♻️ Urban Air Packed With Micro- And Nanoplastics

Chinese researchers at the Institute of Earth Environment report that urban air in Guangzhou and Xi'an contains roughly 140,000–180,000 microplastic and nanoplastic particles per cubic metre—levels far higher than those previously measured and, the team says, up to a million times greater than estimates from traditional methods.

The study is also the first to detect nanoplastics as small as ~200 nanometres in complex environmental samples, identifying city atmospheres as primary reservoirs of plastic particulates and underlining the need to reassess how airborne plastic pollution is monitored.

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