#nanoplastics

ETA: Article here (can't believe I forgot this rip)

A new study finds you can reduce the amount of microplastics you drink simply by boiling your water.

Scientists are just beginning to understand the health risks associated with microplastic exposure.

Nano- and microplastics are bits of plastic as tiny as one-thousandth of a millimeter in diameter.

Boiling and filtering your tap water may dramatically lower the amount of microplastics you drink, according to new research.

Recent studies have found that nano- and microplastics (NMPs), which are bits of plastic as tiny as one-thousandth of a millimeter in diameter, have been found in a host of products and even in tap water.

A new study, published February 28 in Environmental Science & Technology Letters, found that boiling mineral-rich water for just five minutes can reduce the amount of NMP you’re exposed to by up to 90%.

Scientists are just beginning to understand the health risks associated with microplastic exposureTrusted Source, but growing evidenceTrusted Source suggests the plastics can accumulate in the body and trigger oxidative stress, inflammation, insulin resistance, and liver issues.

Certain advanced water filtration systems can capture and help remove some NMPs from tap water. But researchers wanted to figure out other options to remove microplastics, especially since in poorer countries cheaper, more accessible solutions for clean water are needed.

Boiling water may be a safe, simple solution that can effectively decontaminate household tap water, the new findings suggest.

“Boiling water before drinking is a great example of an ancient cultural practice that can help reduce an environmental exposure,” Dr. Luz Claudio, PhD, a professor of environmental medicine and public health at the Icahn School of Medicine at Mount Sinai, told Healthline.

Claudio was not involved in the study.

How boiling water can help remove microplastics

The researchers found simply boiling water is the first step to removing NMPs from tap water.

The researchers collected multiple samples of tap water from Guangzhou, China and contaminated the samples with varying levels of NMPs.

Each sample was boiled for five minutes then left to cool for 10 minutes.

Boiling hard water that’s rich with minerals — such as calcium or magnesium — creates a chalk-like residue known as limescale, or calcium carbonate (CaCO3), which can trap the plastics.

That solid, chalky residue then had to be separated and removed from the water with a standard coffee filter or stainless steel filter, thereby removing NMPs.

The team found that the impact was greatest in harder water: In samples that had 300 milligrams of CaCO3, for example, nearly 90% of NMPs were removed.

In softer water samples with less than 60 mg of CaCO3, roughly 25% of NMPs were removed.

“What’s important to note here is that the effectiveness of trapping these micro/nano plastics in these mineral solids is tied to how hard the water is – the harder the water, the more solids are formed, the more microplastics are trapped,” Dr. Anja Brandon, PhD, the associate director of U.S. plastics policy at Ocean Conservancy and an environmental engineer, told Healthline.

Brandon was not involved in the study...

How to limit your exposure to microplastics 

Anyone who wishes to boil their water should do so in a glass or stainless steel pot.

After boiling the water for about five minutes, let it cool, and do not stir it, Claudio says.

The microplastics need to bind to the calcium and fall to the bottom of the pot so they can filtered or scooped out."

Research led by Zhejiang Agriculture and Forestry University in China has performed a metadata investigation into the presence of microplastics in humans. They report a concerning relationship between micro and nanoplastic (MNP) concentrations in damaged tissues and links with multiple health conditions. Plastic usage soared from 1.5 million metric tons in the 1950s to nearly 390.7 million in 2021. With the increased use in consumer products came elevated microscopic plastic pollution circulating in soil and waterways, eventually accumulating in the environment, food webs and human tissues.

Well then, take another look at this idyllic GIF with fresh eyes, shall we?

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In a commentary also published in Nature, Katsiaryna Pabortsava from the National Oceanography Centre in Southampton, UK, writes: "Scientists have made great strides in understanding the extent of marine pollution from microplastics, but almost nothing is known about nanoplastic waste." She is certain that the 27 million ton estimate by Materić and colleagues is too low. Nanoplastics are also found on larger particles, such as accumulations of organic material, and in the bodies of marine organisms.

Natur

Yes, I always drink my café latte to go. What do I think about sustainability? Of course, clothes that have been produced more sustainably. And what about your disposable cups?

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Environmental protection starts with you!

Millions of tons of plastic waste enter the oceans each year. The sun's ultraviolet light and ocean turbulence break down these plastics into invisible nanoparticles that threaten marine ecosystems. In a new study, engineers at the University of Notre Dame have presented clear images of nanoplastics in ocean water off the coasts of China, South Korea and the United States, and in the Gulf of Mexico. These tiny plastic particles, which originated from such consumer products as water bottles, food packaging and clothing, were found to have surprising diversity in shape and chemical composition. The engineers' research was published in Science Advances. "Nanoplastics are potentially more toxic than larger plastic particles," said Tengfei Luo, the Dorini Family Professor of Aerospace and Mechanical Engineering at the University of Notre Dame. "Their small size makes them better able to penetrate the tissues of living organisms."