Pollution is a degradation of the environment that causes a harmful effect on the environment and on the living beings that develop there. Pollution can be caused by humans, but also due to natural processes. There are different types of pollution, such as atmospheric, water, soil, sound and visual.
pH is important because it sets the stage for how easily nutrients are available (which can lead to algal blooms) and how easily things like heavy metals dissolve in water (creating toxicity to aquatic life).
The most important impact of hardness on fish and other aquatic life appears to be the affect the presence of these ions has on the other more toxic metals
Ammonium nitrate is used in fertigated crops, a fertilization technique in which the fertilizer is diluted in drip irrigation water. Fertilizers used in agriculture are made up of ammonium nitrate, the same substance that caused the massive explosion in Beirut, Lebanon, last week.
With this information, we can conclude that Rivers are polluted by the contamination of organic waste, including human and animal excreta, and agricultural waste resulting from plant decomposition. With the increase in population and the emergence of industrial activity, the pollution of rivers and lakes did not cease to increase.
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