This environmental MegaMix standard contains 73 components.

Components: Acrylonitrile, allyl chloride, benzene, bromobenzene, bromochloromethane, bromodichloromethane, bromoform, n-butylbenzene, sec-butylbenzene, tert-butylbenzene, carbon disulphide, carbon tetrachloride, chloroacetonitrile, chlorobenzene, 1-chlorobutane, chlorodibromomethane (dibromochloromethane), chloroform, 2-chlorotoluene, 4-chlorotoluene, 1,2-dibromo-3-chloropropane (DBCP), 1,2-dibromoethane (ethylene dibromide), dibromomethane, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene, trans-1,4-dichloro-2-butene, 1,1-dichloroethane, 1,2-dichloroethane, 1,1-dichloroethene, cis-1,2-dichloroethene, trans-1,2-dichloroethene, 1,2-dichloropropane, 1,3-dichloropropane, 2,2-dichloropropane, 1,1-dichloropropene, cis-1,3-dichloropropene, 4-chlorotoluene, 1,2-dibromo-3-chloropropane (DBCP),1,2-dibromoethane (ethylene dibromide), dibromomethane, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene, trans-1,4-dichloro-2-butene, 1,1-dichloroethane, 1,2-dichloroethane, 1,1-dichloroethene, cis-1,2-dichloroethene, trans-1,2-dichloroethene, 1,2-dichloropropane, 1,3-dichloropropane, 2,2-dichloropropane, 1,1-dichloropropene, cis-1,3-dichloropropene, 4-chlorotoluene1,2-dibromo-3-chloropropane (DBCP)1,2-dibromoethane (ethylene dibromide) dibromomethane1,2-dichlorobenzene1,3-dichlorobenzene1,4-dichlorobenzenetrans-1,4-dichloro-2-butene1,1-dichloroethane1,2-dichloroethane1,1-dichloroethenecis-1,2-dichloroethenetrans-1,2-dichloroethene1,2-dichloropropane1,3-dichloropropane2,2-dichloropropane1,1-dichloropropene