How to reduce biological, chemical, and physical pollution?

Affected by many aspects, chemical pollution, physical pollution, depends on the level of scientific development, biological pollution, put things in the right place, it is not a pollutant, this thing depends on which aspect the country attaches importance to yourself, I feel that it is enough, it has nothing to do with college students or not, college students and so on, people should not litter, ......

Chemical pollution will seriously damage the ecological environment, which is extremely difficult to recover Physical pollution generally refers to the destruction of land or ecological environment through physical means, and cannot be restored by the environment Biological pollution generally refers to biological invasion, which seriously damages the ecological balance Follow-up: Eh. It's about 100 words per item Can you be a little more detailed Answer:

Chemical pollution generally refers to the pollution caused by chemical agents and other chemical products generally seriously damage the pH value of the soil, so that the vast majority of animals and plants can not survive, and if it exceeds a certain range of chemical pollution, it will cause permanent damage to the environment, physical pollution generally does not change the nature of the soil, but can still seriously damage the environment, China's Loess Plateau is an example of physical pollution, physical pollution also includes nuclear radiation and ultraviolet radiation, which can make the metabolism of animals and plants abnormal, Biological pollution generally refers to biological invasion, and the water hyacinth in Dianchi Lake is an example of biological pollution, which generally does not destroy the local abiotic environment, but it will compete with other local organisms and seriously threaten the survival of other organisms. That's all I can write.

Remember to adopt it.

1. Chemical pollution of leakage dust. Mainly from decoration, furniture, toys, gas water heaters, insecticide sprays, cosmetics, smoking, kitchen fumes, etc. The pollutants mainly include volatile organic compounds such as toluene, xylene, ethyl acetate, toluene diisocyanate, formaldehyde, and inorganic compounds such as ammonia, carbon monoxide, and carbon dioxide.

2. Physical pollution. It mainly comes from noise, electromagnetic radiation, light pollution, etc. generated by outdoor and indoor electrical equipment.

3. Biological contamination. It mainly comes from mites and other bacteria that inhabit carpets, plush toys, and bedding.

1. Chemical pollution. Mainly from decoration, furniture, toys, gas water heaters, insecticide sprays, cosmetics, smoking, kitchen fumes, etc. Pollutants mainly include volatile organic compounds such as toluene, xylene, ethyl acetate, toluene diisocyanate, formaldehyde, and inorganic compounds such as ammonia, carbon monoxide, and carbon dioxide.

2. Physical pollution. It mainly comes from noise, electromagnetic radiation, light pollution, etc. generated by outdoor and indoor electrical equipment.

3. Biological contamination. It mainly comes from mites and other bacteria that inhabit carpets, plush toys, and bedding.

Chemical pollution is the pollution of the environment caused by chemical substances (chemicals) entering the environment.

That is, environmental pollution caused by chemical pollutants. These chemicals are organic and inorganic, and they are mostly products made by human activities or artificial creation, and there are also secondary pollutants.

Potential foodborne hazards due to chronic long-term ingestion of chemical organic pollutants (MOPs), including pesticide residues, veterinary drug residues, mycotoxins, certain carcinogenic and mutagens formed during food processing (e.g., nitrosamines, etc.), and industrial contaminants, such as well-known dioxins, have become a major concern.

In the early stage of collection and processing of food raw materials, many bacteria are often attached to the surface of the beard, especially fruits, vegetables, meat and aquatic products with damaged surfaces.

Contamination of cooking utensils and utensils Poor storage conditions can allow bacteria remaining in food to grow and multiply and contaminate food through air, rats or insects. Putting too much faith in the refrigerator and keeping food in the refrigerator for too long can also increase the number of bacteria in the food.

Contamination of cooking utensils and utensils.

During the period from the purchase of the food to the time of eating, food contamination can be caused by cooking utensils that are not cooked or cooked, unclean, or eaten without washing hands.

Biological control is better.

Biological control technology can avoid chemical contamination and at the same time can avoid ecological damage. Because biological control technology will not be pests to develop resistance, but the effect is not fast, it is long-term.

The chemical prevention effect is fast, but with the frequency of use, it will make the pests resistant, and the effect is not obvious in the later stage, and the environmental pollution is greater.

Therefore, it is necessary to minimize the use of chemical drugs and promote biological control technology.

Pollution control should start from two aspects: source and treatment (reuse is the higher stage of treatment) In terms of controlling the generation of pollution, there are different physical, chemical, or biological methods to reduce waste generation according to how waste is generated, but there is no strict distinction. For example, air pollution is mainly:

Industrial exhaust gases can improve the process and vehicle exhaust gases, while the latter can find new energy sources. Water pollution, such as domestic sewage, can be reused, recycled, etc., to reduce the amount generated.

In terms of treatment: the treatment of air pollution, such as physical adsorption, dissolution, chemical reaction adsorption and dissolution (such as lime milk, flue gas desulfurization), and biological aspects of air pollution treatment, I can't say.

water pollution, physical filtration, visible garbage; But it is mainly a chemical method to destroy harmful substances into harmless substances, or be precipitated**, etc.; Organisms are still very helpful to water pollution within a certain limit, and some eutrophicatic waters can be treated in this way, but too slowly!

Reducing pollution is to react substances that are harmful to the atmosphere and ecology into harmless through chemical reactions. The reactants can be used as industrial raw materials or something. The biological aspect is similar to waste utilization.

For example, the straw left after the harvest of straw crops should not be burned by fire, but can be processed and sold to animal farms as feed.

The physical method should be to reduce the production of garbage, the biological method is to use the organisms of nature to decompose the garbage, and the chemical method is to use some drugs to control the source of pollution.