Environ. Sci. Technol. 2008, 42, 6580–6586
Size-Resolved Source Apportionment of Airborne Particle Mass in a Roadside Environment SARAH G. RIDDLE,† MICHAEL A. ROBERT,‡ CHRIS A. JAKOBER,§ MICHAEL P. HANNIGAN,| AND M I C H A E L J . K L E E M A N * ,‡ Department of Chemistry, Department of Civil and Environmental Engineering, Agriculture and Environmental Chemistry Graduate Group, University of California, Davis, 1 Shields Avenue, Davis, California 95616, and Department of Mechanical Engineering, University of Colorado, Boulder, Colorado
Received November 9, 2007. Revised manuscript received May 28, 2008. Accepted June 10, 2008.
Airborne particulate hopanes, steranes, and polycyclic aromatic hydrocarbons (PAHs) were measured in six size fractions
