美国饮用水中的“永远的化学物质”:一个日益严重的问题 'Forever Chemicals' In US Drinking Water: A Growing Problem

原始链接: https://www.zerohedge.com/medical/forever-chemicals-us-drinking-water-growing-problem

PFAS,即“永远的化学物质”,在环境中广泛存在,并与健康问题有关。 它们污染了美国和全球的饮用水,引发了人们的担忧。 接触 PFAS 会增加患癌症、生育问题和免疫系统挑战的风险。 这些化学物质很难被破坏,并且随着时间的推移会在环境和人类中积累。 美国环境保护署 (EPA) 制定了首个饮用水中 PFAS 国家标准,旨在保护社区免受过量接触。 专家强调私营公司和政府机构之间的合作,开发去除 PFAS 的创新水处理解决方案。 伙伴关系对于加快解决方案的步伐和共享资源至关重要。 研究人员发现了可以分解某些 PFAS 化学物质的细菌,为减轻污染提供了一种潜在的新方法。

PFAS, or "forever chemicals," are widespread in the environment and have been linked to health problems. They have contaminated drinking water in the US and globally, prompting concerns. Exposure to PFAS can increase the risk of cancer, fertility issues, and immune system challenges. These chemicals are difficult to destroy and accumulate in the environment and humans over time. The US Environmental Protection Agency (EPA) has set the first-ever national standard for PFAS in drinking water, aiming to protect communities from excessive exposure. Experts emphasize collaboration between private companies and government bodies to develop innovative water treatment solutions for PFAS removal. Partnerships are crucial to accelerate the pace of solutions and share resources. Researchers have identified bacteria that can break down certain PFAS chemicals, offering a potential new approach to mitigating contamination.


'Forever Chemicals' In US Drinking Water: A Growing Problem

Authored by Autumn Spredemann via The Epoch Times (emphasis ours),

Formally identified as perfluoroalkyl and polyfluoroalkyl substances, a group of manmade chemicals known as PFAS are found in everything from soil and food to common household items and water. An overabundance of these compounds has been detected in U.S. drinking water and that of other industrialized nations, sparking discussion on control and mitigation among experts.

Illustration by The Epoch Times, Shutterstock

Exposure to PFAS has been linked to serious chronic health issues such as increased risk of certain cancers, fertility problems, and immune system challenges.

Unlike some industrial chemicals, PFAS don’t break down and are difficult to destroy, thus earning the moniker “forever chemicals.”

Since the 1940s, PFAS compounds have been used in everyday items such as nonstick cookware, water-repellent clothes, stain-resistant fabrics, cosmetics, and firefighting foams, according to the Agency for Toxic Substances and Disease Registry.

Able to resist water, grease, oil, and heat, PFAS compounds quickly became popular. More than half a century later, these forever chemicals have become a growing health and environmental concern.

This year, the U.S. Environmental Protection Agency (EPA) said it has observed forever chemicals in America’s groundwater at alarming levels, prompting the first-ever national, enforceable standard for drinking water, meant to protect communities from dangerous amounts of PFAS exposure.

I believe this is a serious public health concern. From what I’ve seen in my work, chemical exposure—even at low levels—can affect communities long-term. And PFAS isn’t something that just disappears,” Previn Pillay, CEO of Pyromin Consulting, told The Epoch Times by email.

Pillay has dealt with complex water contamination issues including waste treatment and government compliance. He said forever chemicals can build up in people and the environment over time, causing a domino effect of negative consequences.

The U.S. Environmental Protection Agency building in Washington on Aug. 21, 2024. Tierney L. Cross/Getty Images

“Studies suggest that PFAS exposure can increase the risk of metabolic diseases, which is already becoming a growing issue in affected areas. I’ve seen how industrial contaminants, when not controlled, can cause health problems down the line. It’s something we just can’t ignore,” Pillay said.

Probable links between consumption of forever chemicals and negative health outcomes have been studied for years and the results paint a grim picture.

“First, the structure of PFAS means they resist breakdown in the environment and in our bodies. Second, they move relatively quickly through the environment, making their contamination hard to contain. Third, for some PFAS, even extremely low levels of exposure can negatively impact our health,” the senior strategic director of health and food for the Natural Resources Defense Council, Erik D. Olson, said in April.

On its website, the EPA states its new regulations are meant to “reduce PFAS exposure for approximately 100 million people, prevent thousands of deaths, and reduce tens of thousands of serious illnesses. EPA concurrently announced a further $1 billion to help states and territories implement PFAS testing and treatment at public water systems and to help owners of private wells address PFAS contamination.”

EPA data show it has detected PFAS in 7,237 U.S. public water systems.

Among the contaminants observed is lithium, a subclass of the forever chemicals group that’s a growing concern, according to the Pratt School of Engineering.

The National Institute of Environmental Health Science states that nearly 15,000 synthetic substances fall into the forever chemicals category.

This year, at hundreds of drinking water sites across the country, the nonprofit Environmental Working Group reported PFAS levels higher than the EPA’s proposed limits of 4 and 10 parts per trillion. Coastal states have the highest concentrations of above-regulation forever chemical contamination.

In October, the U.S. Government Accountability Office said PFAS may be America’s “biggest water problem since lead.”

Equipment used to test for perfluoroalkyl and polyfluoroalkyl substances, known collectively as PFAS, in drinking water at Trident Laboratories in Holland, Mich., on June 18, 2018. Cory Morse/The Grand Rapids Press via AP

Life Cycle Consideration

“As someone deeply embedded in the water filtration business for decades, I can affirm that the presence of PFAS in drinking water is a pressing public health concern,” Brian McCowin told The Epoch Times.

McCowin is the service manager at McCowin Water, the business his father started.

“To manage PFAS better, collaboration between private sectors like ours and regulatory bodies is key,”  McCowin said.

We’ve successfully steered complex water issues by prioritizing ethical practices and transparency with clients. This approach could inspire improved standards and accountability across the board.

Pillay also thinks cooperation is the fastest way to mitigate PFAS in American water.

“I think partnerships between private companies and government bodies can speed up solutions. Public-private partnerships would bring together the resources and expertise needed to drive faster water treatment innovations,” he said.

If we’re going to manage this PFAS contamination better, we need both sectors working together, sharing knowledge, and accelerating the development of advanced filtration systems.”

Although filtration has always been the go-to solution for removing PFAS in water, some researchers believe the scope of the contamination requires a new approach.

An environmental engineering team at the University of California, Riverside (UCR) published a study in July that discovered a special bacteria that can destroy certain types of forever chemicals. The microbes are already prevalent in wastewater.

In their observations, researchers noted the bacteria attack the previously impenetrable carbon-fluorine bond in PFAS compounds. This is a critical step towards removing the “forever” part of the chemicals.

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Tyler Durden Tue, 11/12/2024 - 05:00
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