Sampling and analysis of polycyclic aromatic hydrocarbons (PAH) from two-stroke chain-saw engines

A sampling and analysis method for PAH from two-stroke engines is described. The method, which uses a standard glass fiber filter with a back-up section of Amberlite XAD-2 for sampling and GC or GC-MS for analysis, is suitable for both emission studies and occupational studies during logging. Filters and XAD-2 are desorbed with cyclohexane in an ultrasonic bath. After separation on a silica-gel micro column, the samples are submitted to analyses by capillary GC. The method is simple and covers both gaseous and particulate PAH. Naphthalene and alkyl substituted naphthalenes are also quantified.