On the importance of the flow field in inexpensive optical aerosol particle counting and sizing.

ABSTRACT: Optical Particle Sizers (OPSs) are widely used for measuring size distributions of particles larger than ca. 0.2 μm. To do so, they use mirrors or lenses to gather light scattered by particles passing through a focused beam, directing it to a photo-detector that produces electric pulses from the scattering events. Considering their ability to provide near real-time measurements with minimal attendance and maintenance, and to expand the networks of Particulate Matter (PM) monitoring, several manufacturers have developed low-cost and compact OPS systems. Despite that low-cost OPSs are already available in the market and employed for monitoring PM concentrations, their reported values typically deviate from those of high-end instruments, warranting further efforts to improve their performance

SUBMITTER: Loizidis C 

PROVIDER: S-EPMC12511441 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature