- Plastic is a problem for the environment, wildlife and human health. Laboratory data show how microplastics at levels relevant to human consumption led to cell death and allergic reactions
- Interestingly, the data also showed that irregularly shaped particles commonly found in the environment, and not the spherical microplastics normally used in lab experiments, caused damage
- Researchers have found microplastics in the air, oceans, tap water, food supply and bottled drinking water. They have also been found on the peak of Mount Everest and the deepest parts of the ocean
- Evaluations of baby meconium, a newborn's first stool, had plastic chemicals, likely transferred through the placenta after the mother's exposure. Concentrations in infant stool was 10 times higher than in adults
- Single-use plastic medical products rose significantly during the COVID pandemic, contributing to an excessive amount of pollution. More than 8 million tons of COVID-related plastic waste was generated globally, and more than 25,000 tons has entered the oceans
Dr. Myers on impact of plastic additives on health of future generation | Plastic Health Summit 2019
Plastic Soup Foundation on YouTube
Dec 10, 2019
16:57 viewing length
Plastic is a problem. Since being developed, plastic has become a part of nearly every facet of daily life. As a result, there is a staggering amount of plastic that enters the environment as people dispose of single-use products, like water bottles, personal care products or plastic grocery bags. Researchers have discovered these microparticles damage human cells.1
Clothing made with synthetic plastic fibers designed to stretch and "breathe" releases microfibers into the water supply2 and each time a plastic product is damaged, scraped or abraded it releases microparticles into the air.3 In the U.S., for example, car tires, brakes and road surfaces contain plastics. The friction of the tires on the road and brake use causes plastic to be released into the air.
These are just a few of the ways that plastic particles may be ingested or inhaled. While you likely do not experience the direct effect every day, plastics are quite literally choking our ecosystem. Once airborne, plastics may stay in the atmosphere for up to 6.5 days and under the right conditions may travel between continents.4
The amount of plastic that enters the environment grows each year as manufacturers continue to produce products in disposable containers and consumers continue to demand a disposable lifestyle. At a time when advocacy groups warn that plastics are falling from the sky5 and have become a global tragedy,6 the COVID-19 pandemic has driven the plastic problem to even greater heights.
Scientists have been collecting data on how plastics impact the environment, wildlife and human health. However, a November 2021 paper suggests why past data on human health have not been consistent.7 Past research has highlighted the impact that plastic pollution and microplastic has on the environment and on wildlife.8,9,10
Data on the implications on human health have suggested there is emerging evidence that microplastics are toxic, and increase oxidative stress and inflammation.11 However, many studies have not drawn an association between microplastic consumption or inhalation and disease, and instead identify research gaps and recommend further study.12
The 2021 lab data published in the Journal of Hazardous Material13 was the first to find microplastic damaged human cells at levels relevant to the number of particles humans ingest. The study found that microplastics trigger cell death and allergic reactions.
The study was a meta-regression analysis of the toxicological impact that microplastics have on human cells. The scientists analyzed 17 studies, comparing the level of microplastics that cause cell damage and are consumed through water, seafood and table salt. Evangelos Danopoulos from Hull York Medical School in the U.K. led the study. He commented on the results:14
"Harmful effects on cells are in many cases the initiating event for health effects. We should be concerned. Right now, there isn't really a way to protect ourselves. Once the plastic is in the environment, we can't really get it out. It [research on plastics] is exploding and for good reason. We are exposed to these particles every day: we're eating them, we're inhaling them. And we don't really know how they react with our bodies once they are in."
The researchers looked at five biological endpoints, including cytotoxicity, immune response, oxidative stress, barrier attributes and genotoxicity. In the 17 studies evaluated, only genotoxicity did not meet the endpoint measurement.
Additionally, the researchers found that it was irregularly shaped microplastics that cause cell damage and not the spherical microplastics that are normally used in laboratory experiments.15 This suggests that past laboratory research using spherical microplastics may not fully represent the damage microplastics can cause on human health.
Danopoulos said the team's next step is an animal study to evaluate health damage, as a human study would not be ethical. Microplastics researcher Steve Allen spoke with a reporter from The Guardian. He was encouraged by the results, commenting:16
"This work helps inform where research should be looking to find real-world effects. It was interesting that shape was so important to toxicity, as it confirms what many plastic pollution researchers believed would be happening — that pristine spheres used in lab experiments may not be showing the real-world effects."
Unfortunately, the ubiquitous nature of plastics in the environment has meant that globally most, if not all, people have been exposed to, and have ingested or inhaled, microplastic particles. A study published in late 2020 found microplastics in the snow and water samples on Mount Everest.17
An analysis of the lowest place on the planet — water samples from the Mariana Trench in the Western Pacific Ocean — revealed the highest levels of microplastics found in the open ocean.18 Every ocean beach that has been tested has contained tiny plastic fibers19 and researchers have identified microplastics in the sediment from the Amazon River in Brazil.20
In 2017, The Guardian21 published results of an investigation by Orb Media, which revealed 83% of the samples of tap water collected from more than one dozen nations contained plastic fibers. The U.S. had the highest rate of contamination in this study.
Bottled water has a similar rate of microplastic contamination. Researchers22 with the department of chemistry at the State University of New York Fredonia purchased 11 brands of bottled water from 19 locations in nine different countries. They found microplastic contamination in 93% of them.
The researchers wrote,23 "Plastics become microplastics become nanoplastics, but they are all plastics, just of increasingly smaller size, allowing them to be more easily ingested and perhaps even cross the gastrointestinal tract to be transported throughout a living organism," referring to the increasingly smaller size that plastics break down to in the environment.
Sherri Mason, Ph.D., professor of chemistry in the department of geology and environmental sciences at State University New York Fredonia, has spent years studying microplastics in the water supply. In an article in American Scientist, she explains the relationship between airborne microplastic fibers and water contamination.24
"In 2017 we examined 159 samples of tap water collected from 14 different countries. Eighty-eight percent of these samples showed evidence of microplastic contamination, with an average of 5.5 particles per liter. Almost all (98 percent) of these particles were microfibers, which suggests that air is the primary source of contamination."
One study reported in National Geographic found 90% of table salt contained microplastics25 and The Guardian26 reported that research by Mason found Americans could be ingesting 660 particles of plastic every year if they consume27 2,300 milligrams of salt each day.
Takeout food containers are another source of ingesting microplastics. One study28 published in 2020 found microplastics in different types of takeout containers, with the highest level found in those made of polystyrene. As you can see, when you consider that you likely use tap water when you cook, many of the foods and beverages you eat and drink could contain microplastics.
BPA is a plastic additive used to reinforce products.29 In an article in the San Franscico Chronicle,30 the Center for Environmental Health reported months of testing revealed even small clothing items for babies, children and adults could contain BPA at levels 31 times higher than the limit placed by California environmental law.
BPA is an endocrine disruptor that mimics human hormones and can be absorbed through the skin. Early life exposure can increase the risk of developing disease. When the CEH tested socks, they found BPA only in those that were made with polyester and spandex. They initiated litigation against Adidas, Champion, GAP, Hanes, New Balance and Reebok with the intent of forcing the apparel sector to remove the toxic substance from socks.31
Our addiction to plastic has meant that even newborns are exposed to microplastics. A market report32 in 2021 showed the baby bottle market would reach $3.5 billion by 2026 and plastic bottles would account for $1.7 billion, or 48.5% of the market share. One study33 published in 2020 analyzed the release of microplastics from plastic baby bottles to which infants may be exposed while consuming formula.
The team was led by John Boland, Ph.D., from Trinity College Dublin.34 The analysis showed the bottles leaked a wide range of particles, from an average of 4 million up to 16 million plastic particles per liter. Boland commented on the study:35
"We were surprised by the quantity. Based on research that has been done previously looking at the degradation of plastics in the environment, we had a suspicion that the quantities would be substantial, but I don't think anyone expected the very high levels that we found."
The researchers predicted36 that, globally, infants up to 12 months old may be exposed to 14,600 to 4.55 million microplastic particles a day, depending on region, which is higher than previously recognized due to the widespread usage of polypropylene baby bottles.
Not surprisingly, then, another study37 in late 2021 showed a disturbing amount of plastic in baby poop. The researchers found polyethylene-terephthalate (PET) in meconium samples, which is a baby's first stool.
The concentration in infant stool was 10 times higher than what was found in adult samples.38 The plastic particles found in meconium samples suggests microplastics are passing from mother to baby through the placenta.
Plastic use and pollution are the driving forces behind the growing challenge with microplastics in the environment and our food and water supply. During the pandemic, the problem grew at a far faster rate than it has in recent years. This is due in part to the waste from discarded masks, gloves and other personal protective items.
The single-use medical plastic items have intensified the "pressure on an already out of control problem," finds a recent study.39 The result of this analysis shows that more than 8 million tons of plastic waste associated with the pandemic were generated and more than 25,000 tons have entered the oceans. Roughly three-quarters of the waste was produced by hospitals,40 which poses a long-lasting problem.
The paper calls for better medical waste management to protect the oceans41 and ultimately our food supply. The study categorized the amount of waste for different areas of the world. They found that only 30% of all COVID cases were detected in Asia, yet the region was responsible for 72% of the plastic waste discharge.42
In addition to medical waste and personal protective equipment, the researchers also found larger quantities of packing material43 in the ocean and waterways, likely from the increase in online shopping during lockdowns. This made up 4.7% of the waste that entered the environment since the start of the pandemic.
Researchers predict that 70.5% of the waste deposited during the pandemic will end up on beaches by the end of the century. One crowdsourced project44 is tracking instances and observations of wildlife interacting with plastics and PPE litter, as well as noting cases where animals are trapped, tangled or ingesting the COVID-19 trash.
Apparently, there is not enough plastic pollution in the food supply, so the Defense Advanced Research Projects Agency (DARPA) awarded Iowa State University and partners a $2.7 million grant to create a process that would make food from plastic and paper waste.45
The intention is to use the product to feed the military men and women who have dedicated their lives to defending this country. They believe the ability to turn the paper and plastic waste products into a consumable could help with short-term "nourishment" and improve military logistics for extended missions. They estimate the total award could reach $7.8 million before the project ends.46
The system seeks to convert plastic waste into fatty alcohols and fatty acids and paper into sugar that would then be bioprocessed by single cell organisms into an edible mass rich in protein and vitamins. In other words, the hope is that microorganisms can convert the endocrine-disrupting chemicals found in plastic to vitamins and proteins.
DARPA also awarded Michigan Tech47 researchers $7.2 million to turn plastic waste into protein powder and lubricants. Battelle, a large research firm, announced in February 2021 that DARPA had awarded an undisclosed amount to create a process that "quickly convert[s] energy-dense waste into a useful substance to support expeditionary operations and stabilization missions."48
DARPA wants to turn plastics that leach hazardous chemicals, which researchers have found threaten human health,49 into food stuff for the U.S. military. However, in an era where fake meat is valued over regeneratively and biodynamically grown real meat,50,51 it doesn't take much to imagine that the next step could be plastic food for all.
- 1, 7, 13 Journal of Hazardous Material, 2021; 127861
- 2 Vox, January 11, 2019
- 3 CNN, April 13, 2021
- 4 PNAS, 2021;18(16)
- 5 Scientific American, June 11, 2020
- 6 Center for Biological Diversity, Ocean Plastics Pollution
- 8 Environmental Science and Pollution Research, 2018;25:36046
- 9 Environmental Pollution, 2019;244:522
- 10 Marine Pollution Bulletin, 2018;133:336
- 11 Science of the Total Environment, 2020;702:134455
- 12 Food, Health, and the Environment, 2018;5:375 Summary
- 14, 15, 16 The Guardian, December 8, 2021
- 17 One Earth, 2020;3(5)
- 18 Geochemical Perspectives, 2018; doi.org/10.7185/geochemiet.1829
- 19 The Narwhal, July 24, 2018
- 20 Science of the Total Environment, 2020; 749(141604)
- 21 The Guardian, September 5, 2017
- 22, 23 Frontiers in Chemistry, 2018;6:407
- 24 American Scientist, Plastics, Plastics Everywhere, A Global View
- 25 National Geographic, October 17, 2018
- 26 The Guardian, September 8, 2017
- 27 American Heart Association, How Much Sodium Should I Eat per Day?
- 28 Journal of Hazardous Material, 2020;399(122969)
- 29 Plastic Soup, Plastic Additives and BPA, top para
- 30 San Franscico Chronicle, December 7, 2021
- 31 San Franscico Chronicle, December 7, 2021, para 6
- 32 PR Newswire, July 1, 2021
- 33, 36 Nature Food, 2020;1:746
- 34 New Scientist, October 19, 2020
- 35 New Scientist, October 19, 2020, Para 5
- 37 Environmental Letters & Technology Letters, 2021; doi.org/10.1021/acs.estlett.10c00559 Meconium
- 38 New York Post, September 24, 2021
- 39, 41 PNAS, 2021;118(47)
- 40, 43 CBS News, November 9, 2021
- 42 The Washington Post, November 10th, 2021
- 44 Covid Litter
- 45, 46 News Wise, September 11, 2020
- 47 Michigan Tech, September 16, 2020
- 48 Inside Battelle, February 15, 2021
- 49 IPEN, December 15, 2020
- 50 Navdanya International April 2021
- 51 The Defender, April 20, 2021
In this Magnificent Mercola, we explore the waste in the fashion industry. According to statistical analysis, though some claim to recycle all of your used clothing, they probably only really recycle about 1% of it. Moreover, much of the "recycled" material is sold to vendors in Africa, where they resell it to their citizens. Most of it ends up in landfills. This cycle interferes with the manufacturing and sales of things made in their own countries.
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