The existence of water body makes it lose its original ecological function and use value.
Environmental pollution not only causes direct damage and influence to the ecosystem, but also the accumulation, migration and transformation of pollutants will cause various derived environmental effects, thus causing indirect harm to the ecosystem and human society. Sometimes this indirect environmental impact is more harmful than the direct harm caused at that time, and it is more difficult to eliminate.
Except ... For example, the greenhouse effect, acid rain and ozone layer destruction are all environmental impacts caused by air pollution. This kind of environmental effect from environmental pollution is lagging behind, and it is often difficult to be detected or predicted when pollution occurs. However, once it happens, it means that environmental pollution has developed to a very serious degree. Of course, the most direct and easily felt consequence of environmental pollution is to reduce the environmental quality of human beings and affect their quality of life, physical health and production activities. For example, urban air pollution causes air pollution, and the incidence of people is rising. Water pollution worsens the quality of water environment, and the quality of drinking water sources generally declines, threatening people's health and causing premature birth or malformation of fetus. serious
Pollution incidents not only bring health problems, but also cause social problems. With the intensification of pollution and the improvement of people's awareness of environmental protection, disputes and conflicts between people caused by pollution have increased year by year.
At present, environmental pollution problems have appeared in different degrees all over the world, including atmospheric environmental pollution, marine pollution and urban environmental problems. With the globalization of economy and trade, environmental pollution is becoming more and more international, and the transboundary movement of hazardous wastes has also appeared in recent years.
It is the outstanding performance in this respect.
② Causes of environmental pollution
Generally speaking, environmental pollution can be the result of human activities and natural activities, or the result of the interaction of these two activities. For example, volcanic eruption releases a lot of harmful gases such as dust and sulfur dioxide into the atmosphere, which will also cause air pollution. But usually, environmental pollution is caused by human activities, especially social and economic activities. What we usually refer to is the environmental pollution caused by such human activities. The reason why human activities cause environmental pollution is because
Because there is a fundamental difference between human beings and other creatures: in addition to their own production, human beings also carry out larger-scale mass production, which all other creatures do not have. Because of this, the intensity of human activities is far greater than that of other creatures. For example, in the use of water in the ecosystem, other organisms only use the amount that meets their survival requirements, and humans don't know how many times more water is used than other organisms, so that some local ecosystems are not enough. The emission source of pollutants is called pollution.
Source. The situation of various pollution sources will be described in the fourth section.
Environmental pollution can be classified from different angles. According to the type of environmental pollution system or its leading elements, it can be divided into air pollution, water pollution, soil pollution and so on. According to the social field where pollution sources are located, they can be divided into industrial pollution, agricultural pollution and traffic pollution. According to the form or nature of pollutants, they can be divided into waste gas pollution, waste water pollution, solid waste pollution and noise pollution.
Dyeing, radiation pollution, etc.
100 Small things you can do to protect the environment.
Use a cloth bag
When we go shopping in shops or farmers' markets, almost everything comes with plastic bags. When we get home, these plastic bags are often thrown into the dustbin immediately. As garbage, plastic bags have left our home, but they have not disappeared in this world. In most parts of our country, plastic bags can be seen everywhere. When the wind blows, they will fly in the air and land on branches and rivers, which will affect health and city appearance. Plastic bags increase the amount of garbage, occupy cultivated land and pollute soil and groundwater. What's more, plastic materials can't be degraded in nature for hundreds of years, and if they burn, they will produce toxic gases. It was convenient for the first time, but it threw the garbage to future generations. Is this appropriate? Take Beijing as an example. If an average person consumes a plastic bag (weighing about 0.4 grams) every day, 4 tons of plastic bags will be thrown away every day, and the price of raw materials alone will reach 40,000 yuan. Small plastic bags are really harmful. We used to buy food with reusable baskets and cloth bags, but only in recent years have plastic bags been widely used. We should restore the fine traditions of the past. German young people are proud of shopping with bags. Let's follow this "green fashion".
Try to take a bus.
1943, residents of Los Angeles, USA, found a white mist in the air, sometimes yellowish brown, which stimulated people's eyes to cry. This fog became more and more serious, but it was not until 10 years later that the real culprit-the car was found. There were two photochemical smog incidents in Los Angeles at 1955 and 1970. In the former, more than 4,000 people died of five senses poisoning and respiratory failure, while in the latter, 3/4 people in the city fell ill. From May to 65438+ 10 every year, under the strong sunlight, the exhaust gas emitted by automobiles forms photochemical smog, which causes eye diseases, laryngitis and headaches, reduces atmospheric visibility, and increases traffic accidents and plane crashes. Nowadays, the control of automobile exhaust has achieved considerable success, but the rapid increase in the number makes automobiles still the main source of urban air pollution. It is reported that photochemical smog pollution has also appeared in some big cities in China in recent years. Not only that, the process of making cars consumes natural resources, but also emits pollutants, and cars will also produce noise and other hazards. Moreover, the number of cars is increasing, which puts great pressure on urban traffic and causes traffic congestion. These have seriously troubled our lives, and one of the solutions is to take fewer cars and advocate taking buses.
Don't go overboard in fashion.
4. Do not enter the core area of nature reserve.
Promote walking and cycling.
6 Do not use non-degradable plastic lunch boxes.
7 It is forbidden to set off fireworks and firecrackers.
8 Use paper on both sides
9 save food
10 refused to use disposable items.
1 1 Eat meat moderately.
12 Turn off the tap.
13 multi-purpose water
14 Try to buy local products.
15 Turn off the lights to save electricity.
16 refused to over-package.
17 using economical water tools
18 refused to use precious wood products
19 refused to use disposable chopsticks.
Make full use of solar energy.
2 1 Use renewable materials as much as possible.
22 Use energy-saving lamps
23 Simplify house decoration
24 repair the old and use the waste
Don't take soil at will.
Use more soap and less detergent.
27 Do not occupy cultivated land indiscriminately.
Don't burn straw
Don't interfere with the free life of wild animals.
Don't intimidate or feed the animals in the male feeding area.
3 1 Don't eat frogs, protect frogs and protect farmers.
Advocate bird watching and oppose bird closing.
Don't pick up the eggs of wild birds
Refuse to eat wild animals
Use less hair gel.
36 calories to save trees.
Don't wear clothes made of wild animal fur.
Don't fish in rivers and lakes.
Use less canned food and drinks.
There is no Christmas tree.
4 1 Not burning in the wild.
Don't buy wild animal products.
Don't throw cigarette butts.
Don't pick wild vegetables to eat.
Know the animals and plants under special state protection
Making and purchasing animal and plant specimens are not encouraged.
Do not keep wild animals as pets.
Observe the small animals and birds around you and provide them with convenient living conditions.
Don't take part in animal cruelty.
Buying animals and releasing them are not encouraged.
5 1 Don't watch the monkey show in the street.
Help animals when they are in trouble, but don't help them when they are free
Don't mistreat animals.
See the lasso, clip and cage net that trap animals removed decisively.
Plant flowers and grass indoors and in hospitals.
Plant trees in front of and behind the house.
Save paper and recycle waste paper
58 garbage sorting and recycling
Donate old things to the poor.
60 recycling waste batteries
6 1 scrap metal recycling
Recycling waste plastics
Recycling waste glass
Try to avoid producing toxic garbage.
Use a fluorine-free refrigerator
66 Use less diapers
Use less pesticides
Use less chemical fertilizer and try to use farmyard manure.
Use less indoor pesticides.
Don't burn anything that may produce toxic gas.
7 1 I don't smoke, so I advise others to smoke less.
72 Eat less gum
Do not pursue the rapid upgrade of computers.
74 intensive use of goods
Give priority to buying green products.
76 private cars regularly check the exhaust gas.
Use unleaded gasoline
Don't dump garbage in rivers, lakes and seas.
Choose big bottles and bags of food.
Understand the water distribution and pollution situation in my hometown.
8 1 Support environmental fundraising
Oppose luxury and simple life.
Support environmental protection stocks
Organize voluntary labor and clean streets and beaches.
Avoid tourism pollution
Participate in environmental protection publicity
Be an environmental volunteer
88 Understanding Grassland Crisis
Understanding desertification
Understanding and protecting forests
9 1 Understanding and Protecting the Ocean
92 Take care of ancient and famous trees
Protection of cultural relics and historic sites
Report the behaviors that damage the environment and ecology in time.
Pay attention to the news media's reports on environmental protection
96 control the population and persuade the super-life.
Use every green anniversary to raise environmental awareness.
Read and circulate environmental protection books, newspapers and periodicals.
Understand the signs and meanings of green food.
100 Understanding environmental protection signs