<p>Single-bubble sonoluminescence spectra were recorded in the mode of a bubble moving near the center of levitation in a liquid for the analysis of water samples contaminated with commercial gasoline. These spectra contained characteristic bands of emitters representing gasoline components, i.e., xylenes, terphenyls, anthracene, and C₂ as a decomposition product of other gasoline components (namely benzene, pentane, and hexane) in the bubble plasma. Recording the bands of these emitters against the background of the spectral continuum of water sonoluminescence allowed gasoline in water to be determined from the strongest band of terphenyls as a function of the amount of gasoline. A relationship between the intensity of this band and the amount of gasoline in water was constructed. The experimental data obtained in this work can be used to detect and determine gasoline polluting water.</p>