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Are you concerned about PFAS in drinking water? Here’s what the evidence says about home filters

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Recent reports about PFAS “forever chemicals” in Australian water supplies have sparked much controversy. Many people ask how they will remove these contaminants from their home drinking water.

In short, doing this effectively and efficiently at home is difficult and expensive.

The U.S. Environmental Protection Agency provides useful and clear advice about per- and polyfluoroalkyl substances (PFAS) and the way they could be faraway from drinking water.

One of the foremost challenges in removing PFAS chemicals from drinking water is the sheer number (over 10,000) of individual chemicals in this group. US authorities warn may cause cancer for an extended time frame. No single filtration or purification technology is 100% effective in removing them.

So what are the options? Can you filter an excessive amount of drinking water?



Four systems of treatment

US authorities reviewed dozens of controlled studies on easy methods to remove PFAS and other contaminants from drinking water. The costs related to many treatment options to remove PFAS could be high. Many of the most cost-effective filters won’t be effective.

There are 4 broad drinking water treatment systems to remove such contaminants in the home.

1. Activated carbon

The first two treatment systems use an adsorption (somewhat than absorption) process to draw and capture PFAS and other contaminants from the water. Absorption occurs when one substance is absorbed by one other, but adsorption occurs when molecules persist with the surface of one other substance. Adsorption using “activated carbon” is a widely used industrial technology process for drinking water treatment to remove numerous substances.

Adsorption binds PFAS or other contaminants through ionic bonds using negatively or positively charged particles. This could be is used to filter water as “granulated activated carbon” or as “carbon block filters”. These are two broad forms of water filters that use activated carbon.

2. Ion exchange resins

This second adsorption treatment uses different formulations of resin (or polymers) to chemically attract and remove goal contaminants in the water. Ion exchange filters use very small “microspheres” which have a big surface area to draw and take away contaminants.

Filtration elements similar to reverse osmosis membranes require maintenance.
damaradis/Shutterstock

3. Reverse osmosis

This process uses electricity to create pressure to push water through semi-permeable filtration membranes, normally fabricated from layers of polyester material. The membrane has tiny holes through which only water molecules can pass. This system creates a waste liquid, often called “brine”. It incorporates accrued chemicals and other substances that were unable to go through the membrane.

Reverse osmosis is a preferred technology used on a really large scale to purify water. For example, desalination plants use this technique to remove salt from seawater in order to acquire drinking water.

Such systems are also widely available on a smaller scale for home water treatment. They are widely used in regional Australia where water sources are sometimes highly saline or contain other contaminants. They could be installed in home plumbing or smaller tabletop systems.

4. Distillation

The fourth treatment system is “distillation” From water. This process uses heat to boil water to create steam. It then allows the steam to chill and condense, then collects the resulting purified water.

It is just not widely used, even though it is one among the oldest water purification systems. It doesn’t at all times reliably produce clean water because many chemicals have a lower boiling point than water. As a result, they may evaporate, condense and contaminate the processed water.

The means of boiling water by itself won’t remove PFAS chemicals.

There is such a thing as too clean

A word of warning: drinking demineralized water produced by reverse osmosis or distillation can have numerous unfavorable consequences.

People need minerals similar to calcium and magnesium provided by drinking water. Although many essential minerals come from food and a balanced eating regimen, a scarcity of them in water can disrupt an individual’s electrolyte balance and may cause numerous disorders health problems. If you drink demineralized water, it will be clever to hunt it out Medical advice.

In addition, demineralized water could also be aggressive to water and sewage systems, increasing the rate of corrosion of pipes and household appliances. This can dissolve metals from the plumbing into drinking water, as shown in a very large scale when a brand new water source caused corrosion and increased lead levels in Flint, Michigan.

water treatment plant from above
Treatment at the drinking water source is a significantly better long-term option.
AU USAnakul/Shutterstock

The most significant thing

Finding information on the best system to remove PFAS chemicals from drinking water is difficult. Guidance from Australian government agencies and the water industry seems absent or inadequate. And finding impartial advice is difficult.

My own advice, based on published research, would probably be a reverse osmosis filter, a two-stage “under the sink” type.

Detailed 2020 study drinking water and PFAS in greater than 60 U.S. homes were tested. This demonstrated near complete removal of all PFAS chemicals by reverse osmosis, dual filtration systems. Carbon filters were less efficient, with a maximum efficiency of 70% in removing these contaminants.

Homeowners can even have to be sure that PFAS filtration systems are recurrently maintained. With installation, this could be very expensive. The simplest stationary carbon filter system will cost AUD 100-200. All filters turn into clogged and require cleansing or substitute. Replacement filters cost around $30-$80.

Under-sink reverse osmosis systems are dearer, starting from $400 to over $1,000. You might want to hire a plumber for installation. Again, the system requires cleansing and maintenance.

Australian governments should require regular testing of all municipal water supplies nationwide. Many supplies likely already meet the stringent latest US PFAS standards.

Finally, search for information about PFAS in drinking water water supplierHome filtration in your area may simply be a waste of cash!

This article was originally published on : theconversation.com
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Health and Wellness

Jury awarded $310 million to parents of teenager who died after falling on a ride at Florida amusement park – Essence

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Sun Sentinel/Getty Images

The family of Tire Sampson, the 14-yr-old who tragically died on an amusement park ride in Orlando, Florida, in 2022, has been awarded $310 million in a civil lawsuit.

Tire, who was visiting ICON Park along with his family on March 24, 2022, fell from the FreeFall drop tower. Although he was taken to a nearby hospital, he didn’t survive his injuries.

Now, greater than two years later, a jury has held the vehicle manufacturer, Austria-based Funtime Handels, responsible for the accident and awarded the Tire family $310 million. According to reports from local news stations WFTV AND KSDKthe jury reached its verdict after about an hour of deliberation.

Tyre’s parents will each receive $155 million, according to attorney spokesman Michael Haggard.

Attorneys Ben Crump and Natalie Jackson, who represented Tyre’s family, shared their thoughts on this landmark decision via X (formerly Twitter). “This ruling is a step forward in holding corporations accountable for the safety of their products,” they said in a statement.

Lawyers stressed that Tyre’s death was attributable to “gross negligence and a failure to put safety before profits.” They added that the ride’s manufacturer had “neglected its duty to protect passengers” and that the substantial award ensured it could “face the consequences of its decisions.”

Crump and Jackson said they hope the result will encourage change throughout the theme park industry. “We hope this will spur the entire industry to enforce more stringent safety measures,” they said. “Tire heritage will provide a safer future for drivers around the world.”

An investigation previously found that Tyre’s harness was locked through the descent, but he dislodged from his seat through the 430-foot fall when the magnets engaged. Tire’s death was ruled the result of “multiple injuries and trauma.”

ICON Park said at the time that it could “fully cooperate” with the authorities.

This article was originally published on : www.essence.com
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Health and Wellness

Tireless HIV/AIDS advocate A. Cornelius Baker dies

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HIV/AIDS Advocate, A. Cornelius Baker


A. Cornelius Baker, a tireless advocate of HIV and AIDS testing, research and vaccination, died Nov. 8 at his home in Washington, D.C., of hypertensive, atherosclerotic heart problems, in response to his partner, Gregory Nevins.

As previously reported, Baker was an early supporter for people living with HIV and AIDS within the Nineteen Eighties, when misinformation and fear-mongering in regards to the disease were rampant.

According to Douglas M. Brooks, director of the Office of National AIDS Policy under President Obama, it was Baker’s Christian faith that guided him toward compassion for others.

“He was very kind, very warm and inclusive – his circles, both professional and personal, were the most diverse I have ever seen, and he was guided by his Christian values,” Brooks told the outlet. “His ferocity was on display when people were marginalized, rejected or forgotten.”

In 1995, when he was executive director of the National AIDS Association, Baker pushed for June 27 to be designated National HIV Testing Day.

In 2012, he later wrote on the web site of the Global Health Advisor for which he was a technical advisor that: “These efforts were intended to help reduce the stigma associated with HIV testing and normalize it as part of regular screening.”

https://twitter.com/NBJContheMove/status/1856725113967632663?s=19

Baker also feared that men like himself, black gay men, and other men from marginalized communities were disproportionately affected by HIV and AIDS.

Baker pressured the Clinton administration to incorporate black and Latino people in clinical drug trials, and in 1994 he pointedly told the Clinton administration that he was bored with hearing guarantees but seeing no motion.

According to Lambda Legal CEO Kevin Jennings, yes that daring attitude that defines Baker’s legacy in the world of ​​HIV/AIDS promotion.

“Cornelius was a legendary leader in the fight for equality for LGBTQ+ people and all people living with HIV,” Jennings said in a press release. “In the more than twenty years that I knew him, I was continually impressed not only by how effective he was as a leader, but also by how he managed to strike the balance between being fierce and kind at the same time. His loss is devastating.”

Jennings continued: “Cornelius’ leadership can’t be overstated. For many years, he was one in all the nation’s leading HIV/AIDS warriors, working locally, nationally and internationally. No matter where he went, he proudly supported the HIV/AIDS community from the Nineteen Eighties until his death, serving in various positions including the Department of Health and Human Services, the National Association of Persons with Disabilities AIDS, and the Whitman-Walker Clinic . Jennings explained.

Jennings concluded: “His career also included several honors, including being the first recipient of the American Foundation for AIDS Research Foundation’s organization-building Courage Award. Our communities have lost a pillar in Cornelius, and as we mourn his death, we will be forever grateful for his decades of service to the community.”

Kaye Hayes, deputy assistant secretary for communicable diseases and director of the Office of Infectious Diseases and HIV/AIDS Policy, in her comment about his legacy, she called Baker “the North Star.”.

“It is difficult to overstate the impact his loss had on public health, the HIV/AIDS community or the place he held in my heart personally,” Hayes told Hiv.gov. “He was pushing us, charging us, pulling us, pushing us. With his unwavering commitment to the HIV movement, he represented the north star, constructing coalitions across sectors and dealing with leaders across the political spectrum to deal with health disparities and advocate for access to HIV treatment and look after all. He said, “The work isn’t done, the charge is still there, move on – you know what you have to do.” It’s in my ear and in my heart in the case of this job.

Hayes added: “His death is a significant loss to the public health community and to the many others who benefited from Cornelius’ vigilance. His legacy will continue to inspire and motivate us all.”

Baker is survived by his mother, Shirley Baker; his partner Nevins, who can be senior counsel at Lambda Legal; his sisters Chandrika Baker, Nadine Wallace and Yavodka Bishop; in addition to his two brothers, Kareem and Roosevelt Dowdell; along with the larger HIV/AIDS advocacy community.


This article was originally published on : www.blackenterprise.com
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Health and Wellness

Bovaer is added to cow feed to reduce methane emissions. Does it pass into milk and meat? And is it harmful to humans?

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There are growing concerns in regards to the use of feed supplements, Bowar 10to reduce methane production in cows.

Bovaer 10 consists of silicon dioxide (mainly sand), propylene glycol (food stabilizer approved by Food Safety Australia New Zealand) and lively substance 3-nitrooxypropanol (3-NOP).

There has been an enormous amount of misinformation in regards to the safety of 3-NOP, with some milk from herds fed this additive being labeled “Frankenmilk”. Others feared it could get to humans through beef.

The most significant thing is that 3-NOP is secure. Let’s clear up some major misconceptions.

Why do we want to limit methane production?

In our attempts to limit global warming, we’ve placed the best emphasis on CO₂ because the major man-made greenhouse gas. But methane is also a greenhouse gas, and although we produce less of it, it is: a much stronger greenhouse gas than CO₂.

Agriculture is the largest a man-made source of methane. As cattle herds expand to meet our growing demand for meat and milk, reducing methane production from cows is a vital way to reduce greenhouse gas emissions.

There are several ways to do that. Stopping bacteria within the stomachs of cows that produce methane one approach is to produce methane.

The methane produced by cows and sheep doesn’t come from the animals themselves, but from the microbes living of their digestive systems. 3-NO stop the enzymes that perform the last step of methane synthesis in these microorganisms.

3-NOP is not the one compound tested as a feed additive. Australian product based on seaweed, Rumin8for instance, it is also in development. Saponins, soap-like chemicals present in plants, and essential oils as well has been examined.

However, 3-NOP is currently one of the popular effective treatments.

Nitrooxypropanol structure: red balls are oxygen, gray carbon, blue nitrogen and white hydrogen.
PubChem

But is not it poison?

There are concerns on social media that Bovaer is “poisoning our food.”

But, as we are saying in toxicology, it’s the dose that makes the poison. For example, arsenic is deadly 2–20 milligrams per kilogram of body weight.

In contrast, 3-NOP was not lethal on the doses utilized in safety studies, up to 600 mg 3-NOP per kg body weight. At a dose of 100 mg per kg body weight in rats, it didn’t cause any adversarial effects.

What about reproductive issues?

The effect of 3-NOP on the reproductive organs has generated numerous commentary.

Studies in rats and cows showed that doses of 300–500 mg per kg body weight caused: contraction of the ovaries and testicles.

In comparison, to achieve the identical exposure in humans, a 70 kg human would want to eat 21–35 grams (about 2 tablespoons) of pure 3-NOP every day for a lot of weeks to see this effect.

No human will likely be exposed to this amount because 3-NOP doesn’t pass into milk – is fully metabolized within the cow’s intestines.

No cow will likely be exposed to these levels either.

The cow licks itself
Cows will not be exposed to levels tested on animals in laboratory studies.
Ground photo/Shutterstock

What about cancer?

3-NOP is not genotoxic or mutagenicwhich implies it cannot damage DNA. Thus, the results of 3-NOP are dose-limited, meaning that small doses will not be harmful, while very high doses are (unlike radiation where there is no secure dose).

Scientists found that at a dose of 300 mg per kilogram of body weight benign tumors of the small intestine of female ratsbut not male rats, after 2 years of every day consumption. At a dose of 100 mg 3-NOP per kg body weight, no tumors were observed.

Cows eat lower than 2 grams of Bovaer 10 per day (of which only 10% or 0.2 grams is 3-NOP). This is about 1,000 times lower than the appropriate every day intake 1 mg 3-NOP per kg body weight per day for a cow weighing 450 kg.

This level of consumption will likely be not the result in cancer or any of them other adversarial effects.

So how much are people exposed to?

Milk and meat consumers will likely be exposed to zero 3-NOP. 3-NOP doesn’t penetrate milk and meat: is completely metabolized within the cow’s intestines.

Farmers could also be exposed to small amounts of the feed additive, and industrial employees producing 3-NOP will potentially be exposed to larger amounts. Farmers and industrial employees already wear personal protective equipment to reduce exposure to other agricultural chemicals – and it is advisable to do that with Bovear 10 as well.

Milk
3-NOP doesn’t penetrate milk and meat.
Shutterstock

How widely has it been tested?

3-NOP has been in development for 15 years and has been subject to multiple reviews by European Food Safety Authority, UK Food Safety Authority AND others.

It has been extensively tested over months of exposure to cattle and has produced no unintended effects. Some studies actually say so improves the standard of milk and meat.

Bovaer was approved for use in dairy cattle by the European Union from 2022 and Japan in 2024. It is also utilized in many other countries, including: in beef products, amongst others Australia.

A really small amount of 3-NOP enters the environment (lower than 0.2% of the dose taken), no accumulates and is easily decomposed subsequently, it doesn’t pose a threat to the environment.

Since humans will not be exposed to 3-NOP through milk and meat, long-term exposure is not an issue.

What does Bill Gates have to do with this?

Bill Gates has invested in a distinct feed processing method for methane, Australian seaweed-based Rumin8. But he has nothing to do with Bovaer 10.

The Bill & Melinda Gates Foundation awarded research grants to the corporate producing 3-NOP for malaria control researchnot for 3-NOP.

The bottom line is that adding 3-NOP to animal feed doesn’t pose any risk to consumers, animals or the environment.

This article was originally published on : theconversation.com
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