Ultrafine Particles Emitted through Routine Operation of a Hairdryer

Particulate matter is a large concern for human health. Fine and ultrafine particulate has been shown to negatively impact health; example, it causes cardiopulmonary diseases. Current regulation targets the size of particles, but composition also impacts toxicity. Indoor sources air pollution pose unique challenges health due potential exposure high concentrations in confined spaces. In this work, six hairdryers were each operated within plexiglass chamber, their emissions analyzed with transmission electron microscopy energy-dispersive spectroscopy. All found emit iron, carbon, copper. addition, from two primarily contained silver nanoparticles range (<100 nm). The particle emission rates that did not contain measured be lower than by gas stoves electric burners. Based on size, these particles can either remain lung or enter bloodstream after inhalation potentially cause long-term effects.