Have environmental microplastics levels been overestimated?

Microplastics are everywhere, but new research points to a need to standardize measurements of microparticles. The amount of microplastic particles in the atmosphere might be lower than some studies have suggested, possibly even by several orders of magnitude. The finding, published on 21 January in Nature¹, comes after a high-profile study, which was published in February, that suggested that the concentration of microplastics in the human brain might have been overestimated².

Cover photo: By NATURE