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PFAS, short for perfluoroalkyl and polyfluoroalkyl substances, they are often written as per and polyfluoroalkyl, causing confusion. And dangerous they are and with the additional problem of being extremely difficult to get rid of. As stated below, there are still no government limits set, but one of Andrew Wheeler’s last acts as head of the Environmental Protection Agency was to propose limits. We have an up-coming post on this issue. Since Wheeler was infamously anti-environment, we have doubts as to its efficacy.
Also we have an up-coming post on recent progress by scientists on disposing of PFAS, even though there is a long way to go in even understanding these chemicals.
Thanks to Merrillee Malwitz-Jipson and Bill Basta for links to this article.
Read the complete article here in the Guardian.
Comments by OSFR historian Jim Tatum.
– A river is like a life: once taken,
it cannot be brought back © Jim Tatum
Despite its ever-growing popularity in the US, bottled water is atrocious for the environment. To quote Harvard University’s Office for Sustainability, “The entire life cycle of bottled water uses fossil fuels, contributes to global warming, and causes pollution.”
Although water bottles are recyclable, Americans throw away about 80% of the bottles they use – and, by some estimates, Americans use 1,500 plastic bottles of water every second. Plastic bottles contribute immensely to global environmental crises, in part due to the fact that they disintegrate into microplastics, the presence of which are so ubiquitous researchers recently discovered them in the placentas of unborn babies. Bottled water takes 2,000 times the energy to produce and ship than its tap equivalent. The extraction and manufacturing processes used by bottled water corporations can also have negative environmental and economic effects, and amount to the privatization and commodification of a limited and invaluable resource to which all should have a universal right.
When it comes to the health qualities of bottled water versus tap, differences are largely negligible. Both tap and bottled water are required to meet quality requirements set by the EPA and FDA, respectively. Contamination is always possible in either – and is an urgent issue affecting tap water in parts of the US – but by prevailing standards both are generally fine to drink.
Prevailing standards, however, have not quite caught up to the threat of PFAS – a group of industrial chemicals numbering in the thousands and used in a variety of consumer products. PFAS have been found in both tap and bottled water. There is currently no federal guidance on PFAS regulation, though there is evidence that the most-studied forms of PFAS are carcinogenic and linked to liver damage, thyroid disease, and pregnancy risks, among other adverse health effects.
“PFAS have been found in the blood of over 98% Americans,” Dr Rebecca Aicher, project director at the Center for Scientific Evidence in Public Issues, told me. “Because the research has shown there may be human health effects, there’s a lot of interest in where the exposure is coming from – [and] we know there is exposure from drinking water.”
According to The Environmental Working Group, as of January 2021, 2,337 locations in 49 states are known to have PFAS contamination in their water systems. Last autumn, Consumer Reports also found concerning levels of PFAS in popular bottled water brands, including Nestlé products from the Perrier and Poland Spring lines, and canned carbonated waters like Bubly and LaCroix, among others.
So, where does this leave those of us who simply want to stay hydrated?
“Most importantly,” says Aicher, “municipal water must be tested to determine if there are PFAS in the water – that’s the first step, to encourage states and communities to have sampling and monitoring plans for PFAS.” Bottled water companies, it follows, must also be held accountable to test for PFAS….
“All of the under-sink reverse osmosis and two-stage filters achieved near-complete removal of the PFAS chemicals we were testing for,” Dr Heather Stapleton, who worked on the study, said in a Duke University release. “In contrast, the effectiveness of activated-carbon filters used in many pitcher, countertop, refrigerator and faucet-mounted styles was inconsistent and unpredictable. The whole-house systems were also widely variable and in some cases actually increased PFAS levels in the water.”
Even then, there is the issue of what to do with your PFAS-riddled filter once you’re finished with it. Effective water filters may remove PFAS, “but you’re not actually destroying the PFAS. So once you’ve pulled the PFAS out of the water there’s actually waste that needs to be dealt with, because the PFAS are still intact,” says Aicher.
If tossed into a landfill, PFAS will leech [sic] right back out into waterways. They can be incinerated at a very high temperature, but unless you have access to an industrial incinerator, you’re stuck waiting for state intervention, or the EPA’s action plan to address the presence of PFAS in drinking water to take meaningful effect in your community.
I know – it’s hard to swallow.
- Adrienne Matei is a freelancer writer
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