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Chlorinated derivatives of estrone (E1) in the effluent of a municipal sewage treatment plant located in Shizuoka prefecture, Japan were detected by gas chromatography/mass spectrometry using electron impact in selected ion monitoring (GC/MS-EI-SIM) analysis. The concentrations of E1, 2-chloroestrone, 4-chloroestrone and 2,4-dichloroestrone in the effluent sample collected in December 2005 were 60...
We previously reported on the isolation and structural determination of five 2-phenylbenzotriazole (PBTA)-type mutagens (PBTA-1, PBTA-2, PBTA-3, PBTA-4 and PBTA-6) in blue rayon/cotton adsorbed substances collected from surface waters at sites located downstream of sewage treatment plants. We also noted that PBTA-1 and PBTA-2 were discharged from sewage treatment plants and subsequently diluted or...
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