What is the current water quality situation in China, and what are the main problems?

It depends on what area, the groundwater in the countryside is still very good, but the river water is not good, the pollution is too serious now, all kinds of pesticides, industry, man-made, in the long run, the earth is really going to end.

It is very poor, the water quality is short, and the industrial pollution and domestic pollution are quite serious.

Our country is a country with severe drought and water shortages. The total amount of freshwater resources is 2.8 trillion cubic meters, accounting for 6 of the world's water resources, second only to Brazil, Russia and Canada, ranking fourth in the world, but only 2,300 cubic meters per capita, only 1 4 of the world average, 1 5 of the United States, ranking 121st in the world, and one of the 13 countries with the poorest per capita water resources in the world.

After deducting the hard-to-use flood runoff and groundwater resources scattered in remote areas, the actual amount of available freshwater resources in China is even less, only about 1.1 trillion cubic meters, and the per capita water resources are about 900 cubic meters, and their distribution is extremely uneven. By the end of the 20 th century, more than 400 of the more than 600 cities in the country had the problem of insufficient water supply, of which 110 cities had serious water shortages, and the total water shortage in cities across the country was 6 billion cubic meters.

According to monitoring, the groundwater in most cities in the country is polluted to a certain extent by points and surfaces, and there is a trend of increasing year by year. The increasingly serious water pollution not only reduces the use function of water bodies, further aggravates the contradiction of water shortage, and has a serious impact on the sustainable development strategy being implemented in China, but also seriously threatens the drinking water safety of urban residents and the health of the people.

Ministry of Water Resources**, the Chinese population will reach 1.6 billion in 2030, when the per capita water resources will be only 1,750 cubic meters. Under the condition of fully considering water conservation, it is estimated that the total water consumption will be 700 billion to 800 billion cubic meters, and the water supply capacity will be increased by 130 billion to 230 billion cubic meters compared with the current level.

In general, China is a country with severe drought and water shortage. The total amount of freshwater resources is 2.8 trillion cubic meters, accounting for 6 of the world's water resources, second only to Brazil, Russia and Canada, ranking fourth in the world, but only 2,200 cubic meters per capita, only 1 4 of the world average, 1 5 of the United States, is one of the 13 countries with the poorest per capita water resources in the world.

Current situation: water shortage, serious water pollution, serious soil erosion, serious low water price, serious waste of water resources.

There is more water in the south and less water in the north.

There is less water in the west and more water in the coast.

This year's situation: The United Nations has set the theme of this year's "World Water Day" as "Clean Water, Healthy World", and the theme of China's commemoration of "World Water Day" and the launch of "China Water Week" is "Strict Water Resources Management and Sustainable Development".

Solving our country's increasingly complex water problems.

The first is to implement total water use control and promote the sustainable use of water resources.

The second is to build a water-saving society and improve the efficiency and effectiveness of water use.

The third is to strengthen the management of water function zones to meet the standards and effectively protect water resources.

Fourth, promote the connection of rivers and lakes and enhance the capacity of water resource allocation.

Fifth, we should strengthen the scientific scheduling of projects and improve the level of water resources security.

Sixth, we should do a good job in the management of water shorelines and promote the restoration of aquatic ecosystems.

Seventh, it is necessary to strengthen the unified management of water resources and promote the reform of the water management system.

Eighth, consolidate the foundation of industry management and improve the level of water resources management.

The current water situation is very urgent, many countries are suffering from severe water shortages, and we are wasting water here.

I want to ask you, now China's ** water quality is better.

In general, China is a country with severe drought and water shortage. The total amount of freshwater resources is 2.8 trillion cubic meters, accounting for 6 of the world's water resources, second only to Brazil, Russia and Canada, ranking fourth in the world, but only 2,200 cubic meters per capita, only 1 4 of the world average, 1 5 of the United States, is one of the 13 countries with the poorest per capita water resources in the world.

Current situation: water shortage, serious water pollution, serious soil erosion, serious low water price, serious waste of water resources.

There is more water in the south and less water in the north.

There is less water in the west and more water in the coast.

Our country's water resources are not very abundant.

Poor water quality in the urban belt refers to the water quality problems in the urban water supply system, which may have the following problems:

1.Suspended solids and particulate matter: the presence of impurities in urban water supply pipes that have not been cleaned out, or particulate matter and turbidity caused by the resuspension of sediment due to the entry of sewage during transportation.

2.Chemical pollutants: such as residual pesticides, heavy metals, organic matter, etc.

3.Contamination of aquatic organisms: including viruses, bacteria, etc.

If you drink these problematic waters, it may cause adverse effects on human health, causing headaches, nausea, diarrhea, etc. Therefore, the quality of drinking water should be guaranteed, such as the installation of filtration and purification equipment, which can help remove contaminants such as suspended solids, bacteria and organic matter, and ensure the safety and hygiene of drinking water.

However, due to water pollution, today's tap water is no longer hygienic. At present, the composition of urban environmental pollution is very complex, in addition to heavy metals, it also contains a large number of pesticides, fertilizers, detergents and other harmful substances, so, which cities in China are more serious water pollution?

The Nature Conservancy (TNC), together with the C40 Metropolis Climate Pilot Group and the International Water Association, has published a report on the Global Urban Water Blueprint. Seventeen cities in China, with Shenzhen, Xi'an, Chengdu, Qingdao, Tianjin, and Changchun, facing unprecedented levels of water pollution due to population growth, climate change, and environmental degradation.

It is reported that the "Urban Water Blueprint" deeply analyzes 2,000 drinking water sources (rivers, forests and other ecosystems) in 530 large and medium-sized cities around the world, of which 106 are located in the Asia-Pacific region, and 17 of them are in China. The survey covered 100 of the world's largest cities, involving nearly one billion people. In terms of water quality, the water source of Chinese cities, Haohuai, is mainly heavily polluted, especially sediment.

It says that a quarter of the world's cities can make a good return by investing in water conservation. Eight of China's 17 largest cities are in the upper middle range, so water quality can be significantly improved through the adoption of best agricultural practices such as river construction, forest protection and afforestation. This strategy can reduce sediment and nutrient pollution by 10 percent, resulting in a 5 percent reduction in the average cost of water treatment.

Urban public centralized water supply, self-built facility water supply and secondary water supply units, in their water supply and management within the scope of water supply and water quality should meet the water quality requirements specified in this standard. The water quality of the user's water receiving point should also meet the water quality requirements specified in this standard.

Urban water supply: domestic drinking water and water for other purposes provided to urban residents by urban public centralized water supply enterprises and self-built facility water supply units. Urban public centralized water supply:

Urban water supply enterprises provide water to units and residents for their living, production and other activities through public water supply pipelines and their ancillary facilities. Water supply by self-built facilities: Urban water users mainly provide water for their own living, production and other activities with their self-built water supply pipelines and their ancillary facilities.

Secondary water supply: The water supply unit will supply water from the urban public water supply and self-built facilities to the sedan users by the water supply pipeline or special pipeline after storage, pressurization or advanced treatment and disinfection. User water point:

The point of water used by the user within the water supply area, i.e. the faucet (faucet).

Urban public centralized water supply enterprises shall establish a water quality testing room, equipped with inspectors and instruments and equipment suitable for the scale of water supply and water quality inspection projects, and be responsible for testing the water quality of source water, purification structure effluent, factory water and pipe network water, and if necessary, sampling and testing of user water.

Self-built facilities water supply and secondary water supply units shall do water quality testing in accordance with the requirements of this standard. If the conditions are limited, some projects can also be entrusted to a monitoring unit with corresponding qualifications for inspection.

Selection of sampling pointsThe setting of sampling points should be representative, and should be set up at the water intake, water outlet of the water plant, and the regular water use points of residents and the end of the pipe network. The number of sampling points for water quality inspection in the pipeline network should generally be calculated according to one sampling point for every 20,000 people in the water supply population. When the water supply person 13 is less than 2 0 and more than 1 million, it can be increased or decreased as appropriate.

Water is the source of life, it can be said that water has a very big impact on a person, and the water quality of a place is good, and the life of the local people may be better. In some places where water pollution is serious, it will not only cause great inconvenience to the local people, but also threaten the health of the local people. We have seen many villages that suffer from various diseases due to water pollution, and in some places the water quality is good, and the local people may live longer.

It is precisely because of this that we will introduce to you today the provinces with the best water quality in China, the top 30 cities in the country in terms of water quality, and this province accounts for 9! Many people may not be able to guess which province this is, in fact, you can analyze it carefully. Generally, in places with very good economies, water quality will be affected to some extent, as for which places we will not say.

And those areas that are more remote and have a little less economic development will definitely be better in terms of water quality. For example, in Guangxi, the Ministry of Ecology and Environment of the People's Republic of China recently announced the water quality situation across the country and conducted a water quality survey in 333 cities across the country. And the final results were not what we expected, and most of the top 30 were in the western region.

Because from the point of view of the state of development, the west is indeed a little bit worse. And Guangxi Province, which we are going to talk about today, accounts for 9 of the top 30. Therefore, we say that Guangxi is the province with the best water quality in China, I don't think you will refute it, right?

The cities on the list in Guangxi are 9 cities: Laibin, Wuzhou, Liuzhou, Chongzuo, Hechi, Guilin, Baise, Hezhou, and Guigang.

I guess many people have already guessed it before I mentioned that it was Guangxi. Because Guangxi is a province with a very good natural environment, such as Guilin, Guangxi, "Guilin's landscape is the best in the world", Guilin's landscape is not only famous in China. Even in the international popularity, it is very high, and it can attract a large number of tourists every year, and tourists have a relatively high evaluation of Guilin's landscape.

Water resources are indispensable natural resources for human production and life, and also the environmental resources on which organisms depend, with the intensification of the water crisis and the deterioration of the quality of the water environment, the shortage of water resources has evolved into one of the world's most concerned resource and environmental problems.

1) There is a shortage of water resources, the so-called shortage refers to the relative demand for water resources, the supply of water resources can not meet the needs of production and life, resulting in insufficient production and drinking crisis, resulting in huge social and economic losses, and gradually showing that water resources are the sustained, rapid and healthy development of the national economy"Bottlenecks"The water resources industry is the basic industry of the national economy, and it is an inevitable trend of history to give priority to its development; (2) A large amount of sewage is discharged in the process of industrial and agricultural production and people's life, on the one hand, they pollute the water source, lead to the decline of water resource function, make the contradiction between supply and demand of water resources more acute, bring great adverse effects to the economic environment, and seriously restrict the sustainable development of economy and society, on the other hand, in order to alleviate the contradiction between supply and demand of water resources and the increasingly serious problem of water environment deterioration of the world, sewage treatment and reuse is imminent; (3) The development and utilization of water resources has brought about a series of environmental problems, and the impact on the environment must be correctly dealt with, and the adverse impact on the environment must be minimized as much as possible, so that water conservancy projects can give full play to the maximum benefits, and only in this way can correct decisions be made on the development, utilization, protection and management of water resources. Therefore, from a practical point of view, water resources not only have natural, social, and environmental attributes, but more importantly, it also has economic attributes. Ismael Senodin, World Bank Vice President for Environmental Sustainability, said:

The management of the world's depleted water resources required a global policy and water should be seen as an economic resource. To sum up, water resources include both water quantity and water quality, which are irreplaceable natural resources and environmental resources for human production and life survival, and are fresh water that can be directly used or to be used by the society under certain economic and technological conditions, participate in the natural water cycle, and affect the national economy. A closer look at this definition reveals three distinguishing features:

China's water resources are more in the south and less in the north, and the distribution between the north and the south is uneven. In fact, China has abundant water resources, but it has too many people, so its per capita share is small. At the same time, all aspects of society waste water resources are too great, resulting in a shortage of water resources in China.