Fate of 1 to 6 nm Candle Combustion Nanoparticles in Indoor Atmospheric Environments.

ABSTRACT: Nano-organic carbon (NOC: 1-6 nm) particles are emitted during combustion processes and remain understudied down to their smallest sizes in indoor environments. We investigate the persistence of atmospheric nanoparticles in the NOC size range indoors during scented candle combustion in a residential test house. Our results indicate that atmospheric nanoparticles in the 1-6 nm size range dominate indoor particle concentrations, constituting up to ∼65% of total particles. The fate of these nanoparticles in indoor air is mainly governed by their apparent emission rates and the coagulation scavenging potential of the indoor atmosphere, parametrized through the net coagulation sink and aerosol Fuchs surface area. To better characterize this, we introduce a dimensionless parameter (S)─the

SUBMITTER: Patra SS 

PROVIDER: S-EPMC12810239 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature