The formation of halogenated solvent artifacts was investigated in common analytical solvents exposed to free chlorine, chloramines, and free bromine. Three brominated solvent artifacts [3-bromo-3-methyl-2-butanol (BMB) ,l-bromc-2-methyl-2-propanol, and bromoacetone] were identified by gas chromatography/mass spectrometry in methyl tert-butyl ether or pentane exposed to free bromine. These same...

The Salmonella-microsome assay for mutagenesis was used to determine the effect of ozone on the mutagenesis of selected carcinogens and mutagens in water. Short periods of ozonation were shown to completely inactivate the mutagenicity of several polyaromatic amine mutagens including acriflavine, proflavine, and beta-naphthylamine. Selected polyaromatic hydrocarbons were also sensitive to ozonat...

Swimming pool water treatment in general includes flocculation, sand filtration and subsequent disinfection. Chlorite, chlorate and bromate are disinfection by-products of swimming pool water treated by chlorine species or ozone. They are responsible for adverse effects on human health and their analyses in swimming pool water are necessary. The simply and fast suppressed ion chromatography sim...

Water soluble organic compounds (OCs), including naphthenic acids (NAs), are potentially toxic constituents of oil sands process-affected water (OSPW) that is generated during extraction of bitumen from Alberta oil sands. Ozonation can decrease concentrations of OCs in OSPW. However, effects of ozonated-OSPW on multicellular organisms are unknown. A 10-day and a chronic exposure of Chironomus d...

Penelitian ini bertujuan untuk mengetahui pengaruh waktu dan konsentrasi ozon terhadap residu mankozeb buah melon fresh-cut. Memberikan penanganan yang baik dari segi kualitas pada fresh-cut menggunakan metode ozonated water jenis mikroba ada Metodologi penelitian analisis regresi linear berganda dengan bantuan software minitab 2016 perlakuan larutan 1.6 ppm, 0.8 0.4 perendaman 10 menit 20 meni...