Are there any dangers in black plastic bags? Why?

Over the years, environmental problems have also been put in front of everyone, especially the harm of plastics, environmental pollution, and marine pollution, which are also shocking. People are constantly reminded that there is plastic residue in the stomach of animals, plastic residue in the human body, and plastic waste in the ocean.

There are countless signs of this kind, all of which remind human beings to pay attention to the control of plastic and reduce the use of plastic.

The excessive use of plastic bags has caused great harm to people's lives. For a long time, plastic bags have been used in people's daily life, such as on the dinner table. In the supermarket, plastic bags are also served before and after every purchase, and many people use a lot of plastic bags.

However, he also has a level distinction for plastic bags, some are edible and can come into contact with food, and some are inferior plastic bags, just like the black plastic bags that everyone usually uses or the plastic bags used to cover garbage.

Black plastic bags are of poor quality and will contaminate the body with pigments. The material of black plastic is not in contact with the human body, and when loading things, it should also be avoided from being used in daily life. In particular, black plastic bags, do not touch the vegetables and fruits you eat daily and the food you want to eat.

There will also be a lot of pigments in the black plastic bag, and these black pigments will also be harmful to the human body.

Therefore, from the color and material of the black plastic bag, it is not suitable for contact with the food used by the human body. Therefore, we should also try to reduce contact with black plastic bags, and in daily life, many plastic bags should also try to avoid contact, because for the body, there will be less harm or less.

Black plastic bags are of particularly poor quality, contain a lot of harmful substances, and are carcinogenic.

Black plastic bags will increase the amount of plastic, resulting in aggravated environmental pollution, which is not good for the body and mind.

Black plastic bags contain toxic substances, which are very harmful to the human body, so it is not recommended to use black plastic bags for food.

Black plastic bags are harmful to the human body and are generally used to hold garbage because they contain harmful substances.

The black plastic bags are made of harmful substances, of course, they are harmful to the body, and in serious cases, they will also cause some adverse diseases.

This is plastic, which pollutes water bodies and is difficult to eliminate after use, so it will be harmful to the earth for a long time.

Black plastic bags are generally used to hold garbage, which is made of waste plastic and cannot be used to hold food.

The black plastic bag absorbs more solar energy, enters the internal energy more, the local temperature rises rapidly, the water heat transfer is also more, the annual water temperature is also very high, the black plastic bag absorbs various colors of light, infrared, can better absorb solar energy, and for the internal energy.

The black balloon is not reflective and absorbs a lot of heat, while the colorless and transparent balloon has a certain reflection and does not absorb as much heat as the black one. The black one may be sunburned.

Absorption of solar energy in the research process, the modulus relationship between the surface colors, control the quality of water, the initial temperature, the same time, the absorption of solar energy through the study of temperature changes, the use of control variable method, water quality, initial temperature, the same time under the premise of the black plastic bag water temperature rises, so the surface area of the solar water heater. Black is preferred.

The food-grade plastic bags are white, and the black you say is the garbage bags.

Black is inexpensive, and because it is opaque and can protect privacy, it is black for the blue.

There are all kinds of colors, but black has the lowest cost.

The raw material of the plastic bag is polyethylene. Plastic bags do bring convenience to our lives, but the convenience of this time brings long-term harm. While plastic brings convenience to people's lives, it also brings uncontrollable troubles to the environment, and people call the disaster brought by plastic to the environment "white pollution".

There is also the black plastic bag you said, the material that is generally only available in black plastic bags is recycled material, recycled material: everything can be used in the industry, and the raw materials that can be used again through a certain processing process are called recycled materials. Most of these materials are toxic and have not undergone any food hygiene inspection and medical hygiene inspection.

There are no guarantees! The black ones are more poisonous than the white ones! Transparent is better than colored!

But it must be pungent and smell-free!

Most of the commonly used food plastic bags are made of polyethylene film, which is non-toxic, so it can be used to hold food. There is also a film made of polyvinyl chloride, and polyvinyl chloride itself is not toxic, but the additives added according to the use of the film are often harmful substances to the human body, which has a certain toxicity. Therefore, this kind of film and plastic bags made of this film are not suitable for holding food.

If you want to identify PVC plastic bags and polyethylene plastic bags, you can use the following simple method to identify.

Polyethylene film (non-toxic).

The film is milky white, translucent (several layers are stacked to observe it is especially obvious), it feels smooth, as if the surface is coated with a wax layer, shakes vigorously, the sound is brittle, flammable when exposed to fire, the flame is yellow, there is slime dripping when burning, and there is the smell of candles burning.

Polyvinyl chloride film (generally toxic).

If there is no pigmentation, it is transparent, the surface is a little sticky to the touch, shakes hard, the sound is low, it is not easy to burn when it encounters fire, it is extinguished when it is away from the flame, and the flame is green.

There is also a kind of degradable plastic bags, which are more environmentally friendly and belong to environmentally friendly materials! I won't go into them all! You can look up degradable plastics! Super Amazing Answer!

At present, most of the black garbage bags used on the market are made of toxic vinyl chloride, if vinyl chloride invades the human body through the respiratory tract, digestive tract and blood, it will cause people to have symptoms such as dizziness and headache.

According to the relevant information, the town type shows that the black garbage bag has a certain amount of harm to the human body. At present, most of the black garbage bags used on the market are made of toxic vinyl chloride, if vinyl chloride invades the human body through the respiratory tract, digestive tract and blood, it will cause people to appear dizzy, headache and other symptoms.

The hazards of plastic bags are:

1. Bringing serious environmental problems, waste plastics will not only occupy a large amount of land with landfill, but also the occupied land will not be restored for a long time, affecting the sustainable use of land. If waste plastic products that enter household waste are landfilled, it will take 2 years to degrade them. Moreover, plastic bags use petroleum as raw materials, which not only consumes a lot of resources, but also cannot be decomposed, and buried in the ground will pollute land and rivers.

2. Due to the large number of plastic bags used now, and there is nowhere to place a very large amount of plastic waste, some people will throw plastic waste into the sea, which is very huge for the pollution of the marine environment, and marine animals will be attracted by brightly colored plastic bags, and then suffocate to death by mistake. 3. At present, the most common way to dispose of waste plastic bags is incineration, and the harmful gases produced by the incineration of plastic bags are very harmful to organisms, which causes serious secondary pollution.

You can see plastic bags everywhere in life, but how many harms are caused by plastic bags, and how deep do you know? Let's explain them one by one.

The harm of plastic bags is that it brings serious environmental problems, plastic bags are mainly made of nitrocellulose, and it is very difficult for this substance to degrade naturally, even if it is buried in the ground, it will take hundreds of years to completely decay, which will seriously affect the permeability of the land and hinder the growth of vegetation.

The harm of plastic bags is two, due to the use of a large number of plastic bags, and there is nowhere to place a very large amount of plastic waste, some people will throw plastic waste into the sea, which is very huge for the pollution of the marine environment, marine animals will be attracted by brightly colored plastic bags, and then accidentally eat them and cause suffocation to death.

The harm of plastic bags is three, the most common way to dispose of waste plastic bags is incineration, and the harmful gases produced by burning plastic bags are very harmful to organisms, which has caused serious secondary pollution. The other is.

1. Affect agricultural development.

The accumulation of waste plastic products in the soil will affect the absorption of nutrients and water by crops, resulting in reduced crop yields.

2. It poses a threat to the survival of animals.

Waste plastic products discarded on land or in water bodies are swallowed by animals as food, resulting in the death of animals. Nearly 1,000 sheep from 20 herdsmen in Qinghai Lake died as a result, causing an economic loss of more than 300,000 yuan.

Sheep like to eat the oily residue wrapped in plastic bags, but often eat together with plastic bags, because the eaten plastic remains in the stomach for a long time and is difficult to digest, these sheep's stomachs are crowded, can no longer eat, and can only be starved to death.

3. It will occupy a lot of land.

Waste plastics will not only occupy a large amount of land with landfills, but also the occupied land will not be restored for a long time, affecting the sustainable use of land. If the waste plastic products that enter the domestic garbage are landfilled, they will not degrade for 200 years.