RESUMO
Ecological requirements to reduce negative effects of chemical disinfectants were one on major determinants the line of works to develop and introduce novel compounds that are environmentally safe hydrogen peroxide derivatives. The paper analyzes the possible routes of entering different fluorine compounds into the environment when disinfecting measures are made at therapeutical-and-preventive institutions, when emergencies occur at microbiological synthesis plants. The maximum concentration of a chemical that has no effect on biochemical processes when it is continuously used at sewage works is chosen as a safe (permissible) level. Preliminary calculations show that the use of PFK for disinfection will not pollute the environment with fluorides.