Fig. 4From: Response of microbial community structure and metabolic profile to shifts of inlet VOCs in a gas-phase biofilterCarbon metabolism principle component analysis of microbial community with different inlet VOCs: No. 1–8 referred to stages of toluene, ethylbenzene, chlorobenzene, acetone, isopropyl alcohol, ethyl acetate, n-hexane and tetrahydrofuranBack to article page