Table 2.

Surface concentration expressions.

$C_S\approx \frac{C_{in}+C_{\mathit{out}}}{2}$
Conditions		Cout (mg/m3)	R2	Conditions		Cout (mg/m3)	R2	Conditions		Cout (mg/m3)	R2
I1=95	Cin2=3.8	Cout=6.93×10−5RH+1.61	0.963		RH=25%	Cout=20.05I−0.518	0.999	RH=25%	I1=95	Cout=0.982Cin-2.016	0.999
	Cin2=7.5	Cout=2.64×10−5RH+4.97	0.980	Cin2=3.8	RH=50%	Cout=10.12I−0.326	0.999		I1=64	Cout=0.990Cin-1.531	1.000
	Cin2=18.8	Cout= −9.78×10−5RH+16.9	0.939		RH=65%	Cout=10.08I−0.313	0.982		I1=42	Cout=0.983Cin-0.892	1.000

¹Unit of I is W/m²

²Unit of C_in is mg/m³