Potential infection risk assessment of improper bioaerosol experiment operation in one BSL-3 laboratory based on the improved Wells-Riley method

Transmission mitigation of COVID-19: Exhaled contaminants removal and energy saving in densely occupied space by impinging jet ventilation

“…The infection probability P is calculated following Wells-Riley model [ 64 ], which introduces the concept of quanta as the dose of pathogens causing infection [ 6 , 28 ]. It is expressed as Eq.…”

“…The local infection-risk based on tracer gas is as follows: where S CO2 is the local mass concentration of the tracer gas from CFD results, θ is the permeability coefficient of masks (0.05 [ 28 ]). The parameters to calculate P in this study are listed in Table 3 .…”

“…Wang et al [ 20 ] simulated the exhaled droplet distribution in an intensive care unit. Furthermore, Liu et al [ 28 ] evaluated infection risk in a BSL-3 laboratory via embedding the Wells-Riley model into a CFD model.…”

Tempo-spatial infection risk assessment of airborne virus via CO2 concentration field monitoring in built environment

“…Further, by integrating the Wells-Riley model with Computational Fluid Dynamics (CFD) simulation, the spatial distribution of viral aerosol in buildings [ 19 , 20 ] and infection risks can be predicted or retrospected [ 13 , 21 , 22 ]. The air flow and therefore viral aerosols movement can be simulated precisely with accurate boundary condition settings.…”

“…The concept of normalized aerosol (used as tracer gas) concentration was brought forward to represent the concentration distribution of infectious particles in space. Liu [ 20 ] introduced the indoor air-age isosurface map to analyze the spatial distribution of infection risk in a BSL-3 laboratory. CFD simulation results demonstrated high-level consistency of high infection risk locations with the older air-age region.…”