Maya Ellison
Plastic is everywhere. It's in our food, our drinking water, and even our bodies. People have produced 9 billion tons of plastic to date, and only about 9% of that has been recycled. This plastic doesn't just go away—it breaks down into tiny pieces called microplastics, which are smaller than a grain of rice and can be found in our environment, from mountaintops to the seafloor. Recent research shows that every liter of bottled water contains hundreds of thousands of these microplastic particles, which can have harmful effects on our health. Scientists are now trying to understand the impact of microplastics on our bodies and the planet, and ways to reduce our exposure to them.
| Characteristics | Values |
|---|---|
| Amount of plastic produced to date | 9 billion tons |
| Percentage of plastic recycled | 9% |
| Number of plastic drink bottles sold every minute | 1 million |
| Number of plastic bags used per person per year in the U.S. | 365 |
| Number of plastic bags used per person per year in Denmark | 4 |
| Plastic particles found in | Human blood, lungs, gut, feces, and reproductive tissues |
| Plastic contamination in | Food, drinks, and the air we breathe |
| Plastic contamination in bottled water | Hundreds of thousands of plastic particles per liter |
| Plastic contamination in tap water | Millions of plastic particles |
| Plastic contamination in bottled water (types) | Polyamide, Polyethylene terephthalate (PET), Polyvinyl chloride, Polymethyl methacrylate, and Polystyrene |
| Plastic contamination in bottled water (sizes) | Microplastics and Nanoplastics |
| Microplastics size | Less than 5mm or smaller than a sesame seed |
| Nanoplastics size | Less than 1 μm |
| Microplastics sources | Plastic containers, wrappers, and litter in the environment |
| Nanoplastics sources | Not yet clear |
| Microplastics removal technique | Boiling and filtering |
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What You'll Learn
Plastic particles in bottled water
Plastic is a cheap and long-lasting material. Unfortunately, this means that plastic pollution is a big problem. Unlike wood, paper, and metal, plastic does not naturally break down. Instead, it crumbles into microplastics, which are plastic pieces smaller than a grain of rice. These microplastics can then break down into even smaller pieces called nanoplastics.
Microplastics and nanoplastics can enter our food and water supply in several ways. Firstly, they can come from plastic containers or wrappers. They can also come from plastic litter in the environment. In addition, plastic tubing used in manufacturing machinery can introduce microplastics and nanoplastics into food and beverages. These microscopic particles can also leach in from packaging such as plastic bottles.
Recent research has found that a typical liter of bottled water contains roughly 240,000 plastic fragments, with most of them being nanoplastics. These particles are so small that they can enter the body's cells and tissues. While the health effects of these particles are still unclear, there is cause for concern.
To reduce our exposure to microplastics and nanoplastics, we can transition away from single-use plastic and adopt reusable alternatives such as glass and steel water bottles.
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Plastic's effects on human health
Plastic is one of the most pervasive materials on the planet, and its impact on human health is significant. As plastic products break down, they release toxic chemicals and particles into the environment, which can have harmful effects on human health. These toxins are released into the air, water, and soil, and can be ingested by humans through the food chain.
One of the main concerns with plastic is the release of microplastics and nanoplastics into the environment. Microplastics are plastic pieces smaller than a grain of rice, while nanoplastics are even smaller, less than 1 μm in size. These tiny particles can be ingested by humans through contaminated food and water, and they have been detected in human blood, lungs, gut, feces, and reproductive tissues. The potential health effects of these particles are still being studied, but they are difficult to detect and may have harmful impacts on human health.
The production and refining of plastic also release toxic chemicals into the air and water. These chemicals have been linked to various health issues, including cancer, neurological problems, reproductive and developmental toxicity, and impairment of the immune system. Communities living near refining facilities are at a particularly high risk of exposure to these toxins.
In addition, plastic products themselves can contain harmful chemicals that can migrate into the food and drinks they contain. For example, Styrene from polystyrene, plasticizers from PVC, and antioxidants from poly can all contaminate food and drinks. These chemicals have been linked to direct toxicity, endocrine disruption, and carcinogenic effects.
Overall, the impact of plastic on human health is complex and far-reaching. Reducing the production, use, and disposal of plastic is crucial to mitigating the health risks associated with this pervasive material.
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Microplastics in the environment
Plastic is a cheap and long-lasting material that has become integral to our daily lives. However, it is also a major contributor to environmental pollution. Unlike wood, paper, and metal, plastic does not biodegrade naturally. Instead, it breaks down into microplastics, which are tiny plastic particles smaller than 5mm in length (or 0.2 inches), less than the size of a sesame seed. These microplastics are pervasive, found everywhere from mountaintops to the ocean floor, and in the air, water, and soil.
The presence of microplastics in the environment is a growing concern. They are persistent, highly mobile, and difficult to remove from nature. Once released into the environment, microplastics tend to accumulate. This accumulation is particularly evident in the oceans, where marine animals often consume them. While the primary source of this pollution is littering, microplastics can also enter the ocean due to storms, water runoff, and winds.
The impact of microplastics on the environment and human health is still being studied. However, there is sufficient evidence to suggest negative effects, especially on aquatic species that are valuable sources of nutrients for humans. As a result, the consumption of contaminated species can pose potential dangers to human health. Additionally, microplastics have been detected in various food products, including meats, vegetables, fruits, packaged foods, and beverages. Research has also found evidence of plastic particles in human blood, lungs, gut, feces, and reproductive tissues.
To address the issue of microplastics in the environment, many countries are taking action. The European Union (EU), for example, has committed to restricting the use of intentionally added microplastics in products and addressing unintentional releases. The United Nations also passed a resolution in 2017, highlighting the need for regulations to reduce the hazard of microplastics to oceans, wildlife, and human health. While the full extent of the dangers posed by microplastics may not be known yet, it is clear that reducing their presence in the environment is crucial for the safety of our planet and its inhabitants.
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Reducing plastic exposure
Plastic pollution is a pressing issue, with plastic particles infiltrating every corner of the planet, from mountaintops to the ocean floor. These particles have also been detected in our food and drinks, including bottled water. While the health effects of ingesting microplastics are still being studied, it is recommended to reduce plastic exposure as much as possible. Here are some ways to achieve that:
- Avoid single-use plastics: Single-use plastics, such as plastic bottles, are a significant source of microplastics. Reusing single-use plastic items for food storage or reheating should also be avoided. Opt for reusable alternatives made from materials like glass, metal, or ceramic.
- Choose tap water: Tap water generally has lower levels of microplastics compared to bottled water. If possible, use a water filter to further reduce potential plastic contamination.
- Beware of heating plastics: Heating plastics, such as microwaving food in plastic containers or drinking hot beverages from plastic-lined cups, can release micro- and nanoparticles. It is best to avoid using plastic for cooking, storing, or drinking hot liquids.
- Maintain a clean living space: Regular vacuuming can help reduce plastic exposure by removing plastic fibres and dust that accumulate from carpets, curtains, and furniture.
- Support plastic-reducing initiatives: Advocate for initiatives that address plastic pollution, such as those that utilize fungi, bacteria, or beetle larvae to break down plastic. Additionally, support efforts to reduce the use of single-use plastics and promote recycling.
While it is challenging to completely eliminate microplastics from our lives, taking these steps can help reduce our exposure and potential health risks. It is also essential to stay informed about the latest scientific findings and public health measures related to plastic pollution.
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Plastic's impact on the ocean ecosystem
Plastic is now an integral part of the ocean, and the full implications of this toxic ecosystem are yet to be understood. The ocean and the array of species that call it home are succumbing to the poison of plastic.
Plastic is cheap to produce and long-lasting. These qualities make plastic pollution a significant problem. Unlike wood, paper, and metal, plastic does not biodegrade. Instead, it crumbles into microplastics, which are smaller than a grain of rice and can be seen only under a microscope. Even recycling does not solve the microplastics problem as the process releases huge amounts of microplastics into the environment.
The world produces record amounts of plastic every year, and a large percentage of it ends up in the oceans. In the first decade of this century, more plastic was produced than in the entire history of plastic up to the year 2000. Billions of pounds of plastic are found in swirling convergences that make up about 40% of the world's ocean surfaces. Studies estimate that there are now 15–51 trillion pieces of plastic in the world's oceans, from the equator to the poles, the sea floor to the Arctic ice sheets.
The impact of plastic on the ocean ecosystem is far-reaching. Marine mammals, fish, seabirds, and sea turtles can become entangled in or ingest plastic debris, causing suffocation, intestinal injury, starvation, and drowning. Endangered wildlife like Hawaiian monk seals and Pacific loggerhead sea turtles are among the nearly 700 species that eat and get caught in plastic litter. Research indicates that half of the sea turtles worldwide have ingested plastic, and a recent study found that a quarter of fish at markets in California contained plastic in their guts.
The problem of plastic in the ocean is only expected to grow. By 2050, experts predict that the weight of ocean plastics will exceed the combined weight of all the fish in the seas.
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Frequently asked questions
Scientists have found evidence of plastic particles in human blood, lungs, gut, feces, and reproductive tissues like the placenta and testes. It has been linked to changes in the gut microbiome and the body's antibiotic resistance. Animal studies have also shown that microplastics can disrupt hormones, weaken the body's immune system, and increase cancer risk.
Plastic particles enter our bodies through food, drinks, and even the air we breathe. Plastic bits get into drinks and foods from plastic containers or wrappers. They also come from plastic litter in the environment. Animals can drink it, or plants can absorb it, and then we eat those animals or plants.
We can reduce our use of single-use plastics, such as plastic bottles, and choose tap water over bottled water whenever possible as it is less contaminated. We can also choose fresh foods or items packaged in glass or paper.
