Surface snow samples were collected in different sites of Ankara in the winter of 2002 to investigate their concentrations of Polycyclic Aromatic Hydrocarbons (PAHs). The collected samples were pre-concentrated by Solid Phase Extraction (SPE) and analyzed by Gas Chromatography-Mass Spectrometry (GC-MS). Extraction procedure and analysis parameters were optimized and a sampling apparatus for collection of surface snow samples was developed. Phenanthrene was found to be dominant at all sites examined. The major sources of PAHs were identified as domestic heating, industrial activities and vehicle emissions. Core sampling was also performed to investigate the vertical profile of PAHs.