Impact of secondary and primary particulate matter (PM) sources on the enhanced light absorption by brown carbon (BrC) particles in central Los Angeles

Impact of secondary and primary particulate matter (PM) sources on the enhanced light absorption by brown carbon (BrC) particles in central Los Angeles

In this study, we investigated aerosol chemical composition, spectral properties of aerosol extracts, and source contributions to the aerosol light-absorbing brown carbon (BrC) in central Los Angeles from July 2018 to March 2019, during warm and cold seasons. Spectrophotometric measurements (water a...

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Veröffentlicht in:The Science of the total environment 2020-02, Vol.705, p.135902-135902, Article 135902
Hauptverfasser: Soleimanian, Ehsan, Mousavi, Amirhosein, Taghvaee, Sina, Shafer, Martin M., Sioutas, Constantinos
Format: Artikel
Sprache:eng
Schlagworte:
BrC light absorption
PCA-MLR
Source apportionment
Spectrophotometric analysis
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Zusammenfassung:In this study, we investigated aerosol chemical composition, spectral properties of aerosol extracts, and source contributions to the aerosol light-absorbing brown carbon (BrC) in central Los Angeles from July 2018 to March 2019, during warm and cold seasons. Spectrophotometric measurements (water and methanol extracts; 200 
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2019.135902