Abstract:

Water is not a commercial product like any other, but an inheritance that must be preserved, protected and treated as such (2000/60 / EC). Water pollution is a process of altering its physical, chemical or biological quality, which is produced by human activity. A body of water can be polluted not only when it shows visible changes (color changes, irises of petroleum products, unpleasant smells) but also when, although apparently good, it contains, even in a small amount, toxic substances. Omar et al. (2013) characterize the aquatic environment as the last "recipient" of natural or anthropogenic pollutants.