Detection and influente factors of trichloromethane in drinking water of network

  Objective   To study the variety of trichlor omethane(TCM)in distribution network, and the influence of other parameter to the production of TCM.

  Methods   Detection was made on the parameters such as TCM, free chlorine, UV254 and Br-in a northern city distribution network of China.

  Results   Free chlorine had a good negative correlation with TCM.UV254 had good negative correlation with TCM after long distance distribution.the sampling sites with low Br-concentration had positive correlation with TCM; on the contrary, sampling sites with high Br-concentration had negative correlation with CM.

  Conclusion  

  Results   of the experiments were analyzed and measurement correspond to the problems were provided from four aspect as the pollution of source; the sort of the disinfector; water stability of the out flow and corruption of the distribution network.