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Drinking/tap water thread (and ideal water filters/pitchers)


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Huberman lists some but he doesn't even capture all of the issues 

 

https://mytapscore.com/products/advanced-city-water-test

THEY STILL ALL LEAVE OUT THE MOST IMPORTANT: POLYSTYRENE AND PVC

https://mytapscore.com/products/microplastics-water-test?_pos=1&_sid=6135ed9de&_ss=r

is microplastics but i dont know what a report looks like.. you know, you could test the water at universities where the water is supposed to be super-clean... [and where a case can be argued for especially high social importance..]

https://www.pnas.org/doi/10.1073/pnas.2300582121

Water filtration creates its own MP contamination.. if you look at the graph, THE MAJORITY OF NPS are not from the bottle, but from the water itself...

Ideally, you'd test RIGHT BEFORE filtration and right after filtration

https://www.linkedin.com/feed/update/urn:li:activity:7150600847725383680/

The 2024 recent microplastics papers also show that contamination comes from the REVERSE OSMOSIS FILTER ITSELF

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Do you do water testing of canned beverages? Also do you do nanoplastics testing? What does a microplastics testing report look like? (does it have separate scores for polystyrene?)
 
Hi again
When you say "canned beverages" are you referring to something like bottled water? Or a non-water product (like a milk or juice)?
 
We currently do not offer any nanoparticle testing - as there are no commercially avaialbe methods for nanoparticles and nanoplastics (its typically only avaialbe in speciality university and academic reserach labs)
 
Our microplastics tests does not specifically identify the material of the plastics found. It only does concentration of microplastics (by particle size) and typically the plastic particles assoicated with bottled water and other packaged beverages are so small that are not very well captured by that test - so I just want to be transparent that it may not be a good fit
 
based on what you are describing/looking for 🙂
Edited by InquilineKea
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All four co-authors interviewed said they were cutting back on their bottled water use after they conduced the study.

Wei Min, the Columbia physical chemist who pioneered the dual laser microscope technology, said he has reduced his bottled water use by half. Stapleton said she now relies more on filtered water at home in New Jersey.

But study co-author Beizhan Yan, a Columbia environmental chemist who increased his tap water usage, pointed out that filters themselves can be a problem by introducing plastics.

“There’s just no win,” Stapleton said.

Outside experts, who praised the study, agreed that there’s a general unease about perils of fine plastics particles, but it’s too early to say for sure.

 

“The danger of the plastics themselves is still an unanswered question. For me, the additives are the most concerning,” said Duke University professor of medicine and comparative oncology group director Jason Somarelli, who wasn’t part of the research. “We and others have shown that these nanoplastics can be internalized into cells and we know that nanoplastics carry all kinds of chemical additives that could cause cell stress, DNA damage and change metabolism or cell function.”

Somarelli said his own not yet published work has found more than 100 “known cancer-causing chemicals in these plastics.”

What’s disturbing, said University of Toronto evolutionary biologist Zoie Diana, is that “small particles can appear in different organs and may cross membranes that they aren’t meant to cross, such as the blood-brain barrier.”

Diana, who was not part of the study, said the new tool researchers used makes this an exciting development in the study of plastics in the environment and body.

About 15 years ago, Min invented dual laser microscope technology that identifies specific compounds by their chemical properties and how they resonate when exposed to the lasers. Yan and Qian talked to him about using that technique to find and identify plastics that had been too small for researchers using established methods.

 

Kara Lavender Law, an oceanographer at the Sea Education Association, said “the work can be an important advance in the detection of nanoplastics” but she said she’d like to see other analytical chemists replicate the technique and results.

Denise Hardesty, an Australian government oceanographer who studies plastic waste, said context is needed. The total weight of the nanoplastic found is “roughly equivalent to the weight of a single penny in the volume of two Olympic-sized swimming pools.”

Hardesty is less concerned than others about nanoplastics in bottled water, noting that “I'm privileged to live in a place where I have access to ‘clean’ tap water and I don't have to buy drinking water in single use containers.”

Yan said he is starting to study other municipal water supplies in Boston, St. Louis, Los Angeles and elsewhere to see how much plastics are in their tap water. Previous studies looking for microplastics and some early tests indicate there may be less nanoplastic in tap water than bottled.

Even with unknowns about human health, Yan said he does have one recommendation for people who are worried: Use reusable bottles instead of single-use plastics.

 

 

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