Air pollution and nanoplastics research explores the health implications of the smallest plastic particles now found in atmospheric samples worldwide. Studies reveal that nanoplastics can penetrate deep into respiratory tissues and potentially cross biological barriers, raising concerns about their interaction with cellular processes. The evidence suggests these ultra-small particles may have unique health impacts compared to larger microplastics or traditional air pollutants. Explore the cutting-edge research investigating nanoplastic air pollution and its potential implications for human health.