Biodiesel Exhaust Particle Airway Toxicity and the Role of Polycyclic Aromatic Hydrocarbons

Scientists examined particle toxicity within the lung epithelium and the role of polycyclic aromatic hydrocarbons (PAHs). Exhaust particles from a 20% blend of fatty acid methyl ester biodiesel had little impact on primary airway epithelial toxicity compared to fossil diesel-derived particles but did result in an altered profile of PAHs.