Work

Particle Size Relationships at the Fresno Supersite

Year: 2002

Type: article

Abstract: Aerosol size distributions are presented for a winter intensive study at the Fresno Supersite. The size distributions were consistent with and predictive for continuous PM2.5 measured by beta attenuation. They varied temporally with respect to source type and intensity, with the smallest mean diameters associated with high NOx concentrations during weekday morning rush hours. Conversely, small and large particle and black carbon (BC) concentrations were higher during Sunday and weekday evenings in response to traffic and residential wood combustion emissions. Ambient PM2.5 light scattering (Bsp) was precisely but systematically underestimated during winter, probably because of heating in the sample shelter.

Source: Journal of the Air & Waste Management Association

DOI: 10.1080/10473289.2002.10470817

Authors: John G. Watson, Judith C. Chow, Douglas H. Lowenthal, Mark R. Stolzenburg, Nathan M. Kreisberg, Susanne V. Hering

Institutions: Desert Research Institute, Aerosol Dynamics (United States)

Language: English

Topic: Atmospheric chemistry and aerosols

Subfield: Atmospheric Science

Field: Earth and Planetary Sciences

Domain: Physical Sciences

SDG: Climate action

Open Access status: bronze

Funders: California Air Resources Board, National Oceanic and Atmospheric Administration