factor of material accumulation

The article presents the scientific rationale, general requirements and principles set standards of ecological safety for water of water objects of fishery; it has been formulated requirements for water quality of surface water objects to ensure normal functioning of aquatic geoecosystem. It has been also developed and worked instructional techniques and procedures for establishing standards of ecological safety of water management - fishery the maximum concentration limit substances. Generalized results establish ecological and fisheries fishery standard - the maximum concentration limit (MCL) morpholine. In terms of the value of the MCL (0.125 mg / l), stability in the aquatic environment (reduc-tion of 95% concentration is 32 days), the index of material accumulation in organs and tissues of fish (0,85-2,4), the degree of factor of defeat aquatic geoecosystem ( 1.1) morpholine belongs to 3 hazard class.