Water, substance without, of which we could not live. She is useful in the everyday life almost to everything, unfortunately largely of applications she must be cleaned. We are calling all chemical substances and micro-organisms which are found in natural waters pollutants of waters, not being with their natural components. We are also ranking heat-ed waters of pollutant among pollutants of waters thermal. Generally we can divide pollutants of waters on account of the origin: natural and artificial, degree of the harmfulness: directly harmful, indirectly harmful, according to the criterion of the permanence of pollutants: degradable, indecomposable, long-lasting, on account of the source: spot, area pollutants, from linear sources. Certainly we aren't and we will never be able entirely to prevent polluting waters. We should however take action being aimed at limiting more further polluting waters. we can improve the State of the cleanness of water through: · implementing new, cleaner technologies, reducing charge of pollutants in sewers, · rational applying fertilizers, of measure of housemaids to keep the purity, of pesticides. Replacing intoxicants and long-lasting less toxic and more easily degradable, · reducing the number of produced sewers, · construction of the sewage treatment plant, · desalting of mine waters, · not carrying heated directly waters to bodies of water, · due locating and the exploitation of waste dumps and other objects from which pollutants can get to underground waters or surface, · liquidation "wild" of garbage dumps and other badly protected stockpiles of materials being able to cause contaminating waters, · reducing emission of nitric oxides and oxides of sulphur to air but because of that limiting pollutants of waters caused by acid rains. prosze o sprawdzenie czy jest to prawidlowo napisane i czy nie ma bledow . wiem ze na pewno sa! prosze o podanie mi tekstu juz z poprawkami! wiec jak nie umiesz to nawet nie zaczynaj ! Z gory dziekuje Pozdrawiam.;)
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