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Polluted water can also include organic substances corresponding to organic matter and micro-organisms that cause waterborne diseases. Natural or unpolluted water is colourless, odourless and clear. Water pollution modifications the traits of water by the presence of excess physical, chemical or organic substances that change the qualities of the water and are able to causing hurt to living organisms. At the identical time, the United States and Europe have seen their particulate air pollution decrease up to now a long time. Today, the common American is exposed to particulate air pollution levels that meet the WHO guideline, while the typical Briton loses a couple of month of life as a outcome of particulate pollution publicity above the WHO guideline. Oceans receive most of their pollution from land through rivers within the form of vitamins, waste, heavy metals and plastic particles which fragment into items of lower than 5 mm however do not biodegrade within the marine surround