1 LITERATUR REVIEW AND PARAMETRIC STUDY: INDOOR PARTICLE RESUSPENSION BY HUMAN ACTIVITY

Once an aerosol contaminant is introduced into an indoor environment, it can remain in the air, deposit on interior surfaces or attach to dust particles already present. Human activity, such as walking and cleaning, resuspends contaminated particles, regenerating airborne contaminants. This report is a literature review on the effects of human activity on particle re-suspension in indoor environment. A parametric investigation is also made on particle resuspension effects of potential mechanical, aerodynamic and electrostatic force components, due to human activity over the particle-containing reservoir. It is shown that combinations of mechanical-aero-electro forces from human activity, can lead to significant particle resuspension in indoor environment. Additional experimental and modeling work is recommended to quantify the influence of human activity on indoor particle resuspension. INDEX TERMS Resuspension, human activity, mechanical vibration, boundary drag force, electrostatic forc