What is the status quo of land pollution? What is land pollution and environmental pollution?

There are environmental problems around us, such as marine pollution, light pollution, air pollution, and land pollution.

Land pollution is a phenomenon and process in which land is invaded by mining or industrial wastes or agricultural chemicals, which deteriorates the original physical and chemical properties of the soil, reduces the production potential of the land, deteriorates the quality of the product, and causes harm to humans, animals and plants. According to different pollution sources, it can be divided into four categories: industrial pollution, transportation pollution, agricultural pollution and domestic pollution.

Land pollution inevitably causes and promotes the pollution of other environmental elements. The main prevention and control measures include: biological control, application of inhibitors, application of organic fertilizers, strengthening the management of paddy fields, changing the farming system, changing the soil, turning the soil, etc.

Secondary pollution. All kinds of domestic sewage and domestic garbage produced by people in their daily life have also seriously polluted the urban and rural environment. Certain factors or additives in the land environment will also constitute pollution to its own environment, such as pollution caused by agricultural plastic films, pesticides, fertilizers, etc.

Land pollution inevitably causes and promotes the pollution of other environmental elements.

For example, when the amount of pollutant substances entering the land exceeds its capacity and self-purification capacity, it causes pollution of water, organisms and the atmosphere. It can even lead to a decline in the yield and quality of crops, cause pollution of crops, and then endanger human health through the food chain.

Land pollution refers to the state in which the presence of toxic and harmful substances in the soil exceeds human health and environmental safety standards, causing potential risks to the land ecosystem and human health. Land pollution can be caused by a variety of factors, including industrial waste, pesticides, fertilizers, oil and mineral extraction activities, landfills, etc.

At present, the current situation of global land pollution is severe. Here are some important points to learn about the current state of land pollution:

Land contamination is widespread: Land in many areas suffers from varying degrees of pollution, especially in industrially developed areas and peri-urban areas. Farmland, industrial land, old factory land, and waste disposal sites can all be contaminated.

There are many types of pollutants: Land pollution involves a variety of toxic and harmful substances, including heavy metals (such as lead, mercury, cadmium), organic compounds (such as pesticides, petroleum hydrocarbons), radioactive materials, and harmful pathogens. These substances cause harm to soils, water sources and ecosystems and can enter humans through the food chain.

Ecological and environmental damage: Land pollution leads to the decline of soil quality, destroys the growth of vegetation, and affects the sustainable development of crops and animal husbandry. At the same time, land pollution may also pollute water sources and groundwater, endangering water security.

Increased health risks: Land pollutants can enter the human body through air, soil, water and other ways, causing potential health hazards. Long-term exposure to soil pollutants may cause diseases of the respiratory, nervous system, digestive system, etc., and is associated with cancer, developmental abnormalities, immune dysfunction and other problems.

Hindering sustainable development: Land pollution poses challenges to sustainable socio-economic development. The inefficient use of contaminated land limits the sustainability of agricultural, industrial and urban development, increasing the burden of remediation and the cost of environmental remediation.

Land pollution refers to the fact that some of the things I use in my life will pollute the land, but many people don't know it. One of the most serious is the serious pollution caused by the heavy metal plant, heavy metals will bring some compounds to cause great damage to the land, at the beginning it will not have a great impact, but over time, the harmful substances of the soil will be more and more, more than the self-purification ability of the soil, at this time it will cause changes in soil structure, organization, and function, some microbial activities will be inhibited, serious will lead to the death of microorganisms, at this time the harmful substances will decompose into the soil and gradually through the soil to the plant, In the end, it will be absorbed by the human body, or Hahui will pass through the soil to the water, and finally into the human body, so soil pollution will directly affect people's health and will harm people's bodies, which is land pollution. After reading the explanation of land pollution, everyone should not litter casually in the future, and return the land to a clean place.

What are the main types of land pollution?

There are four main types of land pollution: chemical pollutants, physical pollutants, biological pollutants and radioactive pollutants, and the four major pollution types are subdivided as follows:

1.Chemical contaminants.

Chemical pollution includes 2 types of organic pollution and inorganic pollution, as follows:

1) Organic pollution mainly includes sewage discharge, waste gas, chemical fertilizers, pesticides, solid pollution, etc., and finally will lead to soil erosion or wind erosion.

2) Inorganic pollution mainly includes industrial sewage, acid rain, exhaust emissions, accumulations, agricultural pollution, etc., which will simply and indirectly affect land pollution.

2.Physical contaminants.

It refers to solid waste from factories and mines, such as tailings, waste rock, fly ash and industrial waste.

3.Biological contaminants.

It refers to municipal waste with various germs, waste water and waste from sanitation facilities (including hospitals), as well as manure.

4.Radioactive contaminants.

It mainly refers to the radioactive elements that exist in the nuclear material mining and atmospheric nuclear areas, such as strontium and cesium, which have a long survival time in the soil.

In summary, it can be seen that most of the objects in our lives contain land pollution.

Soil pollution is the rapid development of industry, solid waste is constantly piled up and dumped on the soil surface, harmful wastewater continues to penetrate into the soil, and harmful gases and dust in the atmosphere continue to fall into the soil with rainwater.

The ways of pollutants entering the soil are diverse, the pollutant substances contained in the exhaust gas, especially the particulate matter, sink to the ground and enter the soil under the action of gravity, the wastewater carries a large number of pollutants into the soil, and the pollutants in the solid waste directly enter the soil or its exudate enters the soil.

Chief among these is soil contamination from sewage irrigation. The extensive use of pesticides and chemical fertilizers has led to a decline in soil organic matter content and soil compaction, which is also one of the leading causes of soil pollution.

In addition to the decline of soil quality, crop yield and quality, soil pollution is more serious because the soil has an enrichment effect on pollutants, and some toxic pollutants, such as mercury and cadmium, are enriched into crop fruits, and poisoning occurs after humans or livestock eat them. For example, due to the long-term use of industrial wastewater for irrigation, the content of heavy metal cadmium in the soil and rice in Zhangshi Irrigation District in Shenyang, Liaoning Province has exceeded the standard, and humans and animals cannot eat it. The soil can no longer be used as arable land, but can only be used for other purposes.

Soil pollution refers to the environmental problems caused by the discharge and release of harmful substances generated by industry, agriculture, mining and other activities in human activities, which exceed the purification capacity of the soil itself.

Soil is an important material base in the ecosystem and plays a key role in maintaining the survival and development of organisms. However, with the increasing number of human activities, a large number of toxic or harmful substances such as wastes, chemicals, and heavy metals will seep into the soil through air, water and other ways, and accumulate and spread in the soil, thereby destroying the structure and function of the soil, endangering ecological security and human health. The effects of soil pollution range from reduced crop quality and yield, groundwater contamination, degradation and loss of ecosystems, and threats to human health.

It should be noted that soil pollution is a complex environmental problem, and its treatment needs to be comprehensively considered and planned in terms of policy, law, technology and social participation. **Relevant regulations and standards should be improved, supervision and law enforcement should be strengthened, and environmental responsibility and self-discipline of enterprises and individuals should be promoted.

<> "Soil Pollution. Soil is a loose layer of minerals, organic matter, water, air, and microorganisms on the earth's land surface where plants can grow. When pollutants produced by human activities enter the soil and accumulate to a certain extent, it causes the deterioration of soil quality, and then causes some indicators in crops to exceed the national standard, which is called soil pollution.

Soil contamination can lead to reduced crop yields and agricultural product quality, polluting groundwater and surface water, affecting the quality of the atmospheric environment, and endangering human health.

Compared with air pollution and water pollution control, soil pollution is hidden and cumulative, not only invisible and invisible, but also will not be visible quickly, often after 10 or 20 years before it can be revealed. As a result, there is usually a long lag between the time soil contamination occurs and when it becomes a problem.

There are four main categories of soil pollutants:

The first is chemical pollutants, including inorganic pollutants and organic pollutants;

The second is the change of physical pollutants, which refers to solid wastes from factories and mines, such as tailings, waste rock, fly ash and industrial waste

The third is biological pollutants, which refer to urban garbage with various germs and waste water and waste discharged by sanitation facilities

Fourth, radioactive pollutants, mainly in the mining of nuclear materials and the nuclear areas of the atmosphere, mainly strontium and cesium and other radioactive elements with a long survival time in the soil.

Although the soil itself has a certain purification capacity, when the pollutants entering the soil exceed the environmental capacity of the soil, soil pollution will be formed, which will have a serious impact on the soil ecosystem, and will also enter the human body through the food chain, causing harm to human health. Contaminated soil can be remediated to restore the contaminated soil to normal function.

Soil remediation is the use of physical, chemical, and biological methods to transfer, absorb, degrade, and transform pollutants in the soil to reduce their concentration to acceptable levels, or to convert toxic and harmful pollutants into harmless substances. Fundamentally, the technical principle of contaminated soil remediation can be summarized as changing the form of pollutants in the soil or the way they bind to the soil, and reducing the migration and bioavailability of the nucleus in the environmentand reducing the concentration of harmful substances in the soil.

In order to protect and improve the ecological environment, prevent and control soil pollution, protect public health, promote the sustainable use of soil resources, promote the construction of ecological civilization, and promote sustainable economic and social development, the Fifth Session of the Standing Committee of the 13th National People's Congress passed the Law of the People's Republic of China on the Prevention and Control of Soil Pollution, which has been implemented since then.

The formulation of the Soil Pollution Prevention and Control Law is of great significance, first, to implement the decision-making and deployment of the first law on the prevention and control of soil pollution.

The second is to improve the socialist legal system with Chinese characteristics, especially the legal system for ecological environmental protection and pollution prevention and control.

The third is to provide legal guarantees for China to carry out soil prevention and control work and solidly promote the "Pure Land Defense Campaign".

Dealing with land pollution is a complex task that requires a comprehensive consideration of factors such as soil type, pollution degree, geographical conditions, and treatment technology. Here are some common land pollution control methods and strategies:

1. Detection and assessment: First, the detection and assessment of soil pollution is carried out to determine the source of pollution, the type and degree of pollutants, so as to guide subsequent treatment measures.

2. Control of pollution sources: take measures to reduce or cut off the discharge of pollution sources, such as strengthening the treatment of industrial wastewater and standardizing the use of pesticides and fertilizers.

3. Soil remediation: select appropriate soil remediation technologies according to specific conditions, such as physical treatment (such as excavation and removal of contaminated soil), chemical treatment (such as chemical reduction or oxidation of pollutants in soil) and biological treatment (such as phytoremediation and microbial remediation).

4. Soil remediation technology innovation: Continuously develop and adopt new soil remediation technologies, such as soil pyrolysis, electrodynamic remediation and nanomaterial application, to improve remediation efficiency and reduce costs.

5. Land management and planning: Rational planning and management of land use to ensure effective monitoring and control of polluted areas, and avoid the generation of new sources of pollution and pollution.

7. Public participation and education: Promote public participation in the decision-making process of land pollution control, improve public awareness and awareness of land pollution issues, and advocate environmentally friendly behaviors and lifestyles.

It should be noted that dealing with land pollution is a long-term process, which requires comprehensive consideration of various factors and adaptation to local conditions, so when implementing treatment measures, corresponding plans should be formulated according to the specific situation, and regular monitoring and evaluation should be carried out to ensure the sustainability and sustainability of the treatment effect.