(a) (a) Concentrations of VOCs (µg/m³)

		Compound								Reference
Order	Source	Benzene	Toluene	Ethyl benzene	p-Xylene	Styrene	o-Xylene	α-Pinene	TVOC
(1)	New furniture	1.17	330	115	96.9	78.6	42	50.1	1038	This study
(2)	Office	11.92				642.5				Guo et al. [34]
	Nonsmoker house	6.56				6.05
(3)	Renovated central library	2.87–290.4	51.89–83.7	BDL*	23.56–58.3		2.55–6		178.6–504	Srivastava et al. [35]
	(polishing and varnishing furniture)
(4)	Resident housing unit	2.6	1286.7	27.3	79.1	276.8				Kang et al. [23]

*Below detection limit.