In order to reduce the exposure of plasticizers, mothers have abandoned plastic straws and purchased stainless steel straws for their families. However, in recent years, Starbucks in the United States and Canada has suffered several accidental injuries to children and large-scale recovery of stainless steel straws. What are the hazards of plastic straws? What are the doubts about using stainless steel pipettes instead? Plastic pipettes cause serious harm to human beings. In order to expand the plastic restriction policy, the EPA will ban plastic pipettes completely in 2030. What harm will plastic pipettes and plastic cups do to the environment and human health? Doctor Jiang Shoushan, Kidney Department, specially discusses the crux of the problem from the following aspects: Plastics are difficult to decompose, and plastics that seriously injure marine organisms are not easy to decompose in nature, but under the influence of external forces, they will gradually break into fragments. Once they enter rivers, oceans, and then into the liver of organisms, they will cause damage to organs because they cannot digest. Colorful, heavy metals easily hurt the stomach. In addition, plastic pipettes have many colors. If they are yellow pigments, cadmium or fixatives are often used. Red pipettes contain lead. These heavy metals do great harm to children. It was found that drinking acid juice such as apple juice or orange juice through a straw and putting it in a straw to suck the juice into the mouth was enough to cause excessive heavy metals in the juice into the body, which brought great risks and hazards. Plasticizer causes feminization of boys and precocious puberty of girls. Plastic pipette with sufficient hardness is not hard enough. Plasticizer is just like domestic water pipe. There is no plasticizer in it. But pipette must have certain softness. Plasticizer is bound to be added. Plasticizer is the inhibitor of thyroid hormone. It is over-exposed to the body to inhibit the consequences of thyroid. On the one hand, due to insufficient function, it can be used as a plasticizer. Can make children appear dementia (short stature, lack of intelligence). On the other hand, plasticizers are known to have hormone-like effects in women. Pregnant women often use plastic straws to drink a lot of plasticizers. It is possible to have smaller testicles and feminization problems in boys when they give birth to male babies. It is easy to have premature puberty problems in the future when they give birth to female babies. Plastic straws can cause these injuries, so the government is expected to ban them, which is a good policy for the public. Is it feasible for stainless steel and glass pipettes to replace plastic pipettes? In order to reduce the use of plastic pipettes, there are various kinds of reusable pipettes on the market, including stainless steel and glass pipettes. Are these pipettes really environmentally friendly? Some people think that stainless steel and glass pipettes emit more carbon in the process than plastic pipettes. Is that true? Jiang Shoushan, a physician, said that the advantages of both methods include: 1. They are recyclable materials, less waste of resources. 2. Unlike plastic straw discarded into the ocean, organisms, and then eat into the human body will cause harm. 3. It can be reused and won't make garbage. Both ends are round and thick, so stainless steel pipettes can be used safely, so it should be developed in this direction, replacing plastic pipettes with stainless steel and glass pipettes. However, the accident happened recently when children used stainless steel pipette, which made people doubt its safety. In fact, as long as some modifications were made during the manufacture, it was not a big problem. For example, the two ends of stainless steel pipette were thicker and rounder, which could avoid the stabbing of children. Like the computer case, the cheaper and rough case is mostly not trimmed, and the user is easily scratched, which is caused by the simplicity of the poor, so the focus is on the workmanship. Others worry that stainless steel pipettes emit more carbon than plastic pipettes in the process. Dr. Jiang Shoushan pointed out that stainless steel pipettes are used repeatedly many times, which may not be a problem for decades. By contrast, they must cause less pollution than plastic pipettes that are lost once. As for the safety of glass straw, it is mainly afraid of breaking and hurting children, but the key point is in the process, just like strengthening the difference between glass and ordinary glass, strengthening glass breaking will not have sharp fragments, there is no risk of stabbing, as long as the manufacturing process is painstaking, good quality is safe to use.