Air Quality Impact and Physicochemical Aging of Biomass Burning Aerosols during the 2007 San Diego Wildfires

Air Quality Impact and Physicochemical Aging of Biomass Burning Aerosols during the 2007 San Diego Wildfires

Intense wildfires burning >360 000 acres in San Diego during October, 2007 provided a unique opportunity to study the impact of wildfires on local air quality and biomass burning aerosol (BBA) aging. The size-resolved mixing state of individual particles was measured in real-time with an aerosol...

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Veröffentlicht in:Environmental science & technology 2013-07, Vol.47 (14), p.7633-7643
Hauptverfasser: Zauscher, Melanie D, Wang, Ying, Moore, Meagan J. K, Gaston, Cassandra J, Prather, Kimberly A
Format: Artikel
Sprache:eng
Schlagworte:
Aerosol from biomass burning
Aerosols
Aging
Air - analysis
Applied sciences
Atmospheric pollution
Biomass
California
Dispersed sources and other
Exact sciences and technology
Fires
Forest & brush fires
Humidity
Mass Spectrometry
Outdoor air quality
Pollution
Pollution sources. Measurement results
Potassium
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Zusammenfassung:Intense wildfires burning >360 000 acres in San Diego during October, 2007 provided a unique opportunity to study the impact of wildfires on local air quality and biomass burning aerosol (BBA) aging. The size-resolved mixing state of individual particles was measured in real-time with an aerosol time-of-flight mass spectrometer (ATOFMS) for 10 days after the fires commenced. Particle concentrations were high county-wide due to the wildfires; 84% of 120–400 nm particles by number were identified as BBA, with particles
ISSN:0013-936X
1520-5851
DOI:10.1021/es4004137