Temporal Archive of Atmospheric Microplastic Deposition Presented in Ombrotrophic Peat.

The proportion of MP less than 20 μm shows a slightly increasing trend since 1980 ( SI ), potentially due to an increase in creation/emission of smaller MP directly into the atmosphere from human activities (e.g., laundry (dryer) emissions, ineffective incineration, agricultural practices 43 − 45 ) or/and an increase in macroplastic waste loss to the environment that has degraded over time (in situ or in transport) resulting in increased MP and an increase in atmospheric transport.

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