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The so-called environmental problems refer to the changes in the quality of the environment caused by human activities on the environment around people, and the impact of such changes on human production, life and health.
Key features of China's environmental problems include:
1. The polluted area is wide. Such as climate warming, ozone layer depletion, acid rain, depletion of freshwater resources, etc.
2. The ecological damage is serious and the restoration is difficult. Such as the sharp decline of biodiversity, soil degradation and desertification, forest area, etc.
3. Sudden and serious pollution incidents occur frequently, and the pollution of chemicals is becoming more and more serious and the transfer speed is fast.
4. Pollution is complex, has a wide range of impact, and has long-term harm.
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In the city, the environment is seriously polluted.
In rural areas, ecological damage is serious.
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1. Air pollution.
China's sulfur dioxide emissions rank first in the world. Air pollution is currently the number one environmental problem in China.
2. Water environment pollution.
The pollution degree of China's seven major water systems is: Liaohe River, Haihe River, Huai River, Yellow River, Songhua River, Pearl River, and Yangtze River, of which 42% of the water quality exceeds the 3 categories of standards (can not be used as a drinking water source), and 36% of the urban river sections in the country are inferior to 5 categories of water quality, which has lost its use function. The water quality of large freshwater lakes (reservoirs) and urban lakes is generally poor, and more than 75% of the lakes have increased eutrophication, mainly caused by nitrogen and phosphorus pollution.
3. Garbage disposal problems.
At present, the comprehensive utilization rate of industrial solid waste in China is about 46%. Less than 10% of the country's municipal solid waste meets the requirements for harmless treatment. White contamination from plastic packaging and agricultural films has spread across the country.
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I think the problem of garbage disposal will be more prominent, and we must do a good job of garbage classification, so that the garbage can be better disposed of.
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At present, China has the most prominent environmental problem of air pollution, because many parts of the country often exceed the standard.
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Air pollution, water pollution, and garbage are particularly abundant, and these three problems are the most prominent. Therefore, we must pay attention to it and take care of the environment.
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People are still not very conscious, so there is often littering in their lives, and sewage is discharged into rivers, which causes pollution to the environment.
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Air pollution, water pollution, garbage disposal, land desertification and sand disasters, soil erosion, drought and floods, biodiversity destruction, WTO and the environment, environmental problems in the Three Gorges Reservoir area, persistent organic matter pollution, etc.
Governance: To implement environmental protection work, it is necessary to rely on scientific mechanisms. The environmental protection working mechanism is responsible for the environmental quality of the jurisdiction, the environmental protection department implements unified supervision and management of the environmental protection work, and the relevant departments are responsible for the division of labor.
Ecological and environmental problems can generally be divided into three categories:
1) Ecological damage caused by the irrational exploitation and utilization of natural resources. It mainly includes the sharp decline of biological species, soil erosion, land desertification, etc.
2) Environmental pollution. For example, the "three wastes" (wastewater, waste gas, waste residue) pollution, noise pollution, pesticide pollution, etc., caused by urbanization and the high development of industry and agriculture; Global warming, acid rain pollution, ozone layer depletion.
3) Shortage of resources. Water shortage, land resource shortage, etc.
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