospheric Temperature on the Formation and Aging of Secondary Organic Aerosol from Biogenic Vapor Mixtures

Listed in RADAR and RADAR4Memory — shown once because both records carry DOI 10.35097/9zvc7fvj505n9d93

Atmospheric temperature and composition variations significantly influence secondary organic aerosol (SOA) formation and aging, and thus fine particulate matter levels and properties relevant for climate, air quality, and human health.

Description

However, the temperature dependence of SOA formation and aging from mixed volatile organic compounds (VOCs) remains insufficiently understood. Therefore, we investigated SOA formation from the oxidation of isoprene and α-pinene mixtures covering the range of tropospheric temperatures (213 – 313 K).

We further examine the aging of the resulting SOA by gradually warming to mimic their atmospheric transport and diurnal aging processes. Notably, at 213 K, isoprene most strongly suppresses α-pinene dimer (C18-20) formation, with isoprene-α-pinene cross dimers appearing 3.5 times more frequently than at 273 K, while the suppression is not temperature-sensitive above 273 K. Upon subsequent warming, particles formed at different temperature ranges undergo distinct aging processes including aerosol evaporation and water uptake.

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Surprisingly, particles formed at higher temperatures are more oxidized yet more volatile than those formed at lower temperatures and subsequently warmed. Chemical transport modeling accounting for temperature-depended simultaneous oxidation of isoprene and α-pinene predicts higher SOA levels across Europe, aligning more closely with observations. These findings highlight the need to consider both temperature and the interaction of biogenic VOCs to accurately describe SOA formation, aging, and global burden.

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Where it is published

Catalogue records · 1

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Inferred from text
Geochemistry 72%
Provenance · 2 source records, 10 field assertions
SourceKeyLast seenRaw
RADAR10.35097/9zvc7fvj505n9d9311 d agoJSON v1
RADAR4Memory10.35097/9zvc7fvj505n9d9311 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · radar service eu deconnector:radar_service_eu_de@1.0.0
concepts[field].anzsrc:group:3703enrichment · radar service eu detaxonomy-embedding@1.1.0title+keywords+description (72%)
concepts[field].local:field:chemistrymapping · radar4memory radar service euconnector:radar4memory_radar_service_eu@1.0.0
concepts[field].local:field:chemistrymapping · radar service eu deconnector:radar_service_eu_de@1.0.0
concepts[field].local:field:earth-environmentalmapping · radar service eu deconnector:radar_service_eu_de@1.0.0
concepts[field].local:field:earth-environmentalmapping · radar4memory radar service euconnector:radar4memory_radar_service_eu@1.0.0
descriptionsource · radar service eu deconnector:radar_service_eu_de@1.0.0/metadata/dc/description
licensesource · radar service eu deconnector:radar_service_eu_de@1.0.0/metadata/dc/rights
publication_datesource · radar service eu deconnector:radar_service_eu_de@1.0.0
titlesource · radar service eu deconnector:radar_service_eu_de@1.0.0/metadata/dc/title