Table 2.

Parameters related to long-range airborne.

Parameter	Symbol	Value	Source
Deposition rate	RD	0.1 min−1	Assumed
Volume of small particles by breathing	$V_{vb}^{\prime }$	$1.02\times {10}^{-10}\mathrm{mL}$	[23,24,25,26,27,28,29]
Volume of small particles by talking	$V_{vt}^{\prime }$	$1.47\times {10}^{-7}\mathrm{mL}$	[23,24,25,26,27,28,29]
Volume of small particles by coughing	$V_{vc}^{\prime }$	$1.65\times {10}^{-7}\mathrm{mL}$	[23,24,25,26,27,28,29]
Volume of small particles by sneezing	$V_{vs}^{\prime }$	$1.27\times {10}^{-6}\mathrm{mL}$	[23,24,25,26,27,28,29]
Volume of large droplets by breathing	$V_{vb}^{\prime \prime }$	$0\mathrm{mL}$	[23,24,25,26,27,28,29]
Volume of large droplets by talking	$V_{vt}^{\prime \prime }$	$5.15\times {10}^{-3}\mathrm{mL}$	[23,24,25,26,27,28,29]
Volume of large droplets by coughing	$V_{vc}^{\prime \prime }$	$6.15\times {10}^{-3}\mathrm{mL}$	[23,24,25,26,27,28,29]
Volume of large droplets by sneezing	$V_{vs}^{\prime \prime }$	$4.75\times {10}^{-2}\mathrm{mL}$	[23,24,25,26,27,28,29]
Frequency of breath	Fb	15 min−1	[30]
Frequency of coughing (infected person)	Fc	22 h−1	[31]
Frequency of sneezing (infected person)	Fs	5 h−1	[32]
Duration per cough	Dc	1 s	Assumed
Duration per sneeze	Ds	3 s	Assumed
Percentage of time on talking with others	Pt	10%	Monitored
Viral shedding rate	Rs	$1.5\times {10}^7\mathrm{TCID}50/\mathrm{day}$	[19,24,25,31,33]
Virus concentration in exhaled particles	Cv	$1\times {10}^{6.39}\mathrm{TCID}50/\mathrm{mL}$	Calculated based on [19,23,24,25,26,27,28,29,31,33,34]
Ventilation rate in the office	VAC	1 ACH	[37]
Respiratory rate of a person	RR	0.38 m3/h	[38]
Inactivation rate of influenza A 1	${\mu }_a$	13.9 day−1	[40]
Dose-response parameter	${\alpha }_R$	$0.18\mathrm{TCID}{50}^{-1}$	[36]

¹ The inactivation rate of influenza A in aerosols in the air in the condition of 50% R.H and 20 °C–24 °C.