[Induction of the monooxygenase activity in fish tissues by polycyclic aromatic hydrocarbons and its use in the biomonitoring of water pollution].

Monooxygenase activity changes in the liver and in other tissues of certain fish species were studied after injection of methylcholanthrene and aminoanthracene to fish. Determinations of the benz(a)pyrene hydroxylase activity and activity of 7-ethoxycoumarine 0-dealkylation in the monooxygenase system were proposed as test-systems for the control of polycyclic hydrocarbon contents in natural and waste waters. The metabolic activation (Aim's test) performed by the liver microsomal fractions of different fish species was used for the analysis of sulfate cellulose industry waste waters.