TY JOUR TI STUDY POSSIBILITY OF IDENTIFICATION OIL ON THE BASIS QUANTITATIVE DEFINITION POLYNUCLEAR AROMATIC HYDROCARBONS CONTAINED IN IT KW chromatography KW oil KW oil pollution KW identification KW polycyclic aromatic hydrocarbons JO Problems of risk management in the technosphere AU Ozhegov, E.A. AU Belshina, Y.N. PY 2013 IS 2013 PB Saint-Petersburg University of State Fire Service of Emercom of Russia