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Airborne microplastics in Europe's largest plastic-covered semi-arid agricultural region. A pilot study

Original title: Airborne microplastics in Europe’s largest plastic-covered semi-arid agricultural region. A pilot study

Environment International 2026
Laura Cortés-Corrales, Mengyan Huang, Harshit Sahai, Alfredo Alcayde, Chen Chia Wang, Marı́a Dolores Hernando, Amadeo R. Fernández-Alba, Maria Jesús Martinez Bueno

Summary

Researchers found that the air in and around massive plastic-covered farms in Spain (used to grow produce like tomatoes and peppers) contains tiny plastic particles, mostly tiny fibers, and nearly a third were small enough to potentially be breathed deep into your lungs. Greenhouse air and nearby urban areas had more of this plastic pollution than natural areas nearby, suggesting that people working in or living near these intensive farming regions may face extra exposure to airborne microplastics — though this early study doesn't yet tell us how much this affects health.

). Fibres were the dominant particle type in all environments (70-83%), and 31% of particles were < 100 µm, highlighting a potentially inhalable fraction. Polymer composition also varied by site: PET was predominant overall (46-69%), PE was relatively enriched inside greenhouses (27%), and PP was more common in urban samples (24%). Contamination factor analysis indicated mainly moderate to considerable pollution, with higher average contamination in greenhouse and urban areas than in the natural area. These findings provide baseline evidence for exposure assessment in plastic-intensive agricultural landscapes.

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