β-caryophyllinic acid: An atmospheric tracer forβ-caryophyllene secondary organic aerosol
نویسندگان
چکیده
منابع مشابه
Influence of aerosol acidity on the chemical composition of secondary organic aerosol from β-caryophyllene
The secondary organic aerosol (SOA) yield of βcaryophyllene photooxidation is enhanced by aerosol acidity. In the present study, the influence of aerosol acidity on the chemical composition of β-caryophyllene SOA is investigated using ultra performance liquid chromatography/electrospray ionization-time-of-flight mass spectrometry (UPLC/ESI-TOFMS). A number of first-, secondand higher-generation...
متن کاملRelating CCN activity, volatility, and droplet growth kinetics of β-caryophyllene secondary organic aerosol
This study investigates the droplet formation characteristics of secondary organic aerosol (SOA) formed during the ozonolysis of sesquiterpene β-caryophyllene (with and without hydroxyl radicals present). Emphasis is placed on understanding the role of semi-volatile material on Cloud Condensation Nucleus (CCN) activity and droplet 5 growth kinetics. Aging of β-caryophyllene SOA significantly af...
متن کاملNonequilibrium atmospheric secondary organic aerosol formation and growth.
Airborne particles play critical roles in air quality, health effects, visibility, and climate. Secondary organic aerosols (SOA) formed from oxidation of organic gases such as α-pinene account for a significant portion of total airborne particle mass. Current atmospheric models typically incorporate the assumption that SOA mass is a liquid into which semivolatile organic compounds undergo insta...
متن کاملEquilibration timescale of atmospheric secondary organic aerosol partitioning
[1] Secondary organic aerosol (SOA) formed from partitioning of oxidation products of anthropogenic and biogenic volatile organic compounds (VOCs) accounts for a substantial portion of atmospheric particulate matter. In describing SOA formation, it is generally assumed that VOC oxidation products rapidly adopt gas-aerosol equilibrium. Here we estimate the equilibration timescale, teq, of SOA ga...
متن کاملRelating CCN activity, volatility, and droplet growth kinetics of Î2-caryophyllene secondary organic aerosol
This study investigates the droplet formation characteristics of secondary organic aerosol (SOA) formed during the ozonolysis of sesquiterpene β-caryophyllene (with and without hydroxyl radicals present). Emphasis is placed on understanding the role of semi-volatile material on Cloud Condensation Nucleus (CCN) activity and droplet growth kinetics. Aging of β-caryophyllene SOA significantly affe...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2007
ISSN: 0094-8276
DOI: 10.1029/2006gl028827