1, the hygienic significance of soil is mainly reflected in the following aspects. First of all, soil is an important link between the inorganic world and the organic world. It provides an environment for biological growth, while maintaining the circulation and ecological balance of various chemical elements on the earth through adsorption, decomposition, transformation and enrichment.
2. Soil is the core of terrestrial ecosystem and an important link connecting biosphere, atmosphere and hydrosphere. The microorganisms, plants and animals in the soil form a complex ecosystem, which maintains the stability and health of the soil ecosystem through interaction and adjustment.
3. Soil also has the function of purifying the environment. Can adsorb and degrade pollutants and reduce the risk of environmental pollution. For example, microorganisms in soil can decompose organic pollutants and turn them into harmless substances, thus reducing the harm to the environment and human body.
4. The hygienic significance of soil is also reflected in the prevention and control of soil pollution. With the development of industrialization and urbanization, soil pollution is becoming more and more serious. Heavy metals, organic pollutants and radioactive substances in soil will pose potential threats to the environment and human health. Therefore, it is of great significance to take effective measures to prevent soil pollution and protect the environment and human health.
The contents of soil pollution prevention and control are as follows:
1. Establish perfect laws and regulations for the prevention and control of soil pollution: limit and control the discharge of pollutants by formulating strict laws, regulations and standards, and protect the soil environment and human health. Strengthen the control of soil pollution sources: strengthen the control and management of pollution sources such as industry, agriculture and life, and reduce the pollution of soil by pollutants such as waste gas, waste water and waste residue.
2. Popularize cleaner production technology and environment-friendly agricultural measures: adopt environment-friendly production technology and measures to reduce the use of pesticides, fertilizers and other chemicals to prevent soil pollution and ecological damage. Monitoring and evaluation of soil environmental quality: through monitoring and evaluation of soil environmental quality, the problem of soil pollution can be found and solved in time.
3. Increase the public's knowledge and awareness of soil pollution prevention and control: popularize the knowledge and skills of soil pollution prevention and control and improve the public's knowledge and awareness of soil environmental protection through publicity and education and popular science activities.
4. Establish a diversified investment mechanism for soil pollution prevention and control: encourage enterprises, social organizations and individuals to participate in soil pollution prevention and control, and establish a diversified investment mechanism with government guidance, market operation and social participation.