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Disposable paper cups and disposable plastic cups, which is more environmentally friendly?

Plastic cups are good, we also buy plastic cups in the office, feel more stable plastic products, like many food bags are also plastic. Paper cups have to stick to a layer of things, pouring hot water always feel like it will melt into the water.

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Experiment proves that disposable paper cups are 30 times more toxic than plastic cups

August 02, 2011 10:27NGO Chemical Collaboration I want to comment (0)

Do you often use disposable paper cups when you're a guest outside your home? You might think it's more "hygienic". But a selection of common paper cups on the market, the experiment proved that the ordinary, the concentration of bisphenol A rose 36 times - some disposable paper cups than plastic cups "power" is also strong N times. "South Medical University School of Pharmacy community science lectures" yesterday to the Nanjing Mochou new apartment community, doctoral supervisor Professor Hu Qin to community residents to explain the harm of environmental hormones on people.

Experiment: paper cups are 30 times more "toxic" than plastic cups

Bisphenol A is a chemical widely used in the manufacture of plastics. Adding BPA can make plastic products colorless and transparent, lightweight and durable, and impact resistance and other characteristics. Therefore, most of the plastic bottles used by newborns contain BPA. drinking fountain buckets, plastic tableware, disposable paper cups and other daily necessities also contain BPA. "As an environmental hormone, BPA has an estrogen-like effect in animals, and is very harmful to newborn development and human reproduction." Prof. Hu Qin said. As a result, the European Union will stop circulating BPA plastic milk bottles from May this year and China from September this year. The test results were also published in two magazines, Hazardous Substances in the United States and Analytical Chemistry in the Netherlands.

However, many people do not realize that BPA is not only widely added to plastic household products, but can also be found in paper products. Prof. Hu Qin has selected some common daily necessities for group comparative determination. First of all, the disposable paper cups, disposable plastic cups, disposable lunch boxes bisphenol A content of comparative determination shows that the disposable paper cups of bisphenol A concentration is the highest, is a disposable plastic cups of nearly 30 times, the results also made Professor Hu Qin surprised. Subsequent experiments, she poured tap water containing 0.0855ng/ml BPA into a disposable paper cup, and waited for a few moments before the BPA content of the tap water in the cup rose to 3.12ng/ml, 36 times higher.

Huqin analyzed that this is because the processing of disposable paper cups most. Generally speaking, the more processing steps a product has, the higher the BPA content will be. There was also a group of tests on rainwater, barrels of pure water and tap water in Nanjing. The results show that rainwater has the highest concentration of BPA, is more than 7 times that of tap water, and barrels of pure water is not "pure", the concentration of BPA is 1.5 times that of tap water. This shows that the plastic containers contain bisphenol A will dissolve into the water, into the human body.

Reminder: plastic bottles should be changed in 8 months

In order to make the bottles cleaner, young parents often like to rinse the baby's bottles with boiling water, and even put them into the microwave oven to heat and sterilize them repeatedly. According to Prof. Hu, this practice makes plastic bottles release harmful BPA in large quantities.

Professor Hu said, "The increased concentration of BPA becomes more dangerous for newborn babies, which can cause lesions in the child's reproductive organs and precocious puberty." She believes that for male babies, excessive BPA will make them tend to be "feminine", such as playing with dolls and speaking in a thin voice, and may also suffer from ADHD. For baby bottles, Prof. Hu believes that glass bottles should be used. "If parents are worried about glass being fragile and hurting their toddlers, it is important to make sure that they change it frequently in the use of plastic bottles." According to Professor Hu, once the surface of the bottle is broken, the bisphenol A contained in it will precipitate, so the bottle should be replaced once every eight months, and the temperature should not exceed 100 degrees Celsius when sterilized.

Suggestions: switch to glass or porcelain utensils, eat more grains and fruits and vegetables

Huqin said, BPA and other environmental hormones, also known as endocrine disruptors or persistent organic pollutants, mainly from pesticides, insecticides, automobile exhaust, plastic production. Their "life" long, can be accumulated in the body for a long time, not easy to discharge or even not discharged, some even 600 years are not decomposed. From the air, soil, water, to breathing, food, drinking water, they are everywhere.

Huqin said, change the habit of using disposable paper cups, instead of glass or porcelain cups; put away the plastic plastic preservation box, plastic bags, instead of glass or porcelain bowls in the microwave oven to heat up the food; less use of shower gel bath, with more than a couple of rinse, reduce the residue on the skin.

Environmental hormones can keep piling up through the food chain, and four-legged animals such as pigs have more hormones than two-legged bodies such as chickens. Therefore, it is important to eat as little food as possible that is at the higher end of the food chain; "four legs are better than two, and two legs are better than no legs at all."

In addition, eat as many grains and fruits and vegetables as possible, which reduces the damage caused by the accumulation of environmental hormones through the food chain and helps to get them out of the body.