Indoor Nanoparticle Emissions and Exposures during Heat-Based Hair Styling Activities.

ABSTRACT: Heat-based hair styling activities, such as straightening, curling, and waving, emit volatile and semivolatile chemicals when used with hair care products like creams, lotions, and serums. This study investigates the formation of airborne nanoparticles (6-500 nm) during such activities as a previously unrecognized source of indoor air pollution. Experiments conducted in the Purdue zEDGE Test House revealed that hair styling at temperatures above 300 °F produced indoor nanoparticle concentrations ranging from 10,000 to over 100,000 particles cm^-3, with sub-100 nm particles typically accounting for more than 95% of total number concentrations at temperatures exceeding 360 °F. The primary mechanism for nanoparticle formation was heat-driven volatilization of cyclic siloxanes and va

SUBMITTER: Liu J 

PROVIDER: S-EPMC12369009 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature