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Temporal Archive of Atmospheric Microplastic Deposition Presented in Ombrotrophic Peat

Environmental Science & Technology Letters 2021 50 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Gaël, Le Roux Deonie Allen, Deonie Allen, Steve Allen, Deonie Allen, Deonie Allen, Steve Allen, Gaël, Le Roux Steve Allen, Steve Allen, Steve Allen, Steve Allen, Steve Allen, Deonie Allen, Deonie Allen, Deonie Allen, Steve Allen, Deonie Allen, Vernon R. Phoenix, Gaël, Le Roux Steve Allen, Steve Allen, Deonie Allen, Gaël, Le Roux Deonie Allen, Gaël, Le Roux Deonie Allen, Deonie Allen, Deonie Allen, Steve Allen, Deonie Allen, Gaël, Le Roux Gaël, Le Roux Vernon R. Phoenix, Vernon R. Phoenix, Vernon R. Phoenix, Vernon R. Phoenix, Vernon R. Phoenix, Gaël, Le Roux Steve Allen, Gaël, Le Roux Gaël, Le Roux Vernon R. Phoenix, Gaël, Le Roux Steve Allen, Deonie Allen, Steve Allen, Deonie Allen, Deonie Allen, Gaël, Le Roux Steve Allen, Gaël, Le Roux Steve Allen, Gaël, Le Roux Gaël, Le Roux Gaël, Le Roux Vernon R. Phoenix, Deonie Allen, Deonie Allen, Deonie Allen, Deonie Allen, Deonie Allen, Anaëlle Simonneau, Gaël, Le Roux Gaël, Le Roux Didier Galop, Gaël, Le Roux Deonie Allen, Gaël, Le Roux Vernon R. Phoenix, Gaël, Le Roux Steve Allen, Gaël, Le Roux Steve Allen, Gaël, Le Roux Gaël, Le Roux Steve Allen, Deonie Allen, Steve Allen, Vernon R. Phoenix, Vernon R. Phoenix, Steve Allen, Deonie Allen, Gaël, Le Roux Gaël, Le Roux Gaël, Le Roux Anaëlle Simonneau, Gaël, Le Roux Gaël, Le Roux Gaël, Le Roux Anaëlle Simonneau, Deonie Allen, Deonie Allen, Steve Allen, Vernon R. Phoenix, Steve Allen, Didier Galop, Didier Galop, Gaël, Le Roux Gaël, Le Roux Gaël, Le Roux Gaël, Le Roux Deonie Allen, Steve Allen, Steve Allen, Steve Allen, Deonie Allen, Steve Allen, Gaël, Le Roux

Summary

Historical atmospheric microplastic deposition was reconstructed using an ombrotrophic peat archive, demonstrating that this precipitation-fed peat record captures the temporal trend of increasing atmospheric microplastic pollution over recent decades.

Study Type Environmental

Ombrotrophic peatland-fed solely from atmospheric deposition of nutrients and precipitation-provide unique archives of atmospheric pollution and have been used to illustrate trends and changes in atmospheric trace element composition from the recent decadal to the Holocene period. With the acknowledgment of atmosphere plastic pollution, analysis of ombrotrophic peat presents an opportunity to characterize the historical atmospheric microplastic pollution prevalence. Ombrotrophic peatland is often located in comparatively pristine mountainous and boreal areas, acting as sentinels of environmental change. In this paired site study, a <i>Sphagnum</i> ombrotrophic peat record is used for the first time to identify the trend of atmospheric microplastic pollution. This high altitude, remote location ombrotrophic peat archive pilot study identifies microplastic presence in the atmospheric pollution record, increasing from <5(±1) particles/m<sup>2</sup>/day in the 1960s to 178(±72) particles/m<sup>2</sup>/day in 2015-2020 in a trend similar to the European plastic production and waste management. Compared to this catchment's lake sediment archive, the ombrotrophic peat core appears to be effective in collecting and representing atmospheric microplastic deposition in this remote catchment, collecting microplastic particles that are predominantly ≤20 μm. This study suggests that peat records may be a useful tool in assessing the past quantities and trends of atmospheric microplastic.

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