What's water pollution?

I want to talk something about water crisis. In our world there is a “water crisis” in this age. This is because of unnecessary water usage, population increase etc. 80 countries form %80 of the world population and all of them are worried about water resources.

The waters on the earth surface are in a continuous loop with the energy that sun provides. People have this water from this loop for their needs and after using it they give it back to same loop. The materials that mix in the water by this process, change the water’s physical, chemical and biological characteristics and then “water pollution” occurs.

This characteristic variatons also affect the species which live in the water. Thus water pollution cause affecting of ecosystems that relating to water, breaking of stabilities and decreasing the automatically cleaning up capability of waters in the nature. These variatons also affect human health, water products, water quality.

• The pollutive materials in the air and soil pass through into the water al last.

• %99 of all the waters in the world are face to face with pollution.

• There are thousands of living species and a food storage in the water. Any breakings and changes in the water affects the life in the world negatively.

Waters that evaporate from the seas bring various dirtiness after go back down to the earth as rain. In that way dirtiness and pollutive materials continuously pass through to the waters from soil and air. These pollutive materials can’t go back their previous place again.

Pollutive materials that solved in the water are called conventional pollutants. These are less dangerous because af solving in the water. But non-conventional pollutants dangerous. Because they are dissolved in the water. Non-conventional pollutants are dissolved metals, both toxic (harmful) and nontoxic (not harmful).

We don’t have a right polluting the water and our ecosystems. We have to care the world. Because “we” are live in it.

resources: here, here and here