? Previous research by new york University found that the microplastics content in infants was 20 times higher than that in adults by analyzing the feces of 6 infants and 10. After Science magazine published a paper on plastic fragments in marine waters and sediments, people began to pay attention to the concept of microplastics.
In fact, previous studies have also found worrying results. Babies fed with plastic bottles (especially formula heated by plastic bottles) may consume more than 6,543,800+plastic granules every day, and high temperature has the greatest influence on the release of plastic granules, rising from 600,000/liter at 25℃ to 55 million/liter at 95℃.
Some scientists have found that as many as nine different kinds of microplastics have appeared in the human body. The size of these microplastics varies from 0.05mm to 0.5mm. Perhaps many people have no idea about this size, and it is several times smaller than our hair. According to this study, there are nearly 20 microplastics particles in every 10g feces, and microplastics exists in half of the global population.
What are the main microplastics around us?
Bottled plastic water cup
A paper published in the journal Nature and Food in June, 2020 mentioned that infant formula made of polypropylene plastic bottles may consume more than160,000 microplastics granules per liter. Moreover, even after 2 1 day, microplastics will still be released; The higher the water temperature, the more relative release.
tea ball
A study published in the Journal of Environmental Science and Technology by McGill University in Canada shows that when you make tea with tea bags, you will drink tens of billions of plastic particles. The researchers bought four different brands of teabags and divided them into two groups. First of all, the tea leaves in group A tea bags were dumped and washed thoroughly to reduce the influence of tea leaves on the research results. The tea bags in group B have not been changed. Then, the researchers put the empty tea bags in Group A into a glass bottle, poured hot water at 95℃ and let it stand for 5 minutes.
The results showed that tea bags would crack and degrade obviously after soaking. At the same time,11600 million microplastics and 3 10/000 million nano-plastic particles were detected in the water. In other words, if you drink a cup of teabag, you have to swallow at least 654.38+0.4 billion plastic particles.
bottled water
An article entitled "Human Consumption of microplastics" published in Environmental Science and Technology in 20 19 estimated that the annual intake of microplastics by human beings was as high as 39,000-52,000, and if the incoming calls were taken into account, the number would be 74,000-12100. People who like to drink bottled water may consume 2 1. 1 10,000 microplastics every year. Let's do the math. On average, we drink about 578 tablets a day.
Fruits and vegetables, meat products
A study published in the journal Nature and Sustainable Development shows that cracks in the roots of lettuce and wheat crops can absorb microplastics in soil and water, and then spread to edible parts. In this process, the transpiration of plants has played a promoting role. Of course, the fish in the ocean can't escape. There is evidence that microplastics can be transferred from the digestive tract of European anchovies and other species to the liver. In the end, they were served on the human table.
Cleaning, washing and other toiletries in life.
It is often said that adding "soft beads" can exfoliate skin and deeply clean pores. This kind of "pig" is typical of microplastics. In addition, the superfine fiber fragments produced by washing machines are also an important source of microplastics. Through the experiment of domestic washing machine wastewater, the researchers found that a piece of clothing can produce 1900 plastic fibers every time it is washed.
In the breathing air
Even the air I breathe every day is full of microplastics. Studies in Paris and Dongguan, China show that microplastics (mainly fiber) exists in the total amount of atmospheric dust. In the crowded urban area of Paris, researchers found that the indoor concentration range of microplastics fiber was 1-60 fiber /m3, while the outdoor concentration range was 0.3- 1.5 fiber /m3.
The earth is the home of human existence. Please do this to reduce the harm of microplastics.
Use less plastic bags and more environmental protection bags. When you go out to buy food, bring a woven bag or cloth bag, which is hygienic and saves money.
Drink less milk tea and order less takeout. Milk tea packaging cups, takeaway boxes ... these takeaway packages are all plastic!
Use less straws? Lift a finger. Less use of small straws can also help reduce plastic waste.
Don't throw plastic products about? I hope garbage sorting can be implemented.
Don't throw plastic bottles and plastic bags, put them in the designated trash can and hand them over to the special sanitation department for unified treatment, which can reduce the pollution to the environment and reduce the chance of hurting yourself.
It is best to choose degradable plastics.
Don't let "plastic limit" and "plastic ban" become slogans. If you must use it, choose degradable one, which can reduce the pollution of ordinary plastics to the environment.
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Extended data:
A study published in the academic journal Nature Food "Natural Food" explicitly mentions the fact that microplastics will be ingested by babies through bottles-
If a baby drinks milk from a bottle made of PP (polypropylene), he may drink more than one million microplastics granules every day. This data will inevitably worry parents.
How to choose a baby bottle is relatively safe?
1, avoid choosing polyvinyl chloride (pvc) products: the plastic label of pvc is 3. Generally, pvc contains phthalates (PAEs), which is a plasticizer. If the plastic of the product is soft, elastic and irritating, it usually indicates the existence of phthalate esters.
2. Avoid using BPA (bisphenol A) plastic products: BPA is commonly found in hard and transparent plastic cups, including some products with plastic labels of 7-PC.
If you can't find the plastic logo on the product, and the plastic is hard (it won't deform when squeezed by hand) and transparent, you'd better not use it.
"But save this square inch of land and leave it to future generations to farm." I wish you * * encouragement.