Online Resource 1 Sixty-One Volatile Organic Compounds. the Names Used in the Study Are

Online Resource 1 Sixty-one volatile organic compounds. The names used in the study are in bold for 54 detected compounds. Subgroup IUPAC Name Alternative Name IARC Group 2) Korean Standard 3) MCL 4) Aromatic Benzene - 1 10 5 Styrene Vinyl benzene 2B - 100 hydrocarbons Naphthalene - 2B - - (Alkyl Methylbenzene Toluene 3 700 1000 Ethylbenzene - 2B 300 700 benzenes) 1) 1,3-Dimethylbenzene m-Xylene 3 1,4-Dimethylbenzene p-Xylene 3 500 10,000 1,2-Dimethylbenzene o-Xylene 3 1,2,4-Trimethylbenzene Pseudocumene - - - 1,3,5-Trimethylbenzene Mesitylene - - - Isopropylbenzene Cumene 2B - - n-Propylbenzene - - - - n-Butylbenzene - - - - sec-Butylbenzene - - - - tert-Butylbenzene - - - - 4-Isopropyltoluene p-Cymene - - - Ethers methyl tert-butyl ether MTBE 3 - - Halogenated Chloromethane Methyl chloride 3 - - Bromomethane Methyl bromide 3 - - alkanes Dichloromethane Methylene chloride, MC 2B 20 5 Dibromomethane - - - - Dibromochloromethane Chlorodibromomethane 3 100 60 5) Bromochloromethane Chlorobromomethane - - - Bromodichloromethane - 2B 30 0 5) Dichlorodifluoromethane Freon 12. CFC 12 - - - Trichlorofluoromethane Freon 11. CFC 11 - - - Tribromomethane Bromoform 3 - 0 5) Trichloromethane Chloroform 2B 80 70 5) Tetrachloromethane Carbon tetrachloride 2B 2 5 Chloroethane Ethyl chloride 3 - - 1,1,1-Trichloroethane Methyl chloroform, 1,1,1-TCA 3 100 200 1,1-Dichloroethane Ethylidene dichloride, 1,1-DCA - - - 1,2-Dichloroethane Ethylene dichloride, 1,2-DCA 2B - 5 1,2-Dibromoethane Ethylene dibromide 2A - 0.05 1,1,2-Trichloroethane 1,1,2-TCA 3 - 5 1,1,1,2-Tetrachloroethane - 2B - - 1,1,2,2-Tetrachloroethane - 2B - - 1,2-Dichloropropane 1,2-DCP 3 - 5 2,2-Dichloropropane - - - - 1,3-Dichloropropane 1,3-DCP - - - 1,2,3-Trichloropropane - 2A - - 1,2-Dibromo-3-chloropropane DBCP 2B 3 0.2 Halogenated cis-1,2-Dichloroethene cis-1,2-Dichloroethylene, cis-1,2-DCE - - 70 Chloroethene Vinyl chloride, VC 1 - 2 alkenes 1,1-Dichloroethene Vinylidene chloride, 1,1-DCE 3 30 7 trans-1,2-Dichloroethene trans-1,2-Dichloroethylene, trans-1,2-DCE - - 100 Tetrachloroethene Tetrachloroethylene, PCE 2A 10 5 Trichloroethene Trichloroethylene, TCE 1 30 5 Hexachlorobutadiene - 3 - - 1,1-Dichloro-1-propene 1,1-Dichloropropene - - - cis-1,3-Dichloro-1-propene cis-1,3-Dichloropropene 2B - - trans-1,3-Dichloro-1-propene trans-1,3-Dichloropropene 2B - - Halogenated Chlorobenzene - - - 100 1,4-Dichlorobenzene p-Dichlorobenzene 2B - 75 aromatics 1,2-Dichlorobenzene o-Dichlorobenzene 3 - 600 1,3-Dichlorobenzene m-Dichlorobenzene 3 - - 1,2,4-Trichlorobenzene - - - 70 1,2,3-Trichlorobenzene - - - - Bromobenzene - - - - 2-Chlorotoluene - - - - 4-Chlorotoluene - - - - 1) Alkyl benzenes are derivatives of benzene with one or more hydrogen atoms replaced by alkyl groups; 2) International Agency for Research on Cancer classified compounds in four groups based on the existing scientific evidence for carcinogenicity. Group 1 indicates "carcinogenic to humans; 2A "probably carcinogenic to humans"; 2B "possibly carcinogenic to humans"; 3 "unclassifiable as to carcinogenicity in humans"; 4 "probably not carcinogenic to humans"; 3) For drinking water quality (µg/L); 4) US EPA maximum contaminant level (MCL) (µg/L); 5) US EPA maximum contaminant level goal (MCLG) (µg/L)