A few questions about water pollution

Without food, we can survive for weeks, but without water, we die of dehydration after a few days. More than two-thirds of our body is water, yet most people are not aware of the importance of drinking water.

Water is the source of life and health. Medical research has proved that the fetal period of 90% of the body's water, 70% of the water in the adult body, the old water down to 60% of the following, looking at the human body's life, is the loss of 30% of the process of water, which is medically referred to as: "drying is the main manifestation of aging", life's most basic activities of a metabolism should be Through the movement of water to achieve, all kinds of human body fasting to nutrients, proteins, fats, etc., and ultimately to be y dissolved in water in order to be transported by the blood, was absorbed by the organization. Each visceral organs also have 700% -80% by water composition.

From a wide range:

Water is an essential raw material for industrial production, many industrial production to water as a carrier and medium. Agricultural production is even more indispensable to water.

China's current situation is the per capita possession of water resources is very low, our country belongs to the lack of water resources. And the distribution of water resources in our country and the uneven state of the South and the North is less. Therefore, water conservation and protection of water resources is a very urgent task.

How to protect water to conserve water? From an individual point of view, life should pay attention to every little thing, do people go water off, wash your hands when the water on a small point, to do a water multi-purpose, such as washing dishes with the water flushing toilet and so on.

From the national point of view, to vigorously publicize the importance of water, vigorously promote water-saving products, such as water-saving faucets water-saving toilet. To increase investment in sewage treatment, increase the supervision of water pollution and so on.

China's water scarcity, per capita possession of only 1/4 of the world average, and spatial and temporal distribution is extremely unbalanced, the effective utilization of water resources is low, the phenomenon of running, bubbling, dripping, leakage is common, and water resources are seriously wasted. With the rapid development of China's economy, the continuous expansion of urban scale, urban water consumption and wastewater is increasing, resulting in the growing shortage of urban water sources, the contradiction between supply and demand of water resources is more prominent. And the pollution of water quality is also becoming more and more serious, so that the original fresh water supply with good water quality is limited. To be developed fresh water from the centralized water supply points farther away, the one-time investment costs are high, so that some water-scarce areas are unable to expand the water supply capacity, a serious constraint on China's economic development.

In order to solve the increasingly prominent contradiction between the supply and demand of water resources, on the one hand, the need to conserve the use of limited water resources, on the other hand, should actively promote the recycling of sewage technology, to take the road of sustainable development of water resources utilization. Water reuse technology is in line with this goal of technology, it has a provincial investment, quick results, low operating costs. At the same time, the stable source of urban sewage and sufficient water for the practical promotion of this technology provides a guarantee. It has been proved that water reuse is an effective water conservation technology. The widespread popularization of this technology saves valuable water resources, eases the contradiction between supply and demand of urban water resources, reduces the burden of urban drainage system, controls water pollution, protects the ecological environment, has important environmental and social benefits, and can bring significant economic benefits.

The trend of water environment deterioration has also not been effectively curbed. The national soil erosion area of 3.67 million square kilometers, accounting for 38% of the national territory. Nearly half of the country's river sections and 90% of urban waters are polluted to varying degrees. The deterioration of the water environment has damaged the ecosystem and further aggravated the contradiction of water scarcity. With China's population growth, economic development and urbanization process accelerated, China's water resources situation will be more serious, characterized by water resources tension, water pollution and flooding water crisis has become an important constraint on China's sustainable development, and become a new period to achieve economic and social development goals with basic, global and strategic major issues.

It is worth warning that China in recent years, water pollution accidents occur frequently, especially since last year, Lake Tai, Lake Chaohu, Dianchi successive large-scale outbreaks of cyanobacteria, some important drinking water sources are contaminated, seriously affecting the people's production and life and social stability.

China's 82% of people drinking shallow wells and rivers, where water quality pollution severe bacterial exceeds health standards accounted for 75% of the drinking water contaminated by organic matter population of about 160 million. For a long time, people have always thought that tap water is safe and hygienic. However, because of water pollution, today's tap water can no longer be considered hygienic. A survey shows that there are as many as 2,221 chemical pollutants measured in tap water around the world, some of which are recognized as carcinogens or cancer-promoting substances. From the tap water drinking standards, our country is still at a low level, tap water can only be used to precipitation, filtration, chlorination and other methods of disinfection, river water or groundwater simply processed into potable water. Chlorination of tap water can effectively kill germs, but also produces more halogenated hydrocarbon compounds, these chlorine-containing organics content has increased exponentially, is the biggest source of various gastrointestinal cancers caused by human beings. At present, the composition of urban pollution is very complex, polluted waters in addition to heavy metals, but also contains a lot of pesticides, fertilizers, detergents and other harmful residues, even if the tap water is boiled, the above residues are still driven not to go, and the boiling water increases the concentration of hazardous substances, reduces the amount of dissolved oxygen that is beneficial to human health, and also nitrite and chloroform, and other carcinogens to increase, therefore, the safety factor for drinking The safety factor of boiling water is also not high. According to the latest information, only 23% of the residents of major cities in China's drinking water meets hygiene standards, small towns and rural drinking water qualification rate is even lower. Water pollution prevention and control should ensure that drinking water is qualified as a matter of urgency. To this end, should increase water pollution monitoring efforts, the establishment of water supply source protection zone.

--Written in the 6.5 World Environment Day

June 5 to 16, 1972, the United Nations in Stockholm, the capital of Sweden, held a conference on the human environment. It was the first conference in the history of mankind to study the protection of the human environment on a worldwide scale. The conference put forward a slogan for environmental protection that has been heard around the world: There is only one Earth! The conference produced and publicized the famous Declaration of the United Nations Conference on the Human Environment (Declaration of the United Nations Conference on the Human Environment, or Declaration of the Human Environment for short) and the Action Plan for the Protection of the Global Environment with 109 recommendations, calling on governments and people to work for the preservation and improvement of the human environment for the benefit of all people. It calls upon all governments and peoples to work together to maintain and improve the human environment for the benefit of all people and for the benefit of future generations. Since 1972, World Environment Day has been celebrated on June 5 every year.

The theme of the World Environment Day in 2003 was "Water - the key to the lives of two billion people". This theme aims to call on everyone to take action to ****together to protect the most precious survival resource on earth - water. According to the latest report ("World Water Development Report") released by the United Nations on March 16 this year before the "Third Water Forum Conference", China ranked 128th with an average of nearly 2,260 cubic meters of water per person per year, out of a total of 180 countries and regions with an abundance of water resources. According to normal needs and without over-exploitation of groundwater, China's total annual water shortage is about 30 to 40 billion cubic meters. The area of farmland affected by drought ranges from 7 to 20 million hectares every year. Of the country's 669 cities, 400 have insufficient water supply and 110 have serious water shortages. At the same time, water pollution has made the problem of water shortage even more prominent, with surface water that is undrinkable due to pollution accounting for 40% of the monitored water bodies in the country, and 78% of the river sections that flow through the cities losing the value of their drinking water sources. Even in the cities of the south, water shortages caused by pollution account for more than 60% of the total water shortages in these cities. Rational use of water resources, effective protection of the water environment is of great significance.

In the face of such a severe form, cherish water, water conservation, water protection can not be delayed. In the country to complete the management system, operation mechanism and legal system as a guarantee, to promote the government, water units and the public's *** with the participation of legal, administrative, economic, technical and engineering measures, combined with the adjustment of socio-economic structure, to realize the whole society in the production and consumption of water in the efficient and reasonable, to maintain the sustainable development of the region's economic and social development; in the water resources management department should be combined with the related laws and regulations Requirements, the establishment of water functional areas based on the standard of the total amount of pollutant discharge control system, the original source of pollution discharge amount of equal reduction; actively promote cleaner production; accelerate the speed of construction of domestic pollution control facilities, each division of responsibility, unity and cooperation, *** with the protection and management of water resources; in the water unit, as soon as possible the implementation of cleaner production, and effectively ensure that the "three simultaneous" the implementation of the wastewater to the law in accordance with Standard discharge, and actively explore and use to reduce the amount of wastewater discharge of new processes, new technologies, new equipment; as a citizen in the life and production process through the conservation of water resources and protection of awareness, from the drop by drop, from the self to start, to take practical action to save and protect limited water resources.

May we, through the theme of this year's World Environment Day, become active actors in promoting sustainable and equitable development, so that our motherland will have a secure and prosperous future.

Human protection of the environment is ultimately based on the protection of the earth's increasingly depleted resources, the protection of human survival and development of the minimum conditions - the protection of water resources first. The following author on modern production and life in the protection of water resources to talk about some rough understanding.

First of all, to establish a sense of water, water resources warning education. For a long time, most people generally believe that water is inexhaustible, inexhaustible "pot of gold", the use of wasteful waste, do not know consciously cherish [blocked ads]. In fact, the earth's water resources are not inexhaustible, especially China's per capita water resources are not rich, regional distribution is not uniform, and the year is unpredictable, the inter-annual difference is very large, coupled with serious pollution, resulting in more water scarcity, the Yellow River water more than a number of times is a vivid embodiment of the cut-off. The state initiated the "Yellow River diversion project", "South-to-North Water Transfer" and other water resources utilization issues, the purpose is to solve the problem of water shortage in some areas, but should cause us to think y: the Yellow River water depletion where to "draw yellow "? Southern water pollution how to "northward"? Therefore, people must establish a crisis awareness of water resources, saving water resources as our conscious code of conduct, to take a variety of forms of water resources warning education.

Secondly, we must rationalize the development of water resources to avoid the destruction of water resources. The development of water resources, including surface water resources development and groundwater resources development. Water resources belong to the state, therefore, the development of production and living water must comply with the "Chinese people *** and the State Water Law" of the relevant provisions of the comprehensive planning, integrated and balanced. In the exploitation of groundwater, due to the water quality of aquifers vary greatly, should be exploited in layers; has been contaminated diving and pressurized water shall not be mixed mining; to expose and penetrate the water layer of the exploration project, must be in accordance with the relevant provisions of the strict layering of water and sealing work, effective prevention of water resources contamination to ensure that the water body of its own sustainable development.

Modern water conservancy projects, such as flood control, power generation, navigation, irrigation, aquaculture water supply, etc. in the play of one or more kinds of economic benefits at the same time, on the project site, upstream and downstream, the estuary and even the entire basin of the natural environment and the social environment will have a certain negative impact, but also may cause a certain range of water resources damage, therefore, since the 1970s, many countries on water conservancy projects Environmental assessment. China requires that environmental evaluation be carried out at the feasibility study stage of water conservancy projects, and environmental impact reports should be prepared for large-scale projects and general medium-sized projects, and environmental impact evaluation forms should be prepared for medium-sized projects and small-scale projects that have less impact on the environment. In addition, some of the mining industry on the destruction of water resources can not be ignored, such as coal mining in every ton of coal mining to drain 0.88 cubic meters of water, according to the province's annual coal mining 300 million tons of calculations, each year only due to coal mining loss of groundwater resources as high as 2.5 billion cubic meters, and the geological structure of the groundwater body caused great damage. Another example, unlimited slash and burn, resulting in serious damage to vegetation, soil and water retention and water resources of the surface of the buried will also have a certain impact.

Third, improve the utilization rate of water resources and reduce the waste of water resources. The key to effective water conservation lies in the use of "water" to achieve the reuse of water resources. If the use of water in the whole society can pass, not only can bring considerable economic and environmental benefits, but also can make the community to form a good atmosphere of treasuring water resources. At present, many large and medium-sized enterprises have developed the use of water, such as Huozhou Coal and Electricity Group mines are using water to return to the underground sprinkling and ground flushing toilets, and achieved good economic and social benefits. In addition, the use of economic leverage to regulate the effective use of water resources. Due to the lack of water management, many places have long running water phenomenon, while some places will "hold the bowl and pray to the sky", therefore, effective water metering devices must be installed, the implementation of the principle of more water more billing, to achieve the purpose of water conservation. Urban water quota management is an internationally accepted approach, it is in the scientific approval of the premise of the amount of water, adhere to the principle of classification, the public living water, industrial and commercial enterprises, institutions and organizations to implement different water prices, quota flat price, the excess part of the appropriate increase in price, in order to cultivate the habit of citizens to save water.

In saving water resources should be avoided at the same time ineffective waste. Northern winter, the water pipe is easy to freeze and crack, resulting in serious leakage, special attention should be paid to the prevention and inspection; with the accelerated socio-economic development and urbanization, in order to alleviate the situation of water resources, in addition to vigorously grasp the conservation and protection of water resources, cross-basin transfer of water has become an inevitable choice of cities in the northern part of our country, cross-basin transfer of water will inevitably bring about a change in the relationship between the demand and supply of water resources, so the water rights trading Must be implemented; because our country has been the implementation of "welfare water" system, water has not been treated as an economic commodity, so, in the allocation of water resources, the market mechanism is usually replaced by regulatory methods, the current should change the concept of water resources to recognize the natural attributes and commodity attributes, follow the laws of nature and the law of value, indeed water as a commodity, the rational application of market mechanisms. As a commodity, the rational application of market mechanisms to allocate water resources, reduce resource waste.

Fourth, water pollution prevention and control, and realize the comprehensive utilization of water resources. Water pollution, including surface water pollution and groundwater pollution in two parts, the production process of industrial wastewater, industrial waste, industrial waste gas, domestic sewage and domestic waste can be caused by different penetration of water resources pollution, for a long time, due to industrial production of sewage discharged directly out of the environment caused by environmental events are commonplace, which gives human production, life has brought about a very bad impact, therefore, should be the production, living Therefore, production and living sewage should be effectively prevented and controlled. In the city can take the centralized sewage treatment way; industrial enterprises must implement environmental protection "three simultaneous" system; production of sewage according to the nature of the different sewage treatment measures. In short, we must resolutely implement the supervision and management system of water pollution prevention and control, we must adhere to the principle of who pollutes who manages, strict implementation of the environmental protection one-vote veto system, to promote enterprise sewage treatment work, and ultimately realize the comprehensive utilization of water resources.

Water is the material foundation on which the earth's living creatures depend for their existence, and water resources are the primary condition for maintaining the sustainable development of the earth's ecological environment, therefore, the protection of water resources is the greatest and most sacred vocation of mankind.

The old man with a face full of vicissitudes of life faced with the muddy and stinking Blossom River is full of grief and indignation. As a tributary of the Fen River, Blossom River was originally very clear, and without it, Yuncheng, Shanxi Province, would not be as prosperous as it is today. But now, the river is a disgrace --- the silent old man is holding not only a scoop of sewage, but also the river's sobbing cry for help.

An innocent child pointed to the sewage being secretly discharged from the culvert and said to the adults that because of it, the well water was undrinkable, and the hair would fall out when he washed his hair. This young child, the little head actually bald. Hanging all over the branch is not the verdant green leaves, not the fruit, but millions of wind fluttering, flowery green plastic bags. It looks so smug, it is the human bad deeds to achieve their arrogance.

The hard work of a pool of fish, a stream of sewage pouring in, and ultimately only left the breeder's sigh of relief and a pool of dead fish.

The smoky factories, the villages buried by sand and dust, and the living beings in the sky and on the ground displaced by human beings ...... The Song of Life --- China's Environmental Warning and Education Large-scale Photographic Exhibition opened today at the Chinese Revolutionary Military Museum. Chinese Revolutionary Military Museum. As the spokesperson of the nature with thousands of holes, more than 100 shocking photos are crying out to human beings.

The photo exhibition is a panoramic review of the China Environmental Protection Century Campaign after 10 years of activity, and most of the photos are from the works of China Environmental Protection Century Campaign journalists in recent years. Over the past 3,650 days and nights, hundreds of journalists have traveled through thick and thin, worked hard, and with their professional sensitivity and strong sense of responsibility, used their lenses and pens to faithfully record the history of ecological and environmental changes on the land of China.

A picture of the heart-wrenching photos warns that the earth, the home of mankind, has been destroyed by human beings themselves to the point of fragmentation. Wake up! Those who are still obsessed with destruction.

The exhibition is divided into chapters of Huaihe Scream, Yellow River Ballad, Yangtze River Aria, Green Variation, Blue Row, Golden Ensemble and Hope.

Walking towards the Mother River, I saw cracked ponds and dried up land: the water consumption along the Yellow River has exceeded the carrying capacity of the Yellow River's water resources, and there is a serious shortage of water. 1972 to 1998, the Yellow River had a downstream cut-off for 21 years, and the main channel siltation has worsened. The lower reaches of the Yellow River, the "hanging river on the ground" is becoming more and more dangerous.

Walking toward the mother river, see the black water flowing into the artery of the mother river: in recent years, the Yellow River Basin, "fifteen small" rapid development of polluting enterprises, the amount of sewage discharged into the Yellow River trunk and tributaries amounted to 4.2 billion cubic meters per year, the sewage is becoming more and more serious, and a lot of sections of the river is flowing just sewage.

The Yangtze River is also a sad song. A piece of endless yellow sand land in crying pain: the source of the Yangtze River green is shrinking. According to statistics, the source area of the Yangtze River grassland degradation of more than 25,000 square kilometers. As a result of the impact of rodent damage, 10% has been reduced to "black soil beach" type secondary bare land. Anthropogenic activities have also exacerbated the degradation of pastures. According to satellite remote sensing measurements, the area of grassland in Qinghai Province is degraded at a rate of 2 million mu per year, while the livestock capacity of grassland in Qinghai Province is growing at a rate of 3% per year.

Many visitors were shaken by the photo: uncountable heads of Tibetan antelopes piled on top of each other!

The Tibetan antelope, known as the "plateau spirit", lives in the "world's third pole" --- the Cocosily uninhabited area on the Tibetan Plateau and is a nationally protected animal.

The Tibetan antelope, known as the "Highland Spirit", lives in the "Third Pole of the World" --- the uninhabited area of Cocao Sili, and is a nationally protected animal. 50 years ago, the Tibetan antelope in Cocao Sili had nearly a million heads, and when people discovered its amazing economic value (in the international market, the Tibetan antelope cashmere shawl is priced at $11,000, and the highest price can even be sold for $40,000), it was on the verge of extinction within a couple of decades, and now there are only 50,000 left. It is said that between 1990 and 1998, when poaching was at its peak, 20,000 antelopes fell to poachers every year. For the high profits of cashmere shawls, there are still poachers who take the risk.

On Tianbao Mountain in Diqing, Yunnan province, there is a large area of forest that has been logged out, with waist-high, blackened stumps like tombstones standing silently in the verdant meadows.

There was originally a well-preserved virgin forest there. Although large-scale logging has been stopped at the end of the last century, but after more than 20 years of unscrupulous logging, Diqing in the end destroyed how much of the original forest, and who can say clearly?

Sea River, Liaohe, Huaihe, Yellow River, Songhua River, Yangtze River and Pearl River, seven major river systems, are subject to varying degrees of pollution.

One-third of China's cities have air quality exceeding Level 3 standards. Acid rain and sandstorms hover around us and linger.

The situation of the sea border is not optimistic, and red tides come every year as scheduled. In the beautiful Bohai Bay, the turbid current splashes, floating on the surface of the oil pollution like a black torch to burn the life in the sea.

The ecological damage is worsening, land degradation, soil erosion, shrinking lakes, a sharp decline in biodiversity, the ecological environment has been fragile and vulnerable.

Qu Geping, who is nearly old, was one of the earliest criers for environmental protection in China. The old man stopped to look at each picture. China still has a long way to go to protect the environment," he said, adding that the public should act now!

Water -- the source of life for 2 billion people; water -- the hope for the survival of all things in the world; water -- the most desired goal of mankind. However, such precious, sacred water of life, but because of human selfishness, human greed, under the destruction of mankind, destroyed everything.

Slowly, slowly, the world's water-scarce countries, water-scarce provinces, cities and autonomous regions more and more. At present, there are 335,000,000 people in the world alone do not have enough water. With the gradual development of scientific endeavors, the gradual increase in the number of high-rise buildings, the water shortage problem is more and more serious. With the destruction of mankind, the original azure "crystal ball" is no longer clear, no longer blue, is about to dry up.

Although 71% of the earth's surface is covered with water, but in fact, freshwater resources only account for about 2% of the earth's total water, and can be utilized by human beings on the earth's total amount of freshwater only three hundred thousandths of the total amount of water, accounting for the total amount of freshwater savings of 0.34%. It can be seen that the water on earth that can be utilized is not as much as human beings think, if we let them continue to be destroyed by human beings, sooner or later, it will disappear one day. Therefore, we should protect water resources and do our part to protect them.

While I am still a 12-year-old elementary school student, I want to use that sacred pen in my hand to call for the protection of water resources.

Water's self-description

I am water, pure, beautiful, elegant, noble water, I come from the snow, I come from the mountains, slowly, slowly, penetrate the mountains, across the plains, into the sea.

I am water, crystal snow, my predecessor, sweet rain, my brother, bitter tears, my sister. My footprints are all over the earth, and my arms caress every corner.

It is only because of me that life is so perfect; it is only because of me that everything in the world is so perfect. I not only but the field of rich "nutrients", is the crop "growth agent", but also a must-have for human beings. I need to wash rice and vegetables, laundry and irrigation need me, people thirsty to drink is me, dirty wash is me, urgent use is me, but constantly destroy is also me.

I have brought happiness to mankind, but why did mankind do this to me? I silently and selflessly feed the earth. I gurgle in the waist of the mountains, run happily in the middle of the grassland, and surge in the embrace of the sea. I am kind and loyal. I dedicate everything to mankind, in the face of human indifference and heartlessness, I will be involuntarily angry, flooding, can dominate everything is the characters, can destroy the ecological environment, but also human Today China is facing two major problems: one is the resource problem, the second is the environmental problem, in which the resource problem, China's per capita water resources possession is the world's average per capita possession of half of the amount. Environmental problems, my degree of pollution is self-evident, I was "violated", will affect the growth of aquatic organisms and crops, increase the spread of diseases and illnesses, endangering human health. Therefore, the protection of the environment is an urgent fact, the implementation of sustainable development strategy is to accelerate the socialist modernization of the inevitable shortcut. Humans have only one home, please care for this only cradle.

Therefore, I hope to be cherished by human beings, and moreover, I hope to be protected by human beings. Please stop, don't toss me anymore!

Where is the green mountain now?

Curtains of the past, or easy to come back from time to time.

The water in my hometown is very beautiful! Flat flow of quiet as a picture, and the green mountain mirror each other, so the green mountain of green; some will become a stream, everywhere. That is the hometown water.

When you reach out and caress it, it slips through your fingers, soft and cool. When I first arrived there, I went there every day to wash my face with that water. It was the middle of summer, so I swam in it with my dad. "Thud!" A jump into the water, suddenly washed away all the tiredness, cool all over the body, as if in the earth's paradise in general.

Again, after five years, I came here again with my dad and grandmother. As soon as we arrived at the river, we were stunned by what was in front of us. I could hardly believe that this was the water of my y unforgettable hometown.

And Hunan's famous Xiangjiang River

Listening to my parents, I heard that in the past, the water of the Xiangjiang River was especially clear, and many people came to swim in the hot summer. People affectionately called it the "Green River".

Now, however, the ancient Xiangjiang River has been swallowed up, only to see the surface of the river floating full of plastic, medicine bottles, white pollution ...... issued a disgusting stench. The Xiangjiang River, known as the "Green River", has become a "dead river".

Suddenly, I realized that today's people are obsessed with the pursuit of development, while ignoring the importance of protecting the environment and water resources.

The whole river echoed with the river's sigh of relief: "People have destroyed my body!

Alas! Where are the green hills and green waters now?

If we lose the water ......

People, people!

If you lose water, what will you drink? What will you use to irrigate every inch of land, what will you use to moisturize every blade of grass? If there is no such a beautiful water, and where is Su Shi's ancient saying, "the water brimming with sunny side good"? If there is no water, where is everything in the world?

When we face this kind of water, you will still praise its beauty, sigh its vitality? In the face of the facts in front of us, is it not enough for people to ring the alarm bell of the water, wake up people's awareness?

As the saying goes: "Lost, only know how to cherish!"

People, do you really want to let the last drop of water become the tears of human heartbreak, remorse and realization? Please don't lose it before you know how precious it is, and by then I'm afraid it's useless to regret it.

Please cherish every drop of water! Don't trample on it anymore. Think of it as a reward for the water!