Can microplastics carrying smoke chemicals damage your lungs?
Yes. A 2025 study found that PAH chemicals bound to microplastics increase bioaccumulation and toxicity, causing mitochondrial damage and cell death in lung tissue.
What's actually in it
Microplastics in air and dust can carry polycyclic aromatic hydrocarbons (PAHs) on their surface. PAHs come from cooking, candles, vehicle exhaust, and industrial sources. When microplastics absorb these chemicals, they become more toxic than either would be alone.
What the research says
A 2025 study in Environ Pollut found PAH-contaminated microplastics enhanced bioaccumulation and toxicity in lung epithelial cells. The combination caused mitochondrial damage and cell death at rates higher than either pollutant alone.
Reduce indoor microplastics and PAH exposure by using HEPA filtration, choosing natural fibers, and avoiding burning candles or incense.
The research at a glance
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