Secondary organic aerosols: formation potential and ambient data.
Sci Total Environ
; 205(2-3): 167-78, 1997 Oct 20.
Article
em En
| MEDLINE
| ID: mdl-9372628
ABSTRACT
Organic aerosols comprise a significant fraction of the total atmospheric particle loading and are associated with radiative forcing and health impacts. Ambient organic aerosol concentrations contain both a primary and secondary component. Herein, fractional aerosol coefficients (FAC) are used in conjunction with measurements of volatile organic compounds (VOC) to predict the formation potential of secondary organic aerosols (SOA) in the Lower Fraser Valley (LFV) of British Columbia. The predicted concentrations of SOA show reasonable accord with ambient aerosol measurements and indicate considerable seasonal variability in SOA potential. Particulate carbon contributes only approx. 3% of total carbon concentrations in the LFV, and it is shown that variability in total carbon concentrations is significantly larger than variability in gas/particle partitioning.
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Base de dados:
MEDLINE
Assunto principal:
Compostos Orgânicos
/
Monitoramento Ambiental
/
Aerossóis
/
Poluição do Ar
Limite:
Humans
País/Região como assunto:
America do norte
Idioma:
En
Ano de publicação:
1997
Tipo de documento:
Article