Secondary organic aerosol (original) (raw)
二次有機氣溶膠簡稱SOA，是大氣中的挥发性有机物或是半揮發性有機物因多次氧化後產物形成的氣溶膠，是空氣中懸浮粒子的主要成份之一。
| Property | Value |
|---|---|
| dbo:abstract | A secondary organic aerosol (SOA) is a molecule produced via oxidation over several generations of a parent organic molecule. In contrast to primary organic aerosols, which are emitted directly from the biosphere, secondary organic aerosols are either formed via homogeneous nucleation through the successive oxidation of gas-phase organic compounds, or through condensation on pre-existing particles. These gas-phase species exert high vapor pressures, meaning they are volatile and stable in the gas-phase. Upon oxidation, the increased polarity, and thus reduced volatility, of the molecules results in a reduction of vapor pressure. After sufficient oxidation, the vapor pressure is sufficiently low that the gas-phase compound partitions into the solid-phase, producing secondary organic matter (the particle phase of secondary organic aerosol). SOAs represent a significant proportion of aerosols contained in the troposphere. A common misconception is that the aerosol refers to the solid phase of the compound, where in reality, by definition, it is the combination of the gas- and solid-phases which constitute the aerosol. (en) 二次有機氣溶膠簡稱SOA，是大氣中的挥发性有机物或是半揮發性有機物因多次氧化後產物形成的氣溶膠，是空氣中懸浮粒子的主要成份之一。 (zh) |
| dbo:wikiPageExternalLink | http://eprints.whiterose.ac.uk/127939/1/Science6377_Lewis.pdf |
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| dbo:wikiPageWikiLink | dbr:Molecule dbr:Nucleation dbr:Gas dbr:Organic_compound dbc:Atmosphere_of_Earth dbr:Aerosol dbc:Atmospheric_dynamics dbc:Aerosols dbr:Chemical_polarity dbr:Biosphere dbr:Solid dbr:Oxidation dbr:Vapor_pressure dbr:Troposphere |
| dbp:wikiPageUsesTemplate | dbt:Cite_journal dbt:Organic-compound-stub dbt:Reflist dbt:Meteorology-stub |
| dcterms:subject | dbc:Atmosphere_of_Earth dbc:Atmospheric_dynamics dbc:Aerosols |
| rdfs:comment | 二次有機氣溶膠簡稱SOA，是大氣中的挥发性有机物或是半揮發性有機物因多次氧化後產物形成的氣溶膠，是空氣中懸浮粒子的主要成份之一。 (zh) A secondary organic aerosol (SOA) is a molecule produced via oxidation over several generations of a parent organic molecule. In contrast to primary organic aerosols, which are emitted directly from the biosphere, secondary organic aerosols are either formed via homogeneous nucleation through the successive oxidation of gas-phase organic compounds, or through condensation on pre-existing particles. These gas-phase species exert high vapor pressures, meaning they are volatile and stable in the gas-phase. Upon oxidation, the increased polarity, and thus reduced volatility, of the molecules results in a reduction of vapor pressure. After sufficient oxidation, the vapor pressure is sufficiently low that the gas-phase compound partitions into the solid-phase, producing secondary organic matter (en) |
| rdfs:label | Secondary organic aerosol (en) 二次有機氣溶膠 (zh) |
| owl:sameAs | wikidata:Secondary organic aerosol dbpedia-zh:Secondary organic aerosol https://global.dbpedia.org/id/2ENDQ |
| prov:wasDerivedFrom | wikipedia-en:Secondary_organic_aerosol?oldid=1113075351&ns=0 |
| foaf:isPrimaryTopicOf | wikipedia-en:Secondary_organic_aerosol |
| is dbo:wikiPageDisambiguates of | dbr:SOA |
| is dbo:wikiPageRedirects of | dbr:Secondary_organic_aerosols |
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| is foaf:primaryTopic of | wikipedia-en:Secondary_organic_aerosol |