Tag: plastic

Microplastics found in every human testicle in study

Microplastics have been found in human testicles, with researchers saying the discovery might be linked to declining sperm counts in men.

The scientists tested 23 human testes, as well as 47 testes from pet dogs. They found microplastic pollution in every sample.

The human testicles had been preserved and so their sperm count could not be measured. However, the sperm count in the dogs’ testes could be assessed and was lower in samples with higher contamination with PVC. The study demonstrates a correlation but further research is needed to prove microplastics cause sperm counts to fall.

Sperm counts in men have been falling for decades, with chemical pollution such as pesticides implicated by many studies. Microplastics have also recently been discovered in human blood, placentas and breast milk, indicating widespread contamination of people’s bodies. The impact on health is as yet unknown but microplastics have been shown to cause damage to human cells in the laboratory.

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Scientists uncover evidence that microplastics are contaminating archaeological remains

Researchers have for the first time discovered evidence of microplastic contamination in archaeological soil samples.

The team discovered tiny microplastic particles in deposits located more than 7 meters deep, in samples dating back to the first or early second century and excavated in the late 1980s.

Preserving archaeology in situ has been the preferred approach to managing historical sites for a generation. However, the research team say the findings could prompt a rethink, with the tiny particles potentially compromising the preserved remains.

Microplastics are small plastic particles, ranging from 1 μm to 5 mm. They come from a wide range of sources, from larger plastic pieces that have broken apart, or resin pellets used in plastic manufacturing which were frequently used in beauty products up until around 2020.

The study, published in the journal Science of the Total Environment, was carried out by the universities of York and Hull and supported by the educational charity York Archaeology.

Professor John Schofield from the University of York’s Department of Archaeology, said, “This feels like an important moment, confirming what we should have expected: That what were previously thought to be pristine archaeological deposits, ripe for investigation, are in fact contaminated with plastics, and that this includes deposits sampled and stored in the late 1980s.

“We are familiar with plastics in the oceans and in rivers. But here we see our historic heritage incorporating toxic elements. To what extent this contamination compromises the evidential value of these deposits, and their national importance is what we’ll try to find out next.”

David Jennings, chief executive of York Archaeology, added, “We think of microplastics as a very modern phenomenon, as we have only really been hearing about them for the last 20 years, when Professor Richard Thompson revealed in 2004 that they have been prevalent in our seas since the 1960s with the post-war boom in plastic production,”

“This new study shows that the particles have infiltrated archaeological deposits, and like the oceans, this is likely to have been happening for a similar period, with particles found in soil samples taken and archived in 1988 at Wellington Row in York.”

The study identified 16 different microplastic polymer types across both contemporary and archived samples.

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Boiling Hard Tap Water Removes Up To 90% Of Microplastics: Study

Boiling tap water is good for more than just killing certain harmful pathogens. It can also destroy contaminants such as microplastics and chemicals, making drinking water safer to drink.

A new research letter published in Environmental Science & Technology Letters indicates that boiling tap water for just five minutes could reduce the amount of microplastics by up to 90 percent. Researchers from Guangzhou Medical University and the Center for Environmental Microplastics Studies in China recommend boiling water in nonplastic electric kettles on gas stoves to remove impurities such as polystyrene, polyethylene, and polypropylene.

According to the researchers, boiling water has been used since ancient times as a purification method in some Asian countries. “This simple boiling-water strategy can ‘decontaminate’ [nano- and microplastics] from household tap water and has the potential for harmlessly alleviating human intake of [nano- and microplastics] through water consumption,” they wrote.

Harder Water Captures More Microplastics

Water of a certain alkalinity and hardness typically produces incrustants—insoluble mineral remnants like calcium carbonate—upon boiling. For the study, the researchers hypothesized that calcium carbonate encounters nanoplastics as it crystallizes in hot water. The calcium carbonate then encapsulates the nanoplastics as it becomes the flaky crust you sometimes see at the bottom of your tea kettle.

The study showed that boiling hard tap water containing 300 milligrams per liter (mg/L-1) of calcium carbonate reduced nano- and microplastics by nearly 90 percent, while water containing 80 mg/L-1 reduced particles by 84 percent. In soft water samples containing less than 60 mg/L-1 of calcium carbonate, boiling still reduced plastics by over 25 percent.

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50 Years of Fraud: Big Oil, Plastics Industry Lied About Recycling, Documents Reveal

Plastic makers and petrochemical industry players have engaged in a decades-long fraud aimed at deceiving the public about plastic recycling, according to a new report that spotlights freshly uncovered industry communications and internal documents.

The report comes as the global plastic waste crisis deepens, and as environmental advocacy organizations are increasingly calling for major fossil fuel and petrochemical companies to be held responsible for plastic pollution that poses a threat to human and planetary health.

“Despite their long-standing knowledge that recycling plastic is neither technically nor economically viable, petrochemical companies — independently and through their industry trade associations and front groups — have engaged in fraudulent marketing and public education campaigns designed to mislead the public about the viability of plastic recycling,” asserts the new report, released by the Center for Climate Integrity (CCI) on Feb.15.

In detailing the plastics industry’s campaign of deception that dates back more than 50 years, the report reveals how the industry deployed a familiar strategic playbook to push back on threats of regulation by promoting a misleading narrative and false claims about plastics and recycling, despite knowing all along that plastics’ recyclability was more of a public relations message than an effective solution to the waste management problem.

“This evidence shows that many of the same fossil fuel companies that knew and lied for decades about how their products cause climate change have also known and lied to the public about plastic recycling,” CCI President Richard Wiles said in a statement.

“When corporations and trade groups know that their products pose grave risks to society, and then lie to the public and policymakers about it, they must be held accountable.”

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A Strange Plastic Rock Has Ominously Invaded 5 Continents

By now, many of us have seen the disturbing photos of the Great Pacific Garbage Patch, where the vortex forces of the world’s biggest ocean has created two massive patches of plastic waste and other maritime trash that litters our watery globe. But plastics aren’t happy just remaining in the form of a discarded shopping bag or McDonald’s straw—plastics tend to get everywhere. In fact, plastics are so ubiquitous, they reside in your body right now.

Plastics are now also infecting the Earth’s geology—so much that experts are now calling to formally recognize a new kind of sedimentary rock: plastistone. Deyi Hou, an associate professor at Tsinghua University in China, and his colleague Liuwei Wang recently wrote a paper about the emergence of this new plastic-rock fusion.

“Sedimentary rocks are the dominant rock type found on the Earth’s surface, and they are highly susceptible to influence by human activities,” the paper reads. “We contend that these novel plastic forms meet the criteria of a sedimentary rock…we propose the adoption of an existing term ‘plastistone’ with a revised definition to collectively describe these novel plastic forms.”

This past March, geologist Fernanda Avelar Santos reported evidence of a “disturbing” find on a remote island of Trindade, which is about a four-day boat trip from Brazil. It was in this seemingly untouched paradise that geologists discovered stones effectively fused with plastic trash that formed a new type of rock.

And this wasn’t the first example.

Ten years prior, geologists first spotted these hybrid rock specimens on the coast of Hawaii. And since then, these stones have been found across five continents and 11 countries, according to Hou and Wang. Although some experts call these stones plastiglomerate, plastitar, plasticrust, or anthropoquinas, this paper puts forward the term “plastistone”—first coined in 2022—to keep nomenclature aligned with other sedimentary rock, such as limestone, dolostone, sandstone, and mudstone.

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Massachusetts Marijuana Retailer Encourages Package Recycling With Discounted $4 Joint Offer

One of the state’s cannabis retailers is encouraging customers to recycle the plastic that encases certain cannabis products by offering them a $4 pre-rolled joint for every piece of packaging they return.

In the heavily regulated cannabis industry, nearly every product is required to come in child-resistant packaging that is typically made of plastic. Most of that plastic is not recyclable and ends up in the trash or tossed on the ground.

“Living in the city of Boston, I saw these [pre-roll] tubes all over the streets, they’re everywhere,” said Ture Turnbull, who with Wes Ritchie owns Tree House Craft Cannabis dispensaries in Pepperell and Dracut. “So we looked at what needed to be done, what the industry was doing to address this, what the policies around this were, and what opportunity there was for us to do right.”

Tree House’s recycling program incentivizes consumers to bring back their used packaging to the dispensary. Specifically, customers can return the plastic pop-top tubes that hold pre-rolled joints and the square-lidded containers that hold marijuana flower. For each piece of packaging customers return, they can buy a pre-rolled joint for $4—a price that yields savings ranging from $4 to $8 depending on what joint is on offer.

The brand of the pre-roll currently being offered is the company’s own Yellow Brick Road. Since May, when Tree House started the program, customers have returned more than 6,000 pieces of packaging and the company has offered an equivalent number of $4 pre-rolls.

“We literally had to put our money where our mouth is to create this incentive program because it has a monetary hit to us, but a benefit to the consumer, and that’s the only way we could actually see it taking off, to incentivize it,” said Turnbull. “This is the first try at a serious program that says: Let’s take the plastic and recycle it. Let’s take this environmental concern seriously.”

Tree House uses the recycled packaging in two ways. If the packaging is intact, it’s reused to package new products. If not, the company commissions artwork for its dispensaries that incorporates the plastic.

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Which Countries Pollute The Most Ocean Plastic Waste?

Millions of metric tons of plastic are produced worldwide every year. While half of this plastic waste is recycled, incinerated, or discarded into landfills, a significant portion of what remains eventually ends up in our oceans.

In fact, many pieces of ocean plastic waste have come together to create a vortex of plastic waste thrice the size of France in the Pacific Ocean between California and Hawaii.

Where does all of this plastic come from? In this graphic, Visual Capitalist’s Freny Fernandes and Louis Lugas Wicaksono used data from a research paper by Lourens J.J. Meijer and team to highlight the top 10 countries emitting plastic pollutants in the waters surrounding them.

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Recycle THIS! Greenpeace admits plastic should just be thrown away

The green agenda across America has taken a huge hit, with a report confirming that Greenpeace is admitting that recycling plastic as “largely failed.”

The City-Journal cited the environmental organization’s recent report that was headlined, warningly, “Plastic Recycling Is A Dead-End Street – Year After Year, Plastic Recycling Declines Even as Plastic Waste Increases.”

The Greenpeace article found: “Mechanical and chemical recycling of plastic waste has largely failed and will always fail because plastic waste is: (1) extremely difficult to collect, (2) virtually impossible to sort for recycling, (3) environmentally harmful to reprocess, (4) often made of and contaminated by toxic materials, and (5) not economical to recycle.”

“This has been obvious for decades to anyone who crunched the numbers, but the fantasy of recycling plastic proved irresistible to generations of environmentalists and politicians. They preached it to children, mandated it for adults, and bludgeoned municipalities and virtue-signaling corporations into wasting vast sums—probably hundreds of billions of dollars worldwide—on an enterprise that has been harmful to the environment as well as to humanity,” the City-Journal reported.

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Microplastics found in human blood for first time in ‘extremely concerning’ study

The world’s first study to look for the presence of plastics in human blood detected particles in 77 per cent of those tested, new research has found.

PET plastic, most commonly used to produce drinks bottles, food packaging and clothes, was the most prevalent form of plastic in the human bloodstream.

The authors said plastic particles can enter the body from the air as well as through food and drink.

Dick Vethaak, professor of ecotoxicology and water quality and health at the Vrije Universiteit Amsterdam in the Netherlands, told The Independent the findings were “certainly alarming because it shows that people apparently ingest or inhale so much plastic that it can be found in the bloodstream”.

“Such particles can cause chronic inflammation,” he added.

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