Study on the structure and mutagenicity of a new disinfection byproduct in chlorinated drinking water |
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| Authors: | Gong Huijuan You Zhen Xian Qiming Shen Xing Zou Huixian Huan Fei Xu Xu |
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| Affiliation: | State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, and Center of Materials Analysis, Nanjing University, Nanjing, 210093, P.R. China. |
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| Abstract: | The structure of a new chlorinated disinfection byproduct (DBP) in drinking water is studied. The new DBP was prepared through chlorinating its best precursor, and it was extracted and isolated from the chlorination products. Its structure is identified as 2,2,4-trichloro-5-methoxycyclopent-4-ene-1,3-dione (TCMCD) through FTIR, MS, 1H NMR, and 13C NMR spectroscopic analysis and single-crystal X-ray diffraction method. Results of the Ames test with tester strain TA100 indicated that the newly identified DBP TCMCD is a mutagen. |
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