People always think that the sea, land, and air on the earth are endless, so they never worry about sending thousands of tons of waste gas to the sky, and dumping hundreds of millions of tons of garbage into the ocean. Everyone thinks that the world is so big. What is this waste? We are wrong. In fact, although the earth is large, the creature can only live in the range of 8 kilometers above sea level to 11 kilometers below the sea level, and 95% of the creatures can only live in the middle about 3 kilometers. Within the scope, people have deliberately smeared this limited living environment from three aspects.
Ocean pollution: mainly crude oil leaking from oil tankers and oil wells, pesticides and fertilizers used in farmland, sewage discharged from factories, and acidic solutions from mines; they cause most of the marine lakes to be polluted, resulting in not only marine life. Victims, birds, and humans may also be poisoned by eating these creatures.
Land pollution: The cleanup of garbage has become an important issue in major cities. Many of the 10 million tons of garbage per day cannot be incinerated or corroded, such as plastic, rubber, glass, aluminum, and other wastes. They have become the first in urban hygiene. Enemy.
With the development of science and technology and the improvement of people’s living standards, environmental pollution is also increasing, especially in developing countries. Environmental pollution has become one of the common problems of all countries in the world.
The negative impact of high industrial development is not expected, and the prevention is unfavorable, leading to three major global crises: resource shortage, environmental pollution, ecological damage. Humans continue to discharge pollutants into the environment. But because of the atmosphere, water, soil, etc. The role of diffusion, dilution, redox, biodegradation, etc. The concentration and toxicity of pollutants will naturally decrease. This phenomenon is called environmental self-purification. If the discharged substances exceed the self-purification capacity of the environment, the environmental quality will change badly. Harmful to human health and survival, this has caused environmental pollution.
Environmental pollution will reduce biological production and increase environmental damage.
The main sources of environmental pollution are as follows:
1) Waste smoke, waste gas, waste water, waste residue, and noise discharged from the factory.
2) Waste smoke, exhaust gas, noise, drowning, and garbage discharged from people’s lives.
3) Water that is used after irrigation of farmland using chemical substances such as fertilizers, pesticides, and herbicides.
4) My wastewater and waste residue.
The harm of marine pollution is self-evident. Marine pollution, deterioration of water quality has brought serious environmental protection to human health and human life, and production is the biggest problem facing human beings in modern life.
For the sake of the future of the earth, we must work hard from now on to protect the environment.