Journal of Water and Environment Technology
Online ISSN : 1348-2165
ISSN-L : 1348-2165
Original Papers
Production of Trichloromethylphenol from Organo-phosphorus Pesticide Fenitrothion by Chlorination
Misako KISHIDAYusuke KATOHirokazu TAKANASHITsunenori NAKAJIMAAkira OHKIYuichi MIYAKETakashi KAMEYA
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2010 Volume 8 Issue 3 Pages 185-191

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Abstract

In this study, it was attempted to identify the mutagen produced by chlorination of insecticide fenitrothion using a quadrupole GC-MS and a high-resolution GC-MS. From the mass spectra obtained by the GC-MS, the chemical structures of two unidentified compounds were extrapolated: one was identified as 2-chloro-5-methyl-4-nitrophenol by comparison to the synthesized standard compound, while another one was identified as trichloro-3-methylphenol by high-resolution GC-MS. The mutagenicity of these identified chlorination by-products (CBPs) of fenitrothion were evaluated by the Ames assay (preincubation method) using Salmonella typhimurium TA100 without exogenous activation by S9 mix (TA100-S9). However, none were found to be mutagenic. Further studies are needed to identify the mutagenic CBP(s) of fenitrothion.

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© 2010 Japan Society on Water Environment
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