There is a shortage of water resources. The total amount of water resources ranks sixth in the world, and the per capita consumption is only 2500m3, which is about the per capita water consumption in the world 1/4, ranking 1 13 in the world. It has been listed as one of the 13 water-poor countries by the United Nations. The degree of water pollution is serious and the loss is huge, and14 of the population in China does not meet the hygienic standard of drinking water. Water pollution directly affects our people's lives and living environment. The surface water quality is not optimistic. The investigation found that 25% of the rivers were eutrophic, 15% were turning to eutrophication, 100% of the rivers were water hyacinths, covering more than 30% of the rivers, 80% of the rivers had garbage, 35% of the rivers were impassable and blocked, and 20% of the rivers had become stagnant water.

Water pollution is caused by pollutants exceeding the self-purification capacity of rivers. According to the survey, residents' awareness of water resources protection is poor, and the garbage is directly discharged into the river, and the toilet garbage at home is directly discharged into the river; Agricultural water, water containing pesticides and fertilizers is discharged into rivers; Individual private factories' economic interests at the expense of environmental interests have caused serious water pollution.

Water pollution directly affects people's life and production. Using polluted water for agricultural production will lead to reduced production; Water hyacinth in the river blocks the river and makes it impossible for ships to pass; Pollution can make people sick, such as diarrhea, skin diseases and even poisoning. For example, Minamata disease in Japan is a good example, and its impact on fishery production can not be ignored.

A large number of facts tell us that most of our water pollution is human's own behavior, and serious water pollution has attracted great attention of governments all over the world. I think we should protect unpolluted water bodies while controlling water pollution from now on, fundamentally improve human quality and enhance human awareness of environmental protection.