In:
Chemie in unserer Zeit, Wiley, Vol. 41, No. 3 ( 2007-06), p. 220-230
Abstract:
The composition of the aerosol and its physical and chemical characteristics affect the behavior of the aerosols and its effects on the chemistry of the atmosphere, the climate of the earth and the human health. Atmospheric particles originate either from anthropogenic or natural sources and are emitted into the atmosphere directly (primary particles), or are formed from inorganic trace gases or gaseous organic substances (secondary particles). As soon as particles are in air, they can change size, composition and concentration due to various processes. The most important processes are coagulation, gas particle distribution, particle phases chemistry (e.g. oxidation, polymerization) and deposition. Beside some inorganic trace components tropospheric particles consist generally of sulfate, nitrate, ammonium, metals, water as well as elemental carbon (EC) and organic carbon compounds (OC). Although substantial progress in the characterisation of aerosols was made in recent time, the knowledge of the characteristics and the composition of the aerosol particles is still relatively limited. This applies in particular to the composition of the organic fraction of the particles which has a strong influence on the physicochemical, climate and for health‐relevant characteristics of the particles.
Type of Medium:
Online Resource
ISSN:
0009-2851
,
1521-3781
DOI:
10.1002/ciuz.200700414
Language:
English
Publisher:
Wiley
Publication Date:
2007
detail.hit.zdb_id:
2006650-8
detail.hit.zdb_id:
6904-8
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