Nitrate Radicals Suppress Biogenic New Particle Formation from Monoterpene Oxidation

Highly oxygenated organic molecules (HOMs) are a major source of new particles that affect the Earth's climate. HOM production from the oxidation of volatile organic compounds (VOCs) occurs during both the day and night and can lead to new particle formation (NPF). However, NPF involving organic vapors has been reported much more often during the daytime than during nighttime. Here, we show that the nitrate radicals (NO3), which arise predominantly at night, inhibit NPF during the oxidation of monoterpenes based on three lines of observational evidence: NPF experiments in the CLOUD (Cosmics Leaving OUtdoor Droplets) chamber at CERN (European Organization for Nuclear Research), radical chemistry experiments using an oxidation flow reactor, and field observations in a wetland that occasionally exhibits nocturnal NPF. Nitrooxy-peroxy radicals formed from NO3 chemistry suppress the production of ultralow-volatility organic compounds (ULVOCs) responsible for biogenic NPF, which are covalently bound peroxy radical (RO2) dimer association products. The ULVOC yield of α-pinene in the presence of NO3 is one-fifth of that resulting from ozone chemistry alone. Even trace amounts of NO3 radicals, at sub-parts per trillion level, suppress the NPF rate by a factor of 4. Ambient observations further confirm that when NO3 chemistry is involved, monoterpene NPF is completely turned off. Our results explain the frequent absence of nocturnal biogenic NPF in monoterpene (α-pinene)-rich environments.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:58

Enthalten in:

Environmental science & technology - 58(2024), 3 vom: 23. Jan., Seite 1601-1614

Sprache:

Englisch

Beteiligte Personen:

Li, Dandan [VerfasserIn]
Huang, Wei [VerfasserIn]
Wang, Dongyu [VerfasserIn]
Wang, Mingyi [VerfasserIn]
Thornton, Joel A [VerfasserIn]
Caudillo, Lucía [VerfasserIn]
Rörup, Birte [VerfasserIn]
Marten, Ruby [VerfasserIn]
Scholz, Wiebke [VerfasserIn]
Finkenzeller, Henning [VerfasserIn]
Marie, Guillaume [VerfasserIn]
Baltensperger, Urs [VerfasserIn]
Bell, David M [VerfasserIn]
Brasseur, Zoé [VerfasserIn]
Curtius, Joachim [VerfasserIn]
Dada, Lubna [VerfasserIn]
Duplissy, Jonathan [VerfasserIn]
Gong, Xianda [VerfasserIn]
Hansel, Armin [VerfasserIn]
He, Xu-Cheng [VerfasserIn]
Hofbauer, Victoria [VerfasserIn]
Junninen, Heikki [VerfasserIn]
Krechmer, Jordan E [VerfasserIn]
Kürten, Andreas [VerfasserIn]
Lamkaddam, Houssni [VerfasserIn]
Lehtipalo, Katrianne [VerfasserIn]
Lopez, Brandon [VerfasserIn]
Ma, Yingge [VerfasserIn]
Mahfouz, Naser G A [VerfasserIn]
Manninen, Hanna E [VerfasserIn]
Mentler, Bernhard [VerfasserIn]
Perrier, Sebastien [VerfasserIn]
Petäjä, Tuukka [VerfasserIn]
Pfeifer, Joschka [VerfasserIn]
Philippov, Maxim [VerfasserIn]
Schervish, Meredith [VerfasserIn]
Schobesberger, Siegfried [VerfasserIn]
Shen, Jiali [VerfasserIn]
Surdu, Mihnea [VerfasserIn]
Tomaz, Sophie [VerfasserIn]
Volkamer, Rainer [VerfasserIn]
Wang, Xinke [VerfasserIn]
Weber, Stefan K [VerfasserIn]
Welti, André [VerfasserIn]
Worsnop, Douglas R [VerfasserIn]
Wu, Yusheng [VerfasserIn]
Yan, Chao [VerfasserIn]
Zauner-Wieczorek, Marcel [VerfasserIn]
Kulmala, Markku [VerfasserIn]
Kirkby, Jasper [VerfasserIn]
Donahue, Neil M [VerfasserIn]
George, Christian [VerfasserIn]
El-Haddad, Imad [VerfasserIn]
Bianchi, Federico [VerfasserIn]
Riva, Matthieu [VerfasserIn]

Links:

Volltext

Themen:

66H7ZZK23N
Aerosols
Air Pollutants
Alpha-pinene
Bicyclic Monoterpenes
Biogenic compounds
Gas phase chemistry
JPF3YI7O34
Journal Article
Mass spectrometry
Monoterpenes
New particle formation
Nitrates
Ozone
Volatile Organic Compounds

Anmerkungen:

Date Completed 24.01.2024

Date Revised 24.01.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1021/acs.est.3c07958

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM366764993