Studying at the First University of Austria and Canada, Wang Zhan knew the causes of environmental pollution. Pen, fun, pavilion www. biquge。 info

He has found a lot that this war is the same as the present world, and it is quite troublesome in this regard.

There are also pollutants every year, and if they are not well treated, there will be many problems. In this world, the scientific quality of people is not high, and it is even more difficult to solve environmental problems.

In many places, pollution levels have exceeded the ability of the environment to clean itself.

The concentration and toxicity of pollutants naturally decrease, a phenomenon called environmental self-purification. If the discharged substances exceed the self-purification capacity of the environment, the environmental quality will undergo adverse changes, endangering human health and survival, which will cause environmental pollution.

Environmental pollution can reduce biological production and exacerbate environmental damage.

The Huaxia Kingdom is vigorously governed, but the Japanese League has developed a military industry in a perverted way, engaged in some messy experiments, and made a lot of pollutants, such as zombies, which are full of poison after mutation. It's a big deal of environmental pollution.

When it comes to the sources of environmental pollution, there are mainly the following aspects:

(1) Waste smoke, waste gas, waste water, waste residue and noise discharged from the factory;

(2) Waste smoke, exhaust gas, noise, dirty water and garbage discharged from people's lives;

(3) Exhaust gases and noise emitted from vehicles (all fuel vehicles, ships, aircraft, etc.);

(4) Water flowing out of farmland after irrigation with a large amount of chemical fertilizers, pesticides, herbicides and other chemicals;

(5) Mine wastewater and waste residue;

(6) Machine noise, electromagnetic radiation, carbon dioxide pollution;

The restrictions of the Huaxia Kingdom are very good, and the Augar Empire is also learning, so a good style of pollution control has gradually formed in the world.

However, the Japanese League is different, and the above articles obviously have many shortcomings. As a result, the internal politics of the Japanese League were dark, and there were many examples of lying about the situation, and in some places the people were miserable.

Wang Zhan was thinking that instead of fighting, it was better to control environmental pollution. The development of the military industry by the Japanese alliance will only lead to a vicious circle. Environmental pollution, so the economy is backward, the economy is backward, so the perverted development of the military industry, which leads to environmental pollution.

It's so sad.

Environmental pollution is a worldwide problem.

Environmental pollution is the result of various polluting factors themselves and their interactions. At the same time, environmental pollution is also affected by social evaluation and has a social character. Its characteristics can be summarized as follows:

1) Pollution, environmental pollution is not affected by regional, racial, or economic conditions, and all are harmed.

2) Latent, many pollutants are not easy to detect in time, and once they erupt, the consequences are serious.

3) Long-term, many long-term and continuous effects of pollution, endangering people's health and life, are not easy to eliminate.

Folded temporal distribution

The amount of pollutants emitted and the intensity of polluting factors vary over time. For example, the types and concentrations of pollutants emitted by factories tend to change over time. Due to the tidal tide of the river, the alternation of high water and dry seasons, the pollutant concentration will change over time. As meteorological conditions change, the concentration of the same pollutant in the same place can vary by up to tens of times. The intensity of traffic noise varies with the flow of traffic over time.

Folded spatial distribution

After pollutants and polluting factors enter the environment, they are diluted and diffused with the flow of water and air. The stability and diffusion rate of different pollutants are related to the nature of the pollution, so the concentration and intensity distribution of pollutants in different spatial locations are different.

From the above, it can be seen that in order to correctly describe the environmental quality of an area, it is impossible to explain the monitoring results of a certain point alone. It is necessary to scientifically formulate a monitoring plan (including network, point setting, monitoring items, sampling frequency, etc.) according to the temporal and spatial distribution characteristics of pollutants, and then conduct statistical analysis of the monitoring data in order to obtain a more comprehensive and objective review.

Relationship with contaminant content

There is a boundary between the amount of toxic substances and their harmless natural background values (the same applies to the intensity of radioactivity and noise). Therefore, there is a threshold for the harm of pollution factors to the environment. The study of thresholds is an important basis for judging environmental pollution and pollution intensity, and it is also a scientific basis for formulating environmental standards.

Environmental pollution will cause direct damage and impact on the ecosystem, such as: desertification, deforestation, and will also cause indirect harm to human society, sometimes the harm of this indirect environmental effect is greater than the direct harm caused at that time, and it is more difficult to eliminate.

Environmental pollution problems have occurred to varying degrees in the world, and the aspects with global impact include atmospheric environmental pollution, marine pollution, and urban environmental problems. With the globalization of economy and trade, environmental pollution is also increasingly internationalized, and the transboundary movement of hazardous wastes is a prominent manifestation in this regard.

The hazards of air pollution

Harm to human health

A person needs to breathe air to stay alive. An adult breathes about 20,000 times a day and inhales 15~20 cubic meters of air. Therefore, polluted air has a direct impact on human health.

The harm of air pollutants to the human body is multifaceted, manifested as respiratory system damage, physiological dysfunction, digestive system disorders, nervous system abnormalities, mental decline, carcinogenesis, and disability. The smoke of this catastrophe is known as the "smoke of murder." When the concentration of pollutants in the atmosphere is very high, it can cause acute pollution poisoning, or worsen the symptoms, and even kill thousands of people in a few days. In fact, even if the concentration of pollutants in the atmosphere is not high, the human body breathes this polluted air for many months, which can cause chronic bronchitis, bronchial asthma, emphysema and lung cancer.

Environmental pollution and cancer

A large number of research data show that environmental pollution is an extremely important cause of cancer, relying on the strength of the whole society, taking comprehensive measures to effectively control environmental pollution, is an important part of comprehensive cancer prevention measures.

Harmful to plants

Air pollutants, especially sulfur dioxide and fluoride, are very harmful to plants. When the concentration of pollutants is very high, it will cause acute harm to plants, causing lesions on the surface of plant leaves, or directly causing leaves to wither and fall off; When the concentration of pollutants is not high, it will cause chronic harm to plants, making plant leaves green, or there are no harmful symptoms on the surface, but the physiological function of plants has been affected, resulting in a decline in plant yield and deterioration of quality.

Wang Zhan thought that if he had the opportunity, he would definitely make good use of his knowledge to benefit the people of this world, and hoped that this war would be like this world, and his life would be beautiful and stable.

(Main development----- the protagonist Wang Zhan travels to another world and begins to slowly understand the cruelty of this world. Wars arise because of interests, and they expand into dark phenomena such as aggression, killing, revenge, and hostility. And Wang Zhan, who has received a higher education in the new century, came to this world, joined the Huaxia Kingdom, and gradually resolved these sorrows through hard work. In the end, the enemy government was eliminated, the people realized the beauty of stability, and peace finally came. {Tendency - Victorious Country: Huaxia State; Result: Peace})