Maya Ellison
Plastic is everywhere. It's in our homes, our clothes, our cars, our beds, our cosmetics, our cups, our food, our drinks, and even our blood. Yes, recent studies have confirmed the presence of microplastics, microscopic pieces of plastic, in the human bloodstream. This discovery raises concerns and prompts further exploration into the potential health risks associated with plastic pollution. While the specific mechanisms and consequences of microplastics in the blood are not yet fully understood, their presence underscores the urgent need to address our plastic-soaked lifestyle and its impact on our health and the environment.
| Characteristics | Values |
|---|---|
| Plastic particles found in human blood | Yes |
| Percentage of people with microplastics in their bloodstream | 77% to 80% |
| Plastic polymers found in human blood | Polyethylene terephthalate, polyethylene, polymers of styrene, poly(methyl methacrylate), and PET |
| Mean concentration of plastic particles in blood | 1.6 µg/ml |
| Possible health risks | Endocrine disruptors, damage to human cells, cancer |
| Ways of entering the bloodstream | Air, food, water, personal care products, dental polymers, tattoo ink residues |
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What You'll Learn
Microplastics are in human blood
Plastic waste has become a pressing global issue, with huge amounts dumped into the environment. Microplastics, resulting from the breakdown of larger plastic products, are now found everywhere, from the summit of Mount Everest to the deepest oceans.
It was already known that humans consume microplastics through food, water, and breathing. However, new research has found evidence of microplastics in the human bloodstream for the first time. Scientists tested the blood of 22 anonymous donors and found microplastics in 80% of them. The mean concentration of plastic particles in the blood was 1.6 micrograms per millilitre. This is the first measurement of the mass concentration of plastic in human blood and demonstrates that plastic particles can enter the bloodstream.
The discovery has raised concerns about the potential health risks of microplastics. While the impact on human health is still unknown, researchers are worried as microplastics have been shown to damage human cells in laboratory studies. Additionally, microplastics have been found to attach to the outer membranes of red blood cells, potentially impacting their ability to transport oxygen. They have also been detected in the placentas of pregnant women and have been found to pass rapidly through the lungs into the hearts, brains, and other organs of foetuses in animal studies.
Further research is urgently needed to understand the health consequences of microplastics in the bloodstream and to address the pervasive harm of plastics on the environment and human health.
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Plastic particles can attach to red blood cells
Plastic particles have been found in human blood samples, with research suggesting that they can attach to red blood cells. This is a cause for concern as it indicates that humans are not disconnected from the natural world and its harm. While the specific consequences of plastic in the bloodstream are not yet fully understood, it is known that plastic particles can attach to red blood cells and potentially impact their function.
The presence of plastic in the human bloodstream is a recent discovery, with studies in 2022 confirming this for the first time. Researchers analyzed the blood of 22 anonymous donors and found microplastics in 80% of the samples. This was the first evidence of plastic in the human bloodstream, although it was already known that humans ingest and inhale microscopic pieces of plastic through various sources such as food, water, and air.
The study identified four high-production volume polymers commonly used in plastic: polyethylene terephthalate, polyethylene, polymers of styrene, and poly(methyl methacrylate). These polymers were found in the blood of the participants, with a mean concentration of 1.6 µg/ml. This finding demonstrates that plastic particles can enter the human bloodstream and accumulate to a measurable extent.
While the exact mechanisms and health implications of plastic particles attaching to red blood cells are not yet fully understood, there are concerns about potential risks. For instance, in vitro studies have shown that microplastics can have effects on cells, and there are worries about possible inflammatory responses or impacts on organ function. Additionally, the presence of plastic in the bloodstream indicates that humans are not immune to the harm caused by plastic pollution, which has been a concern since the 1970s.
The discovery of plastic particles in the human bloodstream underscores the need for further research and action to address the pervasive issue of plastic pollution. While the specific consequences and mechanisms are yet to be determined, the presence of plastic in our blood serves as a stark reminder of the interconnectedness between human health and the health of our planet.
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Plastic is in our food, water, and air
Plastic is everywhere—in the ocean, in the air we breathe, in the food we eat, and even in our water and blood. While the understanding of the plastics crisis is evolving, it is clear that plastic pollution is a critical issue that impacts human health and the environment.
Microplastics and nanoplastics, tiny plastic particles that are often invisible to the naked eye, have been found in every environmental compartment, including freshwater, soil, and air. They are formed through the mechanical, chemical, and physical fragmentation of larger plastic pieces, and their small size allows them to pass through water filtration systems, ending up in our water sources. These microplastics can come from various sources, such as larger plastic debris that degrades into smaller pieces, resin pellets used in manufacturing, or microbeads found in health and beauty products.
The presence of microplastics and nanoplastics in our food supply is a growing concern. While the FDA continues to monitor research and advance scientific understanding, there are significant research gaps. Studies have shown that these plastic particles can enter our food primarily through environmental contamination where foods are grown or raised. Additionally, there is a lack of standardized definitions, reference materials, and sample collection procedures, making regulatory risk assessment challenging.
Not only are microplastics and nanoplastics found in our food and water, but they have also been detected in human blood. A pioneering study found plastic particles in the bloodstream of healthy volunteers, indicating that these particles can be absorbed by the human body. The study identified four high-production volume polymers commonly used in plastic: polyethylene terephthalate, polyethylene, polymers of styrene, and poly(methyl methacrylate). While the health implications of these findings are not yet fully understood, it underscores the need for further research and regulatory action to address the potential risks associated with plastic particle exposure.
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Plastic is harmful to human health
Plastic particles are ubiquitous pollutants in the living environment and food chain. Humans ingest microplastics by eating and breathing, and research suggests that microplastics are also present in the bloodstream. A 2019 study by the World Wildlife Federation found that humans eat or breathe in about 2,000 tiny plastic particles each week, mostly ingested from bottled water and tap water. A separate study found microplastics in the blood of 80% of 22 anonymous donors.
The main microplastics exposure route for humans is ingestion, followed by inhalation and dermal exposure. While there is no scientific certainty about the amount of plastic ingested, estimates range from 0.1 to 5 g/week, with inhalation amounting to between 26 and 170 airborne MNPs per day and up to 22,000,000 micro- and nanoplastics inhaled annually.
Plastic contains thousands of chemicals added for flexibility, stability, or fire resistance. These chemicals have been linked to various health issues, including reproductive harm, cancer risk, metabolic disease, and neurodevelopmental problems. Bisphenols and phthalates, two types of chemicals used in plastic, have been found in a wide variety of packaged foods. Exposure to these chemicals has been linked to disruptions of the endocrine or hormone system, which can lead to metabolic disorders and reproductive issues.
The presence of plastic in the human body, particularly in the blood, is a cause for concern and highlights the need to reduce plastic consumption and create a society less dependent on this harmful material.
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Plastic is everywhere, even in remote places
Plastic is everywhere. It is in the air, water, and food we eat. It is in the deepest oceans and the highest mountains. Even in remote places, plastic pollution has made its presence known, with microplastics settling into the most isolated corners of the globe. From the Mariana Trench to Mount Everest, plastic waste has been found in some of the most untouched and extreme environments on Earth.
The pervasiveness of plastic pollution is a growing concern, with plastic production continuing to increase. As a result, plastic is now found in previously pristine locations, including the Arctic and Antarctic regions. In 2018, scientists reported an alarming accumulation of microplastics in the Arctic, with up to 12,000 pieces per litre of sea ice. Similarly, Greenpeace found plastic waste and dangerous chemicals in water and snow samples in Antarctica. These remote regions, once considered untouched by human influence, are now contaminated with microplastics, carried by wind and rain.
The impact of plastic pollution extends beyond the environment and into our bodies. Recent research has detected microplastics in human blood for the first time, with evidence found in 80% of anonymous blood donors. This discovery underscores the ubiquity of plastic pollution and raises concerns about its potential health risks. While the long-term effects of microplastics in the human body are still uncertain, their presence in our blood highlights the urgent need to address plastic pollution and reduce our reliance on this pervasive material.
The extent of plastic pollution is evident in both remote and urban areas. In uninhabited places like the Grand Canyon and the Kavir and Lut deserts of Iran, microplastics have been detected in soil and sand samples. Even in the Southern Ocean, surrounding Antarctica, microplastics have been found in almost every water sample collected. These findings underscore the far-reaching impact of plastic pollution and its ability to spread through atmospheric transport, affecting even the most isolated regions.
As plastic production continues to rise, the issue of plastic pollution will only become more pressing. It is essential to recognize the impact of human activity on the environment and take decisive action to reduce our plastic footprint. By pressuring businesses and policymakers, we can drive system-wide changes and create a future that is less dependent on this harmful material. The discovery of plastic in our blood should serve as a wake-up call to protect our planet and our health from the pervasive harm of plastics.
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Frequently asked questions
Yes, recent studies have found microplastics in the bloodstreams of humans.
Microplastics can enter the human body through air, food, water, personal care products, dental polymers, and tattoo ink residues.
The impact of microplastics on human health is still unknown. However, studies suggest that they can travel around the body and may lodge in organs. They can also attach to the outer membranes of red blood cells and potentially limit their ability to transport oxygen.
Individuals can take steps such as avoiding plastic water bottles, using reusable bags, and reducing seafood, tea, and plastic product consumption to minimize microplastic exposure.
The health risks of microplastics in the human bloodstream are still being studied. However, microplastics have been found to cause damage to human cells in laboratory settings, and they may act as endocrine disruptors, impacting hormone regulation in the body.
