Microplastics

Plastic dust in the wind

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Science  07 May 2021:
Vol. 372, Issue 6542, pp. 585-586
DOI: 10.1126/science.372.6542.585-f

Plastic pollution is ubiquitous throughout the environment, the endmember being microplastics generated from the breakdown of larger, more primary pieces. Brahney et al. investigated the sources of atmospheric microplastics using a combination of observations and atmospheric transport models. They found that the majority of microplastics in the air are derived from the fragmentation of plastics on roadways, with much smaller fractions coming from oceans and agricultural soils. This finding underscores the importance of controlling primary plastic pollution.

Proc. Natl. Acad. Sci. U.S.A. 118, e2020719118 (2021).

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