Despite being a recently recognized environmental concern, the terrestrial dispersion of airborne microplastics (MPs) pollution remains uncertain. This study investigates airborne microplastic contamination in industrial zones and a landfill area of Ankara (Türkiye) using the epiphytic lichen Xanthoria parietina (L.) Th. Fr. as a passive bioindicator. Lichen samples were collected from three organized industrial zones, a municipal landfill. Microplastics were extracted using a modified wet perox