FOREVER MAY NOT BE FOREVER WITH EPA’S NEW PFA LIMITS

Last month, the Environmental Protection Agency (EPA) finalized strict limits on PFAS, so-called “forever chemicals”, in drinking water that will require utilities to reduce them to the lowest level they can be reliably measured. Officials say this will reduce exposure for 100 million people and help prevent thousands of illnesses, including cancers. You may recall that in my August, 2023 newsletter ("Nothing Says Forever Like Diamonds and PFAS"), I wrote that PFAS are called "forever chemicals" because most don't break down, are found in many of our most commonly used products, including the water we drink. Among my recommendations for minimizing your exposure to PFAS, which have been linked to certain cancers, birth defects, liver damage, impaired fertility, high cholesterol and obesity, etc., was to "Drink filtered or bottled water". Carbon filters on faucets or in water pitchers can reduce the levels of PFAS if the filters are replaced regularly. However, not everyone can afford the couple hundred dollars such a system costs. Under the new rules being implemented by the Biden Administration, you may not need to install such an expensive system and can rely upon your municipal authority's regular drinking water, without worrying about over-exposure to PFAS. However, this won't happen overnight. Water providers will have three years to do testing on their systems. If those test results exceed the newly proposed limits, they'll have two more years to install treatment systems to reduce the amount of PFAS to below the EPA limits. Naturally, the utilities are warning us that the new rules will cost tens of billions of dollars each and will fall the hardest on small communities with fewer resources. And, of course, they promise that legal challenges will be sure to follow.

According to the EPA, nearly half of the water supply in the United States is contaminated with "forever chemicals." And EPA Administrator Michael Regan says the rule is the most important action the EPA has ever taken on PFAS: “The result is a comprehensive and life changing rule, one that will improve the health and vitality of so many communities across our country,” said Regan. 

Environmental and health advocates praised the rule, but said PFAS manufacturers knew decades ago the substances were dangerous yet hid or downplayed the evidence. Limits should have come sooner, they argue. “Reducing PFAS in our drinking water is the most cost effective way to reduce our exposure,” said Scott Faber, a food and water expert at Environmental Working Group. “It’s much more challenging to reduce other exposures such as PFAS in food or clothing or carpets.”

The EPA's new rule is that municipal water supplies cannot exceed 4 parts/trillion of PFAS. To put that in perspective, a utility outside Philadelphia that serves nearly 9,000 people learned last June that one of its wells had a PFOA (a form of PFAS) level of 235 parts/trillion, among the highest in the United States. The good news is the authority took the well offline immediately; the bad news is they now have to raise the money to replace the missing water with a less contaminated source.

The EPA expects that excess PFAS levels will be found in 6-10% of water systems, affecting some 100 million people in the United States. 


"This is historic and monumental," says Emily Donovan, co-founder of Clean Cape Fear, an advocacy group working to protect communities from PFAS contamination. "I didn't think the EPA would ever do it." Donovan lives in an area of North Carolina which has been contaminated with PFAS from the Chemours chemical manufacturing plant. She says seeing the EPA set limits is "validating." Six years ago when her group first raised the issue of PFAS, she says they were told that the water met or exceeded state and federal guidelines. "And that's because there weren't any," she says. "It really broke public trust for so many people in our community." 

The advice I gave in my August, 2023 newsletter, to drink bottled water or install your own treatment system, may be good advice TODAY. But with the EPA's new rule, over the next five years, you may be able to safely drink your local tap water without worrying about the effects of "forever chemicals".

A PREVENTABLE CRISIS: THE U.S. MEASLES SURGE AND THE COST OF ANTI-SCIENCE LEADERSHIP

By Ann K. • July 13, 2026
A Grim Milestone for American Public Health We are facing a public health emergency that was entirely preventable. According to updated data from the Centers for Disease Control and Prevention (CDC), the United States has recorded 2,170 confirmed measles cases in 2026—and we are only halfway through the year. This staggering figure nearly matches the 2,289 cases recorded across the entirety of 2025, representing a measles crisis on a scale this country has not seen in over three decades. Measles was declared officially eliminated from the United States in 2000, thanks to robust and widespread uptake of the Measles, Mumps, and Rubella (MMR) vaccine. Today, that monumental achievement is on the verge of being permanently erased.

WARNING LABELS FOR SOCIAL MEDIA: PROTECTING YOUR CHILDREN IN THE DIGITAL AGE

By Dr. Gerald Goldhaber • June 15, 2026
For decades, Americans have relied on warning labels to alert consumers to hidden dangers. Cigarette packages warn of cancer. Alcohol labels caution pregnant women. Medications disclose side effects. Yet one of the most powerful and potentially addictive products used by millions of children every day carries virtually no warning at all: social media. In 2024, as I wrote in the September, 2024 issue of this newsletter, then-U.S. Surgeon General Dr. Vivek Murthy called on Congress to require cigarette-style warning labels on social media platforms, arguing that parents and children deserve to know that excessive use has been linked to anxiety, depression, body image problems, sleep disruption, and other mental health concerns. He stated that social media had become an important contributor to the youth mental health crisis and that warning labels could help increase awareness among families. Unfortunately, that proposal has stalled under the new administration. The opportunity to provide parents with basic health information appears to have been abandoned just as evidence of social media's harmful effects continues to mount.

WARNING: USING AI FOR MEDICAL DIAGNOSES MAY BE HARMFUL TO YOUR HEALTH

By Dr. Gerald Goldhaber • April 30, 2026
Artificial intelligence (AI) is rapidly reshaping the landscape of healthcare, particularly in the realm of medical diagnosis. From analyzing medical images to predicting disease risk, AI-driven tools are increasingly being integrated into clinical workflows. While the potential benefits are substantial—improved accuracy, faster diagnoses, and expanded access to care—there are also meaningful risks that warrant careful scrutiny. Understanding both sides is essential for clinicians, policymakers, and patients alike.

LITHIUM-ION BATTERIES: A GROWING FIRE RISK IN OUR HOMES

By Dr. Gerald Goldhaber • March 31, 2026
Lithium-ion batteries power much of modern life. From smartphones and laptops to e-bikes, power tools, and even home energy storage systems, these compact and efficient batteries are everywhere. But as their use has expanded, so too has a serious and often underestimated danger: the risk of fire. Lithium-ion battery fires are not like typical household fires. They burn hotter, spread faster, and can reignite even after appearing to be extinguished. These fires are caused by a process known as “thermal runaway,” where damage, overheating, or internal defects trigger a chain reaction inside the battery. Once this process begins, it can release flammable gases, cause explosions, and produce intense flames that are difficult to control.

WARNING: THE TRUMP ADMINISTRATION’S EPA IS DISMANTLING REGULATIONS PROTECTING US FROM PFAS, PUTTING OUR LIVES AT RISK

By Dr. Gerald Goldhaber • February 27, 2026
1. Weakening National Drinking Water Standards  In April 2024, the EPA finalized the first federally enforceable National Primary Drinking Water Rule (NPDWR) for six PFAS, including PFOA, PFOS, PFHxS, PFNA, HFPO-DA (GenX), PFBS, and mixtures of these chemicals. These rules established maximum contaminant levels (MCLs) and required monitoring and treatment timelines for public water systems. Under Trump's EPA, this landmark public health rule is being undone :

THE SILENT WINTER THREAT: CARBON MONOXIDE POISONING DURING STORMS AND POWER OUTAGES

By Dr. Gerald Goldhaber • January 27, 2026
Winter in the Northern Hemisphere brings cold weather, snow, and often severe storms. These conditions can lead to power outages that last hours or even days. When electricity is lost and temperatures plummet, many households turn to alternative heating methods or portable power generators. While these actions are understandable, they can expose families to a perilous and often invisible threat: carbon monoxide (CO) poisoning . 

HOLIDAY FOOD SAFETY: PROTECTING YOUR FAMILY FROM SALMONELLA & LISTERIA THIS THANKSGIVING

By Dr. Gerald Goldhaber • November 24, 2025
As Thanksgiving approaches, kitchens across the country are about to come alive with the sounds and smells of holiday cooking. While this season brings family, gratitude, and plenty of delicious food, it also comes with a serious and often overlooked risk: foodborne illness. In the U.S., Salmonella and Listeria remain two of the most dangerous and persistent causes of food poisoning—especially during the holidays, when increased food preparation, crowded refrigerators, and large holiday meals create ideal conditions for bacterial growth.Whether you’re hosting your first Thanksgiving dinner or you’re a seasoned holiday chef, brushing up on a few key food safety practices can help you keep your loved ones healthy and your celebration memorable for all the right reasons.

ARE WAYMOS SAFER THAN HUMANS DRIVING A CAR?

By Dr. Gerald Goldhaber • October 30, 2025
The race to develop autonomous vehicles (AVs) has reached a pivotal moment. Alphabet-owned Waymo, widely regarded as the frontrunner in the field, has rolled out fully driverless taxis in Phoenix, San Francisco, and Los Angeles, with plans to expand to additional cities. But as more Waymo vehicles hit public roads without human drivers, the question looms large: Are they truly safer than the people they’re replacing behind the wheel?

TACKLING SAFETY: FOOTBALL, CTE, AND WHAT ACTUALLY MAKES THE GAME SAFER

By Dr. Gerald Goldhaber • October 13, 2025
We are now in the middle of another football season, and the question, as asked every year: Is this sport safe enough for our high school, college, and professional athletes to play? Football has always been a violent sport of collision, glory, and growing concern. Over the last decade, research tying repetitive head impacts to chronic traumatic encephalopathy (CTE) has shaken parents, players, and the game’s governing bodies. The central realities are straightforward but sobering: repeated head impacts — both diagnosed concussions and the many “sub-concussive” blows players take — are linked to later-life brain pathology; helmets and add-ons can lower impact forces, but no helmet or cover has been shown to prevent CTE; and rule and culture changes that reduce the number and severity of head impacts are where the biggest gains lie.

CHAOS AT THE CDC: A THREAT TO AMERICA’S HEALTHCARE SYSTEM

By Dr. Gerald Goldhaber • September 10, 2025
The Centers for Disease Control and Prevention (CDC) has long been viewed as the nation’s front-line defense against disease outbreaks, health emergencies, and public health threats. But today, the agency faces internal turmoil, political interference, and organizational confusion that experts warn could have dangerous consequences for the U.S. healthcare system—and for ordinary Americans.
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