Ключевые слова: abstract, accumulation, algae, algal, algal bloom, background, bloom, blue, bluegreen, color, concept, cyanobacteria, danger, dirty, disaster, dnieper, ecological, ecology, ecosystem, environment, environmental, flora, freshwater, green, growth, harmful, increase, lake, marsh, natural, nature, outdoor, pattern, plant, polluted, pollution, pond, problem, rapid, reproduction, river, spread, summer, surface, swamp, texture, toxic, toxins, ukraine, water,