Assertion: organic aerosol | /r/HasProperty | emitted
Facets:
value: from the biosphere
type: LOCATION
value: directly
type: MANNER
Source sentences:
text: 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.