[PDF] Top 20 Aqueous phase processing of secondary organic aerosols
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Aqueous phase processing of secondary organic aerosols
... ization of organic molecules, liquid methanol ...pressure of 55 psi at 300 ◦ ...temperatures of drying and auxiliary gases, corona discharge intensity and voltage, mass range, ... See full document
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Constraining condensed-phase formation kinetics of secondary organic aerosol components from isoprene epoxydiols
... concentration of 55 M to derive a third-order rate con- stant with an explicit water ...reaction of 2-methyltetrol (Reaction R1) and 2 × 10 −4 M −2 s −1 for the overall formation reaction of IEPOX- ... See full document
10
Stable carbon isotope ratios of ambient secondary organic aerosols in Toronto
... ratios of nitrophenols formed from unprocessed emissions can be estimated from the isotope ra- tio of the emissions and the KIE (Table ...gas phase photooxidation of toluene in laboratory ... See full document
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Glyoxal processing by aerosol multiphase chemistry: towards a kinetic modeling framework of secondary organic aerosol formation in aqueous particles
... field of experimental ...into aqueous solutions of inorganic ...formation of oligomers and nitrogen-containing ...reaction of the SO − 4 radical and alkyl radicals (Noziere et ... See full document
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Estimating the influence of the secondary organic aerosols on present climate using ECHAM5-HAM
... original model version, “organic carbon” refers to POA plus SOA formed by assum- ing a fixed 15% SOA yield from the monoterpene emissions estimates of Guenther et al. (1995), with immediate non-volatile SOA ... See full document
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The Secondary Organic Aerosol Processor (SOAP v1.0) model: a unified model with different ranges of complexity based on the molecular surrogate approach
... the concentrations of inorganic ions are computed with the ISORROPIA model (Nenes et al., 1998) for a specified relative humidity (RH). As in H 2 O, some species do not have a molecular structure attached (AnClP, ... See full document
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Mass yields of secondary organic aerosols from the oxidation of α-pinene and real plant emissions
... particle phase, resulting in a lower volatility of ...Formation of low- volatility components of SOA formed from photooxidation of α-pinene (Paulsen et ...completion of ... See full document
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In-cloud processes of methacrolein~under simulated conditions – Part 2: Formation of Secondary Organic Aerosol
... the aqueous phase (hydrolysis, further oxidation, polymerisation ...particle phase upon droplet evaporation, leading to SOA mass production (Kanakidou et ... See full document
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Secondary organic material formed by methylglyoxal in aqueous aerosol mimics – Part 1: Surface tension depression and light-absorbing products
... methylglyoxal stock solution was pH=2(±1) when tested with pH paper, and the re- action mixtures were pH=2(±1), without buffering or further addition of acid. This is within the range of pH relevant to ... See full document
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Heterogeneous oxidation of saturated organic aerosols by hydroxyl radicals: Uptake kinetics and condensed-phase products
... m/z 44 in the ToF-AMS data suggests that carboxylic acids were also being formed, possibly through secondary reactions, e.g., OH-initiated oxidation of aldehydes. It is unlikely that OH would attack the BES ... See full document
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Modeling kinetic partitioning of secondary organic aerosol and size distribution dynamics: representing effects of volatility, phase state, and particle-phase reaction
... condensation of very low volatility organic vapors produced by gas-phase oxidation (Donahue et ...sorption of semivolatile organic vapors into preexisting par- ticle organic ... See full document
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Aqueous-phase mechanism for secondary organic aerosol formation from isoprene: application to the Southeast United States and co-benefit of SO<sub>2</sub> emission controls
... with aqueous-phase isoprene SOA chemistry are shown in red, and re- sults from a simulation with the Pye et ...conditions of temperature and pressure (STP: 273 K; 1 atm), denoted s m −3 ... See full document
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Primary and secondary organic aerosol origin by combined gas-particle phase source apportionment
... Jimenez, J. L., Canagaratna, M. R., Donahue, N. M., Prevot, A. S. H., Zhang, Q., Kroll, J. H., DeCarlo, P. F., Allan, J. D., Coe, H., Ng, N. L., Aiken, A. C., Docherty, K. S., Ulbrich, I. M., Grieshop, A. P., Robinson, ... See full document
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Reactive processing of formaldehyde and acetaldehyde in aqueous aerosol mimics: surface tension depression and secondary organic products
... in aqueous solutions containing an increasing proportion of seawater (up to 100 %), but the opposite is true for acetaldehyde (Zhou and Mop- per, ...gas phase for 24 h before the surface tension ... See full document
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Formation of secondary aerosols: impact of the gas-phase chemical mechanism
... tributed. PM coarse is totally attributed to mineral dust and PM 2.5 is speciated into black carbon (20%), mineral dust (35%) and primary organic aerosol (POA, 45%). Biogenic emissions are computed as in Simpson ... See full document
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Reactive processing of formaldehyde and acetaldehyde in aqueous aerosol mimics: surface tension depression and secondary organic products
... dation of other VOCs (Seinfeld and Pandis, ...schematic of the different reaction mechanisms discussed in this ...in aqueous ammonium sulfate solutions (Nozi`ere et ...form organic salts in ... See full document
13
Phase, composition and growth mechanism for secondary organic aerosol from the ozonolysis of α-cedrene
... cedrene SOA formed in the flow reactor under dry conditions was measured in real time using a Xevo TQS triple quadrupole mass spectrometer (Waters) equipped with a com- mercial DART ion source (IonSense, DART SVP with ... See full document
54
Determination of the biogenic secondary organic aerosol fraction in the boreal forest by AMS and NMR measurements
... on organic composition, in agreement with findings of previous investigations at this ...types of oxygenated organic components, one more and one less oxidized, ap- peared to be particularly ... See full document
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Determination of the biogenic secondary organic aerosol fraction in the boreal forest by NMR spectroscopy
... tra of ethylene glycol butyl ether and of 2-butoxyethyl acetate (Sigma-Aldrich online NMR ...set of samples ...VOCs of toxicological inter- est in urban areas (Gallego et ... See full document
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Gas phase precursors to anthropogenic secondary organic aerosol: detailed observations of 1,3,5-trimethylbenzene photooxidation
... rate of 30–52 ...rate of 200–275 sccm via an insulated 2 m long Teflon line and a PTFE critical ...electrodes of the cell was varied to facilitate collision-induced dissociation of the ionised ... See full document
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