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TABLE E-3 INDOOR AIR SCREENING LEVELS (volatile chemicals only) Health-based Screening Levels 50%Odor Unit Risk Reference Residential Exposure Commarcralltndustrfat Exposure Recognition Factor Concentration Lowest Indoor Air --- -InifoorAir Lowest IndocirAir Indoor Air Threshold Physical URF RfC Residential (carcinogens) (noncarcinogens) CA (carcinogens) (noncarcinogens) (Table H-2) CHEMICAL PARAMETER state (uglm')1 09W) (uglm') (uglm') (Uglm) (uglm=) WOW) (UglrnI) (ugle) 12 DIBROMO-3-CHLOROPROPANE V L 2 OE-03 2 OE-01 1 2E-03 1 2E-03 4 2E-02 2 DE 03 2 OE-03 5 SE 02 DIBROMOETHANE 12- V S 7 1E 05 9 1 E+00 3 4E-02 3 4E-02 1 9E+00 5 7E-02 5 7E-02 2 7E+00 2 OOE+OS DICHLOROBENZENE 1 2- V L 2 OE+02 4 2E+01 4 2E+01 5 8E+01 5 8E+01 3 05E+05 DICHLOROSENZENE,1 3- V L 11E+02 22E+01 22E+01 31E+01 31E+01 DICHLOROBENZENE,1,4- V S 11E-05 81E+02 2 1E 01 21E-D1 17E+02 38E01 3GE01 24E+02 110E+03 01CHLOROSENZIDINE 33- NV S DICHLORODIP14ENYLOICHLOROETHANE(DDD) NV S DICHLORODIPHENYLDICHLOROETHYLENE(DDE) NV S DICHLORODIPHENYLTRICHLOROETHANE(DDT) NV S DICHLOROETHANE 1 1- V L 1 8E 06 4 9E+02 1 5E+00 1 5E+00 1 OE+02 2 SE+00 2 5E+00 1 4E+02 1 25E+05 DICHLOROETHANE 1 2 V L 2 1E 05 4 9E+00 1 2E-01 1 2E-01 1 OE+00 2 OE 01 2 OE-01 1 4E+00 2 42E+03 DICHLOROETHYL£NE 1 1- V L 2 OE+02 4 2E+01 4 2E+01 5 8E+01 5 8E+01 2 00E+06 DICHLOROETHYLENE,Cis 1 2- V L 3 5E+01 7 3E+00 7 3E+00 1 OE+01 1 OE+01 - DICHLOROETHYLENE Trans 12- V L 7 0E+01 1512+01 1 5E+01 2 OE+01 2 0E+01 8 73E+04 DICHLOROPHENOL,24- NV S 140E+03 DICHLOROPROPANE 1,2- V L 1 OE 05 3 9E+00 24E-01 2 4E 01 8 OE-01 4 OE-01 4 OE 01 1 1E+00 1 19E+03 DfCHLOROPROPENE 13- V L 1 BE-05 7 OE+01 1 5E-01 1 5E 01 1 5E+01 2 BE 01 2 5E-01 2 0E+01 4 i6E+03 DIELDRIN NV S DIETHYLPHTHALATE NV S DIMETHYLPHTHALATE NV S DIMETHYLPHENOL 2 4- V S 7 0E+01 1 5E+01 1 5E+01 2 OE+01 2 OE+01 1 00E+00 DINITROPHENOL,2 4- NV S DINITROTOLUENE 2 4- NV S 14 DIOXANE NV L s 12E+05 DIOXIN(2 3 7 8-TCDD) NV S END05ULFAN NV S ENDRIN NV S ETHANOL NV L 19E+04 19E+04 192E+04 ETHYLBENZENE V L 2 0E+03 4 2E+02 4 2E+02 5 8E+02 5 BE+02 2 00E+03 FLUORANTHENE NVI S FLUDRENE V I S 14E+02 29E+01 29E+01 41E+01 41E+01 HEPTACHLOR NV 5 3 00E+02 HEPTACHLOR EPDXIDE NV 5 3 00E+02 HEXACHLOROBENZENE NV 5 HEXACHLOROBUTADIENE NV 5 120E+04 HEXACHLOROCYCLOHEXANE(gamma)LINDANE NV S HEXACHLOROETHANE NVI S INDENO(123-cd)PYRENE NVI S LEAD NVI S MERCURY V I 5 9 1E-02 1 9E-02 1 9E-02 2 7E O? 2 7E-02 INTERIM FINAL-February 2005 SF Bay RWQCB Page 2 or 4 Table E-3(Indoor Air Goals)