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substitution of halogenated compounds Halogenated compounds, because of their toxical and persistent character, should be substituted by environmental friendly compounds, like water-based fat solvents in metal processing industry or water-based coating agents
substitution of phosphate Replacement of phosphate in detergents by environmentally safer substances, such as zeolite. The substitute will not act as a nutrient, and so will not cause eutrophication as a result of the accelerated growth of plants and microorganisms if it is released into waterways