Szukana fraza: [Abstract = The quantitative and qualitative chromatographic analysis was carried out using a gas chromatograph coupled with a mass spectrometer \(GC\-MS\). The total concentration of 8 PAHs before oxidation reached the value of 9150 ng\/L The concentration of 4\-ring compounds and 5\-ring PAHs were equal to 6390 ng\/L and 2760 ng\/L, respectively. The highest decrease \(93%\) the sum of 8 hydrocarbons using a dose of oxidizer 7.4 ml\/L and in the presence of titanium catalyst was achieved.]

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