搜索结果: 1-15 共查到“大气物理学 organic aerosol”相关记录48条 . 查询时间(0.078 秒)
A secondary organic aerosol formation model considering successive oxidation aging and kinetic condensation of organic compounds: global scale implications
A secondary organic aerosol formation model successive oxidation aging organic compounds global scale
2011/2/25
The widely used two-product secondary organic aerosol (SOA) formation model has been extended in this study to consider the volatility changes of secondary organic gases (SOG) arising from the aging p...
A review of the anthropogenic influence on biogenic secondary organic aerosol
the anthropogenic influence biogenic secondary organic aerosol
2011/1/19
Because of the climate and air quality effects of organic aerosol, it is important to quantify the influence of anthropogenic emissions on the aerosol burden, both globally and regionally, and both in...
Major components of atmospheric organic aerosol in southern California as determined by hourly measurements of source marker compounds
atmospheric organic aerosol southern California source marker compounds
2010/12/28
We report the first hourly in-situ measurements of speciated organic aerosol (OA) composition in an urban environment. Field measurements were made in southern California at the University of Californ...
The sensitivity of secondary organic aerosol component partitioning to the predictions of component properties – Part 1: A systematic evaluation of some available estimation techniques
secondary organic aerosol component component properties estimation techniques
2010/11/29
A large number of calculations of the absorptive partitioning of organic compounds have been made using a number of methods to predict the component vapour pressures, p0, and activity coefficients, γi...
Technical Note: Vapor pressure estimation methods applied to secondary organic aerosol constituents from α-pinene oxidation: an intercomparison study
Vapor pressure estimation methods secondary organic aerosol constituents α-pinene oxidation
2010/8/16
We applied and compared seven vapor pressure estimation methods to the condensable compounds generated in the oxidation of α-pinene, as described by the state-of-the-art mechanism of the BOREAM model ...
Water-Soluble Organic Aerosol material and the light-absorption characteristics of aqueous extracts measured over the Southeastern United States
Water-Soluble Organic Aerosol material the light-absorption characteristics aqueous extracts the Southeastern United States
2010/8/13
Light absorption of fine particle (PM2.5) aqueous extracts between wavelengths of 200 and 800 nm were investigated from two data sets: 24-h Federal Reference Method (FRM) filter extracts from 15 South...
Quantitative estimates of the volatility of ambient organic aerosol
ambient organic aerosol a tandem thermodenuder-aerosol mass spectrometer system Mexico City
2010/8/13
Measurements of the sensitivity of organic aerosol (OA, and its components) mass to changes in temperature were recently reported by Huffman et al.~(2009) using a tandem thermodenuder-aerosol mass spe...
Investigation of the sources and processing of organic aerosol over the Central Mexican Plateau from aircraft measurements during MILAGRO
organic aerosol the Central Mexican Plateau aircraft measurements MILAGRO
2010/8/13
Organic aerosol (OA) represents approximately half of the submicron aerosol in Mexico City and the Central Mexican Plateau. This study uses the high time resolution measurements performed onboard the ...
Insights into secondary organic aerosol formed via aqueous-phase reactions of phenolic compounds based on high resolution mass spectrometry
secondary organic aerosol aqueous-phase reactions phenolic compounds high resolution mass spectrometry
2010/8/13
Recent work has shown that aqueous-phase reactions of phenolic compounds – phenol (C6H6O), guaiacol (C7H8O2), and syringol (C8H10O3) – can form secondary organic aerosol (SOA) at high yields. Here we ...
CCN predictions using simplified assumptions of organic aerosol composition and mixing state: a synthesis from six different locations
CCN predictions organic aerosol composition a synthesis six different locations
2010/8/13
An accurate but simple quantification of the fraction of aerosol particles that can act as cloud condensation nuclei (CCN) is needed for implementation in large-scale models. Data on aerosol size dist...
Organic aerosol components observed in Northern Hemispheric datasets from Aerosol Mass Spectrometry
Organic aerosol components Northern Hemispheric Aerosol Mass Spectrometry
2010/8/13
In this study we compile and present results from the factor analysis of 43 Aerosol Mass Spectrometer (AMS) datasets (27 of the datasets are reanalyzed in this work). The components from all sites, wh...
Aged organic aerosol in the Eastern Mediterranean: the Finokalia Aerosol Measurement Experiment – 2008
Aged organic aerosol the Eastern Mediterranean the Finokalia Aerosol Measurement Experiment–2008
2010/8/12
Aged organic aerosol (OA) was measured at a remote coastal site on the island of Crete, Greece during the Finokalia Aerosol Measurement Experiment-2008 (FAME-2008), which was part of the EUCAARI inten...
Elemental analysis of chamber organic aerosol using an aerodyne high-resolution aerosol mass spectrometer
Elemental analysis chamber organic aerosol an aerodyne high-resolution aerosol mass spectrometer
2010/8/12
The elemental composition of laboratory chamber secondary organic aerosol (SOA) from glyoxal uptake, α-pinene ozonolysis, isoprene photooxidation, single-ring aromatic photooxidation, and naphthalene ...
Characterization of oligomers from methylglyoxal under dark conditions: a pathway to produce secondary organic aerosol through cloud processing during nighttime
oligomers methylglyoxal dark conditions secondary organic aerosol cloud processing nighttime
2010/8/12
Aqueous-phase oligomer formation from methylglyoxal, a major atmospheric photooxidation product, has been investigated in a simulated cloud matrix under dark conditions. The aim of this study was to e...
Widening the gap between measurement and modelling of secondary organic aerosol properties?
gap measurement modelling secondary organic aerosol properties
2010/3/16
The link between measured sub-saturated hygroscopicity and cloud activation potential of secondary organic aerosol particles produced by the chamber photo-oxidation of α-pinene in the presence or abse...