Plastic bags are mainly 5 aspects of the harm of plastic bags mainly in the following aspects:
1, destruction of immunity. Some plastic bags and paper boxes will add some brighteners, phosphor, in addition to their potential carcinogenicity, but also damage the body's immunity.
2, causing blood system diseases. Non-food plastic bags containing polyvinyl chloride, after high temperature heating, it is easy to produce dioxins and other harmful substances, causing liver and kidney and the central nervous system, blood system diseases.
3, carcinogenic. Food with plastic bags are mostly polyethylene, as long as the temperature below 110 degrees Celsius is not easy to break down, so the temperature does not exceed 100 degrees Celsius of water food, the general no problem. But the fritters and other fresh frying pan, the temperature is far more than the food bag tolerance temperature, may lead to the production of harmful substances. Light may be dizzy, disgusting, while there is carcinogen may be.
4, leading to gallbladder, kidney stones. Unqualified plastic bags contain more industrial calcium carbonate and paraffin. Calcium carbonate can cause constipation or gallbladder, kidney stones; paraffin will make people diarrhea.
5, the impact of intelligence. If the plastic bag in the heavy metal, will have an impact on the blood system and mental development.
The world's plastic annual output of 100 million tons, if the annual 15% of the plastic waste calculation, the world's annual plastic waste is 15 million tons, China's annual plastic waste in more than 100 million tons, waste plastics in the garbage The proportion accounted for 40%, so that a large number of waste plastics as rubbish buried in the ground, no doubt to the lack of cultivated land to bring greater pressure.
At present, many countries are taking incineration (thermal energy regeneration) or re-manufacturing (product regeneration) approach to deal with waste plastics. These two ways to make waste plastic recycling, to achieve the purpose of saving resources. But because of waste plastics in the incineration or re-processing will produce harmful gases, pollution of the environment, it can be said that the disposal of waste plastics is still a headache in environmental protection work a big problem.
The harm of plastic bags to the environment
Plastic bags do bring convenience to people's lives, but this time the convenience has brought long-term harm.
Plastic bags recycling value is low, in the use of the process in addition to scattered in the city streets, tourist areas, water bodies, roads and railways on both sides of the "visual pollution", it is also a potential hazard. Plastic structure is stable, difficult to be natural microbial degradation, in the natural environment for a long time without separation. This means that waste plastic waste, if not recycled, will become a permanent pollutant in the environment and continue to accumulate, will cause great harm to the environment
1, affecting agricultural development. Waste plastic products mixed in the soil continue to accumulate, will affect the crop to absorb nutrients and water, resulting in crop production.
2, the threat to animal survival. Abandoning waste plastic products on land or in water, being swallowed by animals as food, causing animals to die. Last year, Qinghai Lake has 20 herdsmen a total of nearly a thousand sheep so death, economic losses of about 30 million. Sheep like to eat plastic bags wrapped in oily residue, but often even eat together with plastic bags, and because of the plastic for a long time to stay in the stomach is difficult to digest, the sheep's stomach was packed, no longer eat Things, and finally can only be starved to death. Such things in the zoo, pastoral areas, rural areas, the ocean is not uncommon.
3, waste plastics with landfill will not only take up a lot of land, and the occupied land for a long time without recovery, affecting the sustainable use of land. Into the garbage of waste plastic products if it is landfill, 200 years of time without degradation.
Moreover, the plastic bags to oil as raw material, not only consume a lot of resources, can not be broken down, buried in the ground will pollute the land, rivers.
In addition, the plastic bag itself will release harmful gases. Especially cooked food, wrapped in plastic bags, often degenerate. The impact of the deterioration of food on the healthy development of children is particularly prominent.
It is huge energy consumption, it is estimated that China's production of 1 ton of plastic bags need to consume 3 tons of oil, and China's annual consumption of plastic bags at least 3 million ordinary cars for 5 years. Change this situation, out of the trend of ultra-thin plastic bags, the country and the people