Environ. Sci. Technol. 1998, 32, 1369-1377
Iso- and Anteiso-Alkanes: Specific Tracers of Environmental Tobacco Smoke in Indoor and Outdoor Particle-Size Distributed Urban Aerosols ILIAS G. KAVOURAS, NIKOLAOS STRATIGAKIS, AND EURIPIDES G. STEPHANOU* Environmental Chemical Processes Laboratory (ECPL), Division of Environmental and Analytical Chemistry, Department of Chemistry, University of Crete, 71409 Heraclion, Greece
Branched iso- and anteiso-alkanes were conjointly used, with n-alkanes and PAHs, as specific molecular markers to trace environmental tobacco smoke (ETS) in particlesized aerosols collected in the indoor and outdoor urban atmosphere. GC/MS and GC-FID were used for the determination of iso-, anteiso-, and n-alkanes and PAHs. The branched alkanes (ranging from C29 to C33) were detected only in particles in the accumulation range mode (7.2 µm, second stage 7.2-3.0 µm, third stage 3.0-1.5 µm, fourth stage 1.5-0.96 µm, fifth stage 0.96-0.5 µm, and backup filter
