Why does China's water-saving sign protect water resources by caring for life?

According to environmental monitoring, about 1 million tons of sewage is directly discharged into water bodies every day in China. More than half of the seven major water systems in China are polluted. Of the 35 key lakes, 17 are seriously polluted, and one-third of the country's water bodies are not suitable for irrigation. More than 9% of urban waters are seriously polluted, more than 5% of urban water sources do not meet drinking water standards, 4% of water sources are no longer drinkable, and 6%~7% of the total water shortage in southern cities is caused by water pollution.

one water for multiple purposes

7% of the earth's surface is covered with water, with about 1.4 billion cubic meters of water, 96.5% of which is seawater. Although the rest is fresh water, more than half of it is ice, and the water resources that can be directly utilized such as rivers and lakes only account for about .3% of the total water.

Use detergents with caution

Most detergents are chemical products, and a large amount of wastewater with high detergent content will be discharged into rivers, which will worsen the water quality. Improper use of detergents for a long time will damage people's central system, hinder people's intellectual development, reduce their thinking ability and analytical ability, and even cause mental disorders. Detergent residue on clothes will stimulate allergic dermatitis on the skin. If the detergent with high concentration is used for a long time, carcinogens in the detergent will enter the human body from the skin and mouth, which will damage health.

Don't forget that you are breathing all the time

The monitoring results of the Global Atmospheric Monitoring Network show that the daily average concentration of total suspended particles in the atmosphere of Beijing, Shenyang, Xi 'an, Shanghai and Guangzhou is 2~5 micrograms per cubic meter, which is 3~9 times higher than the standard of the World Health Organization, and is listed among the top ten polluted cities in the world.

save one degree of electricity and reduce one pollution

China is a country with thermal power generation as the main energy source. Coal accounts for more than 7% of the disposable energy structure. If it develops in the conventional way, to reach the level of developed countries, it needs at least 1 billion tons of coal equivalent energy consumption, which is equivalent to the sum of global energy consumption. When coal is burned, it will release a lot of harmful gases, seriously pollute the atmosphere, form acid rain and cause greenhouse effect.

save electricity

a large amount of coal, natural gas and petroleum fuel are used in industry, commerce, housing and transportation. The excessive carbon dioxide generated when these fuels are burned is like a glass cover, which blocks the ground heat from radiating to outer space and keeps the hot gas in the atmosphere, thus forming a "greenhouse effect". The "greenhouse effect" causes global meteorological variation, resulting in catastrophic droughts and floods, and melting icebergs in the North and South poles, leading to sea level rise. Scientists estimate that if the trend of climate warming continues, low-lying areas such as Bengal, Holland, Egypt, China and some island countries will be in danger of being swallowed up by seawater.

reduce energy consumption

when burning, fuels such as coal emit oxides of carbon and nitrogen in the form of gas. These oxides combine with water vapor in the air to form highly corrosive sulfuric acid and nitric acid, and then fall back to the ground together with rain, snow and fog. This is acid rain called "death in the air". There are three major acid rain areas in the world: the United States and Canada, northern Europe and southern China. Acid rain can not only strongly corrode buildings, but also acidify the soil, resulting in the death of trees, the reduction of crop production, the acidification of lake water quality and the death of fish and shrimp. Due to the extensive use of coal fuel in China, the annual economic loss caused by acid rain pollution is about 2 billion yuan. At present, the acidity of precipitation in acid rain areas in China is still rising and the area is still expanding.

Everyone uses energy-saving lamps

"China Green Lighting Project" is one of the key energy-saving projects in China. Energy-saving and efficient lighting lamps and lanterns will be popularized throughout the country, which can save coal burning in corresponding power plants and reduce the emissions of sulfur dioxide, nitrogen oxides, dust, ash and carbon dioxide.

Utilizing renewable resources

At present, 9% of the energy used by human beings is oil, natural gas and coal. The formation process of these fuels takes hundreds of millions of years, and they are non-renewable resources. Solar energy, wind energy, tidal energy and geothermal energy are renewable and are called renewable energy. People call those energy sources that do not pollute the environment "clean energy".

I'm proud to take the bus.

There are nearly 1.2 million motor vehicles in Beijing, the capital of China, which is only 1/6 of that in Tokyo and new york. However, the concentration of pollutants emitted by each vehicle is 3~1 times higher than that of similar foreign motor vehicles. 73% of hydrocarbons, 63% of carbon monoxide and 37% of nitrogen oxides in Beijing's atmosphere come from motor vehicle emissions. Therefore, citizens are encouraged to go out by bus.

Protecting the atmosphere begins with the first step

In Europe, many people are willing to go to work by bike in order to reduce the air pollution caused by driving. Such people are respected as environmental defenders. American newspapers often mobilize people to buy as many necessities as possible when shopping in supermarkets, so as to save gasoline and reduce air pollution. The influential American Bicycle Association has been calling on the government to build bicycle lanes when building roads. In Germany, many families like to go out in the same car with their neighbors to reduce the emission of automobile exhaust. In order to clean the city air, Tehran, the capital of Iran, has stipulated "selfless car day". On this day, the Iranian president also goes to work by bus with the citizens. In Shanghai, China, some company employees often share a taxi, which is called "fight".

reduce tail gas emissions

the law of the people's Republic of China on the prevention and control of air pollution stipulates that motor vehicles and ships shall not discharge pollutants into the air in excess of the prescribed emission standards, and control measures shall be taken for motor vehicles and ships that exceed the prescribed emission standards. Vehicles that discharge pollutants in excess of the national emission standards shall not be manufactured, sold or imported.

use unleaded gasoline

cars that use leaded gasoline will emit lead through exhaust gas. These lead particles will harm people's nervous system and accumulate in people's bones after entering the human body with breathing; If it falls into soil or rivers, it will be absorbed by various animals and plants and enter the human food chain. Lead accumulated in the human body to a certain extent will cause anemia, hepatitis, pneumonia, emphysema, angina pectoris, neurasthenia and other diseases.

Cherish paper

The sharp increase in paper demand is one of the reasons for the increase in wood consumption. The annual consumption of paper in China is 1 million cubic meters, 1.3 million tons of imported wood pulp and 4 million tons of imported paper. How many trees will be cut down here! The large consumption of paper not only causes forest destruction, but also seriously pollutes rivers and lakes due to the sewage discharged from pulp production (the pollution caused by the paper industry accounts for more than 3% of the total water pollution).

using recycled paper

China's forest coverage rate is only 1/4 of the world average. According to statistics, China's forests have been sharply reduced by 23% in the past 1 years, and the felling stock has been reduced by 5%. The natural forests in Xishuangbanna, Yunnan Province have been disappearing at a rate of about 16, hectares every year since the 195s. At that time, 55% of the original forest coverage area has been reduced by 1/2.

Reducing cards to save trees

In recent years, Japanese people with various manners are also changing the habit of giving a large number of New Year cards. Some big companies advertise that they will no longer send greeting cards by post. College students in our country organized the activity of "saving cards to save trees", advocating saving money for buying greeting cards to plant trees and protect nature.

grain warning line

China has more than 13 million hectares of cultivated land, accounting for 7% of the world's cultivated land. The per capita arable land is less than 47% of the world average, and the per capita arable land in more than 6 counties (districts) in the east is lower than the warning line of .5 hectares determined by FAO.

control noise pollution

noise will interfere with the normal life of residents and damage people's hearing. Noise has obvious effects on human nervous system and cardiovascular system. People who have been exposed to noise for a long time will have symptoms such as headache, brain swelling, palpitation, memory loss and fatigue. Noise can also affect the digestive system, which can lead to coronary heart disease and arteriosclerosis.

maintaining a peaceful environment

according to german regulations, when using audio equipment indoors, the volume should be clearly audible indoors. American law stipulates that noise courses should be set up in schools. According to British regulations, audio equipment is not allowed for advertising, entertainment and business activities, and it is not allowed to be used in public places at night. In Japan, it is stipulated that the noise generated by night operation in catering industry and the noise generated by publicity with audio equipment should be controlled, and vehicles should not produce unnecessary noise that affects others, and unnecessary idling of vehicles is prohibited.

Recognition of "environmental label"

Environmental protection products that have been certified by China Green Label Certification Committee include low-fluorine household refrigeration appliances, fluoride-free hair mousse and styling gel, unleaded gasoline, cadmium-free mercury-lead rechargeable batteries, phosphorus-free fabric detergents, low-noise washing machines, energy-saving fluorescent lamps and so on. These environmental label products are labeled with "China Environmental Label". The central structure of the logo graphic is green hills, green waters and the sun, indicating the environment on which human beings depend, and the 1 rings around it indicate that the public participates in protecting the environment.

Using fluorine-free products

Chlorine atoms in freon have a great destructive effect on the ozone layer, which can decompose ozone that absorbs ultraviolet rays and make the ozone layer thinner. Intense ultraviolet radiation will damage the immune function of people and animals, induce skin cancer and cataracts, and destroy the ecosystem on the earth. In 1994, the largest ozone hole was observed in Antarctica, with an area of 2,4 square kilometers. According to relevant data, crops have been damaged and pasture animals have been blind in southern Chile, which is located on the edge of Antarctic ozone layer. The ozone layer over the Arctic is also thinning. At present, 24 developed countries, which were the first to use CFCs (freon is a kind of CFC substance), have signed the Montreal Protocol to restrict the use of CFCs, and the 199 amendment set the time for developed countries to ban the use of CFCs at 2. In February, 1993, the China government approved the "China ODS Phase-out Program", and decided to completely phase out ozone-depleting substances in 21.

Choose phosphorus-free washing powder

Most washing powders produced in China contain phosphorus. The annual output of washing powder in China is 2 million tons. According to the average phosphorus content of 15%, more than 7 thousand tons of phosphorus are discharged into surface water every year, which has a great impact on rivers and lakes. According to the investigation, the total phosphorus levels in Dianchi Lake, Erhai Lake and Xuanwu Lake are quite high, and the phosphorus brought by washing powder in Kunming's domestic sewage exceeds 5% of the total phosphorus load. After a large amount of phosphorus-containing sewage enters the water body, it will cause algae to grow wildly in the water body, make the water body eutrophic, reduce the oxygen content in the water, and die of hypoxia. Water has thus become stagnant water and smelly water.

Buy environmentally-friendly batteries

The batteries we use every day generate electricity by chemical action, or in layman's terms, by corrosion. And its corrosion contains a lot of heavy metal pollutants-cadmium, mercury, manganese and so on. When it is abandoned in nature, these toxic substances slowly overflow from the battery, enter the soil or water source, and then enter the human food chain through crops. These toxic substances will accumulate in the human body for a long time and are difficult to eliminate, damaging the nervous system, hematopoietic function, kidneys and bones, and some can cause cancer. The battery can be said to be how much it is produced and how much it is discarded; Centralized production and decentralized pollution; Short-term use, long-term pollution

Choose green packaging

Ecological environment Beijing produces 4.3 million tons of garbage every year, and produces 12, tons of garbage every day. The average person throws out about 1 kg of garbage every day, which is equivalent to piling up two Jingshan mountains every year. At present, the amount of garbage produced in China is four times that in 1989, and a large part of it is caused by over-packaging. The packaging cost of many commodities, especially cosmetics and health products, has accounted for 3%~5% of the cost. Over-packaging not only causes great waste, but also increases the economic burden of consumers. At the same time, it also increases the amount of garbage and pollutes the environment.

recognize green food

at present, there are more than 3 green food production enterprises in China, and more than 7 kinds of green food are developed and produced according to the green food standards, and the products involve various food categories such as beverages, alcohol, fruits, dairy products, cereals and aquaculture. Other green foods, such as whole wheat bread, fresh whole grains, beans and mushrooms, are also very beneficial to human health.