[Conditions of waste fluid accumulation at petrochemical and oil processing enterprises and prevention of their harm to water bodies].

Waste waters released by oil-processing and petrochemical enterprises are characterized by high amounts of oil products, polycyclic and aromatic hydrocarbons, phenols, metal derivatives, surface-active substances, sulfides, naphthylenic acids and other chemicals. Due to ineffectiveness of purification systems, the waste waters grow into serious danger for water bodies. Control taking into account some priorities suggested should cover contents of the waste waters before the inflow into water bodies as well as quality of waters in the sources.