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What does environmental pollution mean?
Environmental pollution refers to natural or man-made destruction, adding certain substances to the environment, which exceeds the self-purification ability of the environment and causes harm. (or due to human factors, the environment is polluted by harmful substances, which adversely affects the growth and reproduction of organisms and the normal life of human beings. )

Due to human factors, the composition or state of the environment has changed, and the quality of the environment has declined, thus disturbing and destroying the ecosystem and the normal production and living conditions of human beings.

Environmental pollution will cause direct damage and influence to the ecosystem, such as desertification and forest destruction, and will also cause indirect harm to human society. Sometimes this indirect environmental impact is more harmful than the direct impact at that time, and it is more difficult to eliminate.

Extended data

Every example of environmental pollution can be said to be a wake-up call from nature to mankind. In order to protect the ecological environment and maintain the health of human beings and future generations, we must actively prevent and control environmental pollution. If the environment is not protected, mankind will face extinction.

The concentration and toxicity of pollutants will naturally decrease. If the discharged substances exceed the self-purification capacity of the environment, the environmental quality will change adversely, endangering human health and survival, and environmental pollution will occur.

Environmental pollution will reduce biological yield and aggravate environmental damage.

Environmental pollution sources mainly include the following aspects:

1, waste smoke, waste gas, waste water, waste residue and noise discharged by the factory;

2. Waste smoke, waste gas, noise, dirty water and garbage discharged in people's lives;

3. Exhaust gas and noise emitted by vehicles (all fuel vehicles, ships, airplanes, etc.). );

4, a large number of chemicals such as fertilizers, pesticides, herbicides, etc. , water from farmland irrigation;

5. Mine wastewater and waste residue;

Baidu encyclopedia-environmental pollution