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A turbine-engine-particulate sampler was designed to maximize overall collected mass for subsequent polynuclear aromatic (PNA) compounds and polycyclic aromatic material analyses. Special design features significantly reduce sample degradation problems and constrain total sampling time to 30 minutes. The sampling concept is a result of a comprehensive literature search and thorough analysis. This PNA sampler extracts the exhaust sample through a multiple-point probe, transports the sampler to a conditioner, and collects the particles onto a glass-fiber filter. The conditioner not only reduces the sample temperature, permitting condensation, but also simulates the atmospheric dilution process. A bypass circuit permits sampler operation without actually collecting particles.