Nowaday, the environment is heavily polluted by many reason such as: the wastes of industrial area, domestic waste, the smoke or dust of vehicles ... With the population growth rate and the growth rate of industrial and urban activities, the more polluted water is, . Water pollution is caused by different types of source. Many industrial wastes are thrown into the river but theyhave not been properly treated; chemical fertilizers and pesticides that seep into groundwater and pond, Domestic waste water is discharged from riverside residential areas, which is causing serious pollution and affect badly to the health of people and creatures in the area. As you can see, water pollution is getting worse and worse so we need to announce to everyone around us, we need to join in the campaign of protecting the environment.

Nowadays, the problem of water pollution is a lot of people concerned. In fact, our water resources are becoming increasingly polluted, it is not too difficult to see lakes and ponds flooded with garbage and black water . This is due to the bad consciousness of some people, and the fact that the water is polluted has very serious consequences.