Table 2. Detection results of air samples from different locations. (mg/m³).

Detection location	Trichloromethane	Tetrachloroethylene	Carbon tetrachloride	Methanol	1,2-dichloroethane	Trichloroethylene	Methyl acetate	Dichloromethane
Six-color offset machine 3# operating position in printing department	5.65	<1.00	<1.00	<1.00	<0.13	<0.89	<1.00	<0.13
Seven-color offset machine 4# operating position in printing department	110.30	<1.00	<1.00	<1.00	<0.13	<0.89	<1.00	<0.13
Operating position in laminating department	52.96	<1.00	<1.00	<1.00	<0.13	<0.89	<1.00	<0.13
Other locations	<1.00	<1.00	<1.00	<1.00	<0.13	<0.89	<1.00	<0.13