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."
-via Healthline, February 28, 2024
really needs to be said: We spent a CENTURY making drinking water safe, only for the Carbon Industry(of which plastic manufacture is a part) to pollute the world SO MUCH that everyone has to start boiling their water again.
