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Layer by layer spread throughout the city, announcing the world as if it had finally finalized the fact that winter had arrived. Beauty is beautiful, but it also leaves the problem of snow on the road that needs to be solved urgently, and the prepared winter snow removal materials come in handy in an instant.
Unconsciously, it was found that the snow melting agent has become an indispensable material reserve every year, especially in the northern region of our country.
The snow melting agent does melt the snow, saving labor and keeping the road clear in a timely manner. However, the snow melting agent is mostly salt chemicals, which melt the snow on the road by reducing the melting temperature of ice and snow, but its residue brings many hidden dangers to the use of the road surface, the growth of crops and the health of animals, and also has many adverse effects on the urban ecological environment, especially the urban garden vegetation.
Snow melting agent is used a lot, and it is easy to form chlorine, sodium and other salt ions to accumulate on the surface of the soil. Once the melted snow water seeps into the soil, it will carry a large amount of soluble salt ions around the plant roots, resulting in the death of the shallow roots of garden plants.
The salt damage of the snow melting agent leads to the death of the capillary root system of plants, which is an important cause of the wilting and death of garden plants.
To a certain extent, the poor soil conditions affect the normal growth of garden plants, reduce the growth potential and resistance of garden plants, and correspondingly reduce the resistance of garden plants to snow melting agents. Under the harsh soil environmental conditions, the harmful effect of the deicing agent will be increased, even if it contains a very low content of deicing agent, it may cause the garden plants to wither and die, so that the green plants will die in a large area.
If you really need to sprinkle snow melt on the road, sweep off most of the snow first, and then apply a small amount of snow melt to prevent the road from freezing. Strictly monitor the use of chloride salt snow melting agents, and it is recommended to use more environmentally friendly snow melting agents. When using the snow melting agent, strictly control the amount of snow melting agent per unit area, increase the distance between the spraying vehicle and the road greening plants, and try to avoid sprinkling the snow melting agent directly into the green pond or tree pit.
Finally, we would like to remind everyone once again that excessive use of snow melting agents will cause a large area of green plants to die, and it is better to use less when the snow cover is not serious.
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Contains very low levels of snow melting agents, which may also cause garden plants to wilt and die. For the road surface that really needs to be sprinkled with snow melting agent, most of it should be swept away first. When using snow melting agent, the amount used per unit area is strictly controlled.
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If used excessively, it can cause widespread death.
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Yes, deicing agents are harmful to plants.
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If used excessively, it will definitely cause harm to the plant.
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There is this possibility, so clean up the range before using it.
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Yes, there are more chemical components in the snow melting agent.
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It is better not to overuse.
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This has an impact on the plant.
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If you overuse it, it should be.
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In the face of possible icing, the sanitation department began to sprinkle snow melting agent in an all-round way, reminding everyone not to get snow on the road to their faces, which will hurt their eyes. Parents should tell their children not to get snow in their eyes when playing in the snow. Relay on, let more people know that those who have babies must pay attention!
On January 4, Hefei ushered in a heavy snowfall. When snow and ice removal was carried out in the city, such a news also spread in the circle of friends.
In this regard, Cheng Tao, director of the Environmental Sanitation Department of the Hefei Urban Management Bureau, said, "We have never received a case of harm to the public because of the use of snow melting agents. Cheng Tao said that due to the snowfall on the main streets of the city, brought a lot of pressure, in order to restore the normal passage of urban roads as soon as possible, the city's urban management department has reserved tons of snow melting agent to deal with the snow. The snow and ice removal of the urban management department of Hefei is mainly based on manual snow removal and mechanical snow removal, and the snow melting agent snow removal is only used as an auxiliary means.
Regarding the news that the "snow melting agent is harmful" transformed by the circle of friends, Cheng Tao said, "I have never heard of this rumor. He said that the snow melting agent used by the Hefei urban management department is mainly ****** by the salt industry in Hefei City, Anhui Province, and the main ingredient is salt. A staff member of the salt industry in Hefei City, Anhui Province said that the ingredient of the snow melting agent is sodium chloride.
Sodium chloride is the main component of salt and has no practical harm to the human body. "We have not heard of any cases of harm to citizens due to the use of snow melting agents. At the same time, the staff member said that since sodium chloride is equivalent to salt, if it is exposed to it for a long time, it will have a certain impact on **.
Just like the brine of pickled pickles, if your hands are in contact for too long, it will also make you feel a certain amount of discomfort. ”
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1. Endangering farmland and green belts.
The snow after the use of snow melting agent is often accumulated in the green belt or farmland on both sides of the road, and all the salt residues are accumulated in the farmland and green belt after the beginning of spring, and crops and trees are afraid of salt, which will cause a large number of green plants to die, or even devastating.
Even if it is replanted, it must be completely replaced, and the farmland will be even more difficult to escape, and the loss is self-evident.
2. Shorten the life of the road.
Salt substances and asphalt will produce a chemical reaction, which will greatly reduce the holding and wrapping ability of asphalt materials and sand and gravel, causing the asphalt surface to fall off, and then a large area of road surface damage under the action of driving load. After the salt encounters water, the phenomenon of salt rise will occur, and it will cause the damage of the road subgrade, which will greatly increase the difficulty of road maintenance in the later stage.
Salt also has a hazard to cement concrete pavement, and the cement concrete pavement of urban roads will not use expensive salt-resistant cement on the side.
3. Polluting the environment.
When salts enter the ground, they will inevitably pollute local groundwater resources.
The principle of snow melting of "chloride salts" snow melting agent is:
After the chloride salt "snow melting agent is dissolved in water (snow), its freezing point is at zero degrees, such as sodium chloride (the main component of table salt) dissolved in water after the freezing point is -10, calcium chloride is about -20, and acetic acid can reach about -30. The freezing point of salt water is lower than that of water, so it is difficult to form ice after the salt is dissolved in snow water.
Water is a special substance, that is, the density becomes less after freezing (the density of the general substance in the solid state is greater than the density in the liquid state), therefore, the greater the pressure, the lower the melting point of the ice. It is often seen that where the wheels run over the snow, the snow tends to melt easily. When a snow-covered road surface is sprinkled with a snow melting agent, it is easier for the snow to melt when it is crushed by vehicles.
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First of all, the excessive use of snow melting agent in a large area makes the soil salt content in the isolation zone, traffic distribution zone, tree pond and other places in the center of the road greatly exceed the standard, resulting in a large number of deaths of street trees, hedges and other vegetation, which seriously affects the landscape effect and ecological environment.
Secondly, the snow melting agent not only causes damage to traffic facilities, but also causes the concrete protective layer to crack and fall off, corroding and damaging highway bridges. In an experiment in the United States, an overpass was originally 50 years in life, and if sodium chloride snow melting agent was used to remove snow, the life of the overpass could be reduced to 25 years, or even 10 years.
Thirdly, the damage of the snow melting agent to the vehicle is also very large, the rubber wheels deteriorate quickly due to the erosion of the snow melting agent, and the steel chassis may be burned out by the snow slush.
Fourth, the snow melt can also pollute the soil, causing some minerals in the soil to be filtered out, changing the chemical composition of the river water, and even threatening groundwater, increasing the acidity of the water, which can last up to 10 to 15 years. In addition, some amphibians are reluctant to cross the road where salt is sprinkled, thus preventing them from traveling to their habitual breeding areas, resulting in an imbalance in the food chain. Hope to adopt.
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The harm of the snow melting agent to the environment is mainly that it changes the pH of the soil, so it is very harmful to plants, and the inflow into the water also has a harm to the organisms in the water.
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There is so much harm, why do you still use snow melting agents, now people themselves are destroying themselves, and they are not sobering up, it is so sad, I am really speechless.
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1. The commonly used snow melting agent is sodium chloride, magnesium chloride, calcium chloride, potassium chloride and other chloride salt substances, the salt itself enters the soil, which will increase the osmotic pressure of the soil, prevent the absorption of water by plant roots, cause water stress, and cause physiological drought caused by Tuanhu, so that the plant will wilt, fall off and die;
2. Too many chloride ions will affect the photosynthesis of plants, and too many other ions will also affect plant metabolism, make plants grow slowly, and cause plants to be short;
3. Under the influence of the snow melting agent, the soil pH is destroyed, which changes the external environment required for the germination of plant seeds, resulting in the failure of seeds to germinate normally.
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The harm of snow melting agent to the environment is relatively large, mainly including: 1endangering farmland, green belts; 2.shorten road life; 3.Polluting the environment.
The main cause of harm: the snow melting agent is chloride salt, and the ingredients are sodium chloride, magnesium chloride, calcium chloride and so on. 1.
After these snow melting agents are added, they are placed in green belts and farmland, and after melting, they enter the soil, which increases the soil concentration, high salinity, and makes it difficult for plants to survive and even die; 2. Salt water enters the road, corrodes the road, and shortens the life of the road. 3. Because there is no strict standard for industrial salt, the content of some harmful substances exceeds the standard, which enters the food chain and harms the environment and human health.
Solution:1Eliminate the use of deicing agents; 2.Use a clean snow melter and rinse quickly after use to avoid corrosion of the road. 3.The use of farmland is prohibited.
The snow melting agent is very harmful to the environment, the consequences of long-term use are unimaginable, and the pollution is difficult to remove. For the sake of sustainable human development, the use of cleaning snow melting agents or small amounts should be prohibited.
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The snow melting agent is generally industrial salt, and the ingredients have a certain toxicity, which is easy to cause land salinization, so it is more obvious.
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It will corrode the car paint, and the car should be washed in time, and the green plants on both sides of the road are not good, how much damage will be caused to the environment
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There are still. In the past, sanitation workers shoveled snow with snow melting agent into the edge of the trees, but they were not allowed to do so.
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Yes. Generally, the snow melting agent is coarse salt, and excessive use has become saline-alkali land.
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Deicing agents contain salt and are harmful to roadside plants in road traffic.
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The deicing agent is salt, too much, of course, it will affect the local water quality.
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Deicing agents can cause environmental pollution.
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It has a great impact on the environment and climate.
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It's certainly not very good for life between us, but it's all good.
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The melted snow water is salt water that seeps into the soil and cannot be absorbed by the plants, causing the plants to dehydrate and die. The snow after the use of snow melting agent often accumulates in the green belt or farmland on both sides of the road, and its salt residue accumulates in the farmland and green belt after the beginning of spring, causing the soil to salinize. Destroying the structure and properties of the soil, polluting the soil, compacting the soil, and changing the chemical composition of the soil.
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Nonsense spoken by the landlord. Because they want to use this thing, they use it! No one stopped him. It's that simple.
Well, the landlord can sit down and compare.
After the snow. The road surface is slippery and prone to traffic accidents.
And snow clearing is troublesome and slow.
So in order to speed up the snow clearing.
Reduce the incidence of accidents as quickly as possible.
And reduce the ** of personnel.
Only use snow clearers that are polluting to the environment.
Even if the road is damaged, the safety of people must be the priority.
Anytime, life comes first.
First, the use of snow clearing agents, the number of personnel is reduced, and the road is polluted in small amounts.
Second, there is no need for snow removal, personnel are frequent, and the road is not polluted by any landlords, if you compare them, you will find.
The first is to stand on the user's side.
The second is to stand on the side of the bystander.
People pollute the environment for something.
But do you want to? If in order to protect the environment.
Everyone is dead, so what bad environment do you protect?
This is my positive reply to the landlord.
Don't meddle with it.
If you're good.
You can develop a non-polluting snow clearing agent.
I typed it myself!
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The reason is simple.
1.Efficiency issues.
In the event of heavy snowfall, it is easy to cause accidents and blockages, so it is necessary to use a lot of time, manpower, and material resources to clean up.
But this kind of cleaning work is only suitable for some areas, such as the main roads of the city, if it is a high-speed and less running road is not very applicable, a high-speed thousands of kilometers, if but by people and machines to clean, it is unlikely to be completed, even if it is completed, it will invest a lot of time and huge money, the gains outweigh the losses.
Therefore, in order to ensure the rapid passage of vehicles, goods and personnel to the destination quickly, the use of snow melting agent is a very efficient practice, and after spraying, it also has a certain dissolving effect on snowfall again, which can be said to be a very time-saving and cost-saving thing, and the efficiency is very high.
2.Technical issues.
There is currently no substitute for the highly effective snow melting agent (** also included), perhaps the formulation of the snow melting agent will be changed in the future or a new generation of products will be introduced.
Just like cancer, in today's society, it can only be slightly fought by radiotherapy and chemotherapy, and we all know that it is very obvious, but many patients will still choose, if there is a drug that can be used in the future, they will naturally give up the original radiotherapy and chemotherapy.
ps: You can't be overly pessimistic about the society, the crows in the world are generally the same everywhere, and it's the same when you're in power on the 1st floor, you can only do this if the technology is not developed, otherwise you have to get out of class.
It's definitely related.
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