Jamiu Adetayo Adeniran, Rafiu Olasunkanmi Yusuf and Emmanuel Olusola Oke

DOI: 10.14456/sjst-psu.2019.25

pp. 207 - 215

Abstract

This study investigated the dynamics of aerosols emitted from household spray products in terms of deposition rate,
deposition velocity, and coagulation. Thirty brands of spray products were selected with respect to their uses. Time variations of
particle size distribution and concentrations resulting from aerosol emission from the spray products were measured using the
MetOne^TM GT 321 particle counter. Deposition rates were estimated as a function of air exchange rate. Coagulation rates of
singlet, doublet, and triplet particles were estimated using Smoluchowski’s equation. Average deposition rates for 0.3, 0.5, 1.0,
2.0, and 5.0 µm aerosols were 0.154, 0.157, 0.159, 0.165, and 0.170 min^-1
, respectively. The results provide useful information
about the fate of aerosols released from the spray products and can be used in indoor air quality modeling and exposure
assessment studies.

Keywords

• aerosols
• coagulation
• deposition
• indoor air quality
• spray products