Abstract
The contents of organic halogenated compounds in nonvolatile hexane-soluble neutral organic materials of supplied water were characterized by means of GC-MS, GC-ECD, and TOX.
The following conclusions were drawn from analysis of the date collected.
1) A number of organic halogenated compounds had greater polarity.
2) A number of organic halogenated compounds identified by GC-MS were organochlorine herbicides and insecticide.
3) TCTP, oxadiazon, CNP and chlomethoxynil were detected at the level of ppt during the months they were used. However, α-BHC was detected to the order of ppt throughout the year.
4) The amounts used of TCTP and oxadiazon were respectively less than CNP. But the concentration of TCTP and oxadiazon in supplied water were greater than CNP.
5) The organochlorine herbicides and insecticide of extreme low concentration were usually not removed at water purification plants.
6) The organic halogenated compounds except organochlorine herbicides and insecticide existed markedly in supplied water.
