Kaiser Health News
Tire Toxicity Faces Fresh Scrutiny After Salmon Die-Offs
Jim Robbins
Wed, 24 Apr 2024 09:00:00 +0000
For decades, concerns about automobile pollution have focused on what comes out of the tailpipe. Now, researchers and regulators say, we need to pay more attention to toxic emissions from tires as vehicles roll down the road.
At the top of the list of worries is a chemical called 6PPD, which is added to rubber tires to help them last longer. When tires wear on pavement, 6PPD is released. It reacts with ozone to become a different chemical, 6PPD-q, which can be extremely toxic — so much so that it has been linked to repeated fish kills in Washington state.
The trouble with tires doesn't stop there. Tires are made primarily of natural rubber and synthetic rubber, but they contain hundreds of other ingredients, often including steel and heavy metals such as copper, lead, cadmium, and zinc.
As car tires wear, the rubber disappears in particles, both bits that can be seen with the naked eye and microparticles. Testing by a British company, Emissions Analytics, found that a car's tires emit 1 trillion ultrafine particles per kilometer driven — from 5 to 9 pounds of rubber per internal combustion car per year.
And what's in those particles is a mystery, because tire ingredients are proprietary.
“You've got a chemical cocktail in these tires that no one really understands and is kept highly confidential by the tire manufacturers,” said Nick Molden, CEO of Emissions Analytics. “We struggle to think of another consumer product that is so prevalent in the world and used by virtually everyone, where there is so little known of what is in them.”
Regulators have only begun to address the toxic tire problem, though there has been some action on 6PPD.
The chemical was identified by a team of researchers, led by scientists at Washington State University and the University of Washington, who were trying to determine why coho salmon returning to Seattle-area creeks to spawn were dying in large numbers.
Working for the Washington Stormwater Center, the scientists tested some 2,000 substances to determine which one was causing the die-offs, and in 2020 they announced they'd found the culprit: 6PPD.
The Yurok Tribe in Northern California, along with two other West Coast Native American tribes, have petitioned the Environmental Protection Agency to prohibit the chemical. The EPA said it is considering new rules governing the chemical. “We could not sit idle while 6PPD kills the fish that sustain us,” said Joseph L. James, chairman of the Yurok Tribe, in a statement. “This lethal toxin has no place in any salmon-bearing watershed.”
California has begun taking steps to regulate the chemical, last year classifying tires containing it as a “priority product,” which requires manufacturers to search for and test substitutes.
“6PPD plays a crucial role in the safety of tires on California's roads and, currently, there are no widely available safer alternatives,” said Karl Palmer, a deputy director at the state's Department of Toxic Substances Control. “For this reason, our framework is ideally suited for identifying alternatives to 6PPD that ensure the continued safety of tires on California's roads while protecting California's fish populations and the communities that rely on them.”
The U.S. Tire Manufacturers Association says it has mobilized a consortium of 16 tire manufacturers to carry out an analysis of alternatives. Anne Forristall Luke, USTMA president and CEO, said it “will yield the most effective and exhaustive review possible of whether a safer alternative to 6PPD in tires currently exists.”
Molden, however, said there is a catch. “If they don't investigate, they aren't allowed to sell in the state of California,” he said. “If they investigate and don't find an alternative, they can go on selling. They don't have to find a substitute. And today there is no alternative to 6PPD.”
California is also studying a request by the California Stormwater Quality Association to classify tires containing zinc, a heavy metal, as a priority product, requiring manufacturers to search for an alternative. Zinc is used in the vulcanization process to increase the strength of the rubber.
When it comes to tire particles, though, there hasn't been any action, even as the problem worsens with the proliferation of electric cars. Because of their quicker acceleration and greater torque, electric vehicles wear out tires faster and emit an estimated 20% more tire particles than the average gas-powered car.
A recent study in Southern California found tire and brake emissions in Anaheim accounted for 30% of PM2.5, a small-particulate air pollutant, while exhaust emissions accounted for 19%. Tests by Emissions Analytics have found that tires produce up to 2,000 times as much particle pollution by mass as tailpipes.
These particles end up in water and air and are often ingested. Ultrafine particles, even smaller than PM2.5, are also emitted by tires and can be inhaled and travel directly to the brain. New research suggests tire microparticles should be classified as a pollutant of “high concern.”
In a report issued last year, researchers at Imperial College London said the particles could affect the heart, lungs, and reproductive organs and cause cancer.
People who live or work along roadways, often low-income, are exposed to more of the toxic substances.
Tires are also a major source of microplastics. More than three-quarters of microplastics entering the ocean come from the synthetic rubber in tires, according to a report from the Pew Charitable Trusts and the British company Systemiq.
And there are still a great many unknowns in tire emissions, which can be especially complex to analyze because heat and pressure can transform tire ingredients into other compounds.
One outstanding research question is whether 6PPD-q affects people, and what health problems, if any, it could cause. A recent study published in Environmental Science & Technology Letters found high levels of the chemical in urine samples from a region of South China, with levels highest in pregnant women.
The discovery of 6PPD-q, Molden said, has sparked fresh interest in the health and environmental impacts of tires, and he expects an abundance of new research in the coming years. “The jigsaw pieces are coming together,” he said. “But it's a thousand-piece jigsaw, not a 200-piece jigsaw.”
This article was produced by KFF Health News, which publishes California Healthline, an editorially independent service of the California Health Care Foundation.Â
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.
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By: Jim Robbins
Title: Tire Toxicity Faces Fresh Scrutiny After Salmon Die-Offs
Sourced From: kffhealthnews.org/news/article/tire-toxicity-salmon-die-offs-research-6ppd/
Published Date: Wed, 24 Apr 2024 09:00:00 +0000
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Kaiser Health News
Journalists Delve Into Climate Change, Medicaid ‘Unwinding,’ and the Gap in Mortality Rates
Sat, 04 May 2024 09:00:00 +0000
KFF Health News senior correspondent Samantha Young discussed Medicaid and climate change on KCBS Radio's “On-Demand” podcast on April 29.
- Click here to hear Young on KCBS
- Read Young's “AC, Power Banks, Mini Fridges: Oregon Equips Medicaid Patients for Climate Change“
KFF Health News contributor Andy Miller discussed Medicaid unwinding on WUGA's “The Georgia Health Report” on April 26.
- Click here to hear Miller on “The Georgia Health Report”
- Read Phil Galewitz' “Millions Were Booted From Medicaid. The Insurers That Run It Gained Medicaid Revenue Anyway.“
KFF Health News Nevada correspondent Jazmin Orozco Rodriguez discussed mortality rates in rural America on The Daily Yonder's “The Yonder Report” on April 24.
- Click here to hear Rodriguez on “The Yonder Report”
- Read Rodriguez' “City-Country Mortality Gap Widens Amid Persistent Holes in Rural Health Care Access”
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Title: Journalists Delve Into Climate Change, Medicaid ‘Unwinding,' and the Gap in Mortality Rates
Sourced From: kffhealthnews.org/news/article/journalists-delve-into-climate-change-medicaid-unwinding-and-the-gap-in-mortality-rates/
Published Date: Sat, 04 May 2024 09:00:00 +0000
Did you miss our previous article…
https://www.biloxinewsevents.com/oh-dear-baby-gear-why-are-the-manuals-so-unclear/
Kaiser Health News
Oh, Dear! Baby Gear! Why Are the Manuals So Unclear?
Darius Tahir
Fri, 03 May 2024 09:00:00 +0000
Since becoming a father a few months ago, I've been nursing a grudge against something tiny, seemingly inconsequential, and often discarded: instructional manuals. Parenthood requires a lot of gadgetry to maintain a kid's health and welfare. Those gadgets require puzzling over booklets, decoding inscrutable pictographs, and wondering whether warnings can be safely ignored or are actually disclosing a hazard.
To give an example, my daughter, typically a cooing little marsupial, quickly discovered babyhood's superpower: Infants emerge from the womb with talon-strength fingernails. She wasn't afraid to use them, against either her parents or herself. So we purchased a pistachio-green, hand-held mani-pedi device.
That was the easy part. The difficulty came when we consulted the manual, a palm-sized, two-page document.
The wandlike tool is topped with a whirring disc. One can apparently adjust the speed of its rotation using a sliding toggle on the wand. But the product manual offered confusing advice: “Please do not use round center position grinding,” it said. Instead, “Please use the outer circle position to grinding.” It also proclaimed, “Stay away from children.” In finer print, the manual revealed the potential combination of kids and the device's smaller parts was the reason for concern.
One would hope for more clarity about a doodad that could inadvertently cause pain.
Later, I noticed another warning: “If you do not use this product for a long time, please remove the battery.” Was it dangerous? Or simply an unclear and unhelpful yet innocuous heads-up? We didn't know what to do with this information.
We now notice shoddy instructions everywhere.
One baby carrier insert told us to use the product for infants with “adequate” head, neck, and torso control — a vague phrase. (The manufacturer declined to comment.)
Another manual, this one online and for a car seat — a device that's supposed to protect your kid — informed readers with words and images that a model baby was “properly positioned” relative to the top of the headrest “structure” when more than one inch from the top. Just pixels away, the same model, slumped further down, was deemed improperly positioned: “The headrest should not be more than 1” from the top of her head,” it said, in tension with its earlier instructions. Which was it, more than one inch or not? So we fiddle and hope for the best.
I acknowledge this sounds like new-parent paranoia. But we're not entirely crazy: Manuals are important, and ones for baby products “are notoriously difficult to write,” Paul Ballard, the managing director of 3di Information Solutions, a technical writing firm, told me.
Deborah Girasek, a professor of social and behavior sciences at the Uniformed Services University of the Health Sciences, told me that for decades, for the young and middle-aged alike, unintentional injury has been the leading cause of death. That's drownings, fires, suffocation, car crashes. The USU is a federal service academy training medical students destined for the armed services or other parts of the government.
Some of these deaths are caused by lack of effective communication — that is, the failure of instruction about how to avoid injury.
And these problems stretch from cheap devices to the most sophisticated products of research and development.
It's a shortcoming that's prompted several regulatory agencies charged with keeping Americans healthy, including the Consumer Product Safety Commission, the Food and Drug Administration, and the National Highway Traffic Safety Administration, to prod companies into providing more helpful instructions.
By some lights, they've had success. NHTSA, for example, has employees who actually read manuals. The agency says about three-quarters of car seats' manuals rate four or five stars out of five, up from 38% in 2008. Then again, our car seat's has a five-star rating. But it turns out the agency doesn't evaluate online material.
Medical product manuals sometimes don't fare too well either. Raj Ratwani, director of MedStar Health's Human Factors program, told me that, for a class he teaches to nurses and doctors, he prompted students to evaluate the instructions for covid-19 tests. The results were poor. One time, instructions detailed two swabs. The kit had only one.
Technical writers I spoke with identified this kind of mistake as a symptom of cost cutting. Maybe a company creates one manual meant to cover a range of products. Maybe it puts together the manual at the last moment. Maybe it farms out the task to marketers, who don't necessarily think about how manuals need to evolve as the products do.
For some of these cost-cutting tactics, “the motivation for doing it can be cynical,” Ballard said.
Who knows.
Some corners of the technical writing world are gloomy. People worry their jobs aren't secure, that they're going to be replaced by someone overseas or artificial intelligence. Indeed, multiple people I spoke with said they'd heard about generative AI experiments in this area.
Even before AI has had its effect, the job market has weighed in. According to the federal government, the number of technical writers fell by a third from 2001, its recent peak, to 2023.
One solution for people like us — frustrated by inscrutable instructions — is to turn to another uncharted world: social media. YouTube, for instance, has helped us figure out a lot of the baby gadgets we have acquired. But those videos also are part of a wild West, where creators offer helpful tips on baby products then refer us to their other productions (read: ads) touting things like weight loss services. Everyone's got to make a living, of course; but I'd rather they not make a buck off viewers' postpartum anxiety.
It reminds me of an old insight that became a digital-age cliché: Information wants to be free. Everyone forgets the second half: Information also wants to be expensive. It's cheap to share information once produced, but producing that information is costly — and a process that can't easily or cheaply be replaced. Someone must pay. Instruction manuals are just another example.
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By: Darius Tahir
Title: Oh, Dear! Baby Gear! Why Are the Manuals So Unclear?
Sourced From: kffhealthnews.org/news/article/baby-product-instruction-manuals-confusing-technical-writing/
Published Date: Fri, 03 May 2024 09:00:00 +0000
Kaiser Health News
California Floats Extending Health Insurance Subsidies to All Adult Immigrants
Jasmine Aguilera, El TÃmpano
Fri, 03 May 2024 09:00:00 +0000
Marisol Pantoja Toribio found a lump in her breast in early January. Uninsured and living in California without legal status and without her family, the usually happy-go-lucky 43-year-old quickly realized how limited her options were.
“I said, ‘What am I going to do?'” she said in Spanish, quickly getting emotional. She immediately worried she might have cancer. “I went back and forth — I have [cancer], I don't have it, I have it, I don't have it.” And if she was sick, she added, she wouldn't be able to work or pay her rent. Without health insurance, Pantoja Toribio couldn't afford to find out if she had a serious condition.
Beginning this year, Medi-Cal, California's Medicaid program, expanded to include immigrants lacking legal residency, timing that could have worked out perfectly for Pantoja Toribio, who has lived in the Bay Area city of Brentwood for three years. But her application for Medi-Cal was quickly rejected: As a farmworker earning $16 an hour, her annual income of roughly $24,000 was too high to qualify for the program.
California is the first state to expand Medicaid to all qualifying adults regardless of immigration status, a move celebrated by health advocates and political leaders across the state. But many immigrants without permanent legal status, especially those who live in parts of California where the cost of living is highest, earn slightly too much money to qualify for Medi-Cal.
The state is footing the bill for the Medi-Cal expansion, but federal law bars those it calls “undocumented” from receiving insurance subsidies or other benefits from the Affordable Care Act, leaving many employed but without viable health insurance options.
Now, the same health advocates who fought for the Medi-Cal expansion say the next step in achieving health equity is expanding Covered California, the state's ACA marketplace, to all immigrant adults by passing AB 4.
“There are people in this state who work and are the backbone of so many sectors of our economy and contribute their labor and even taxes … but they are locked out of our social safety net,” said Sarah Dar, policy director at the California Immigrant Policy Center, one of two organizations sponsoring the bill, dubbed #Health4All.
To qualify for Medi-Cal, an individual cannot earn more than 138% of the federal poverty level, which currently amounts to nearly $21,000 a year for a single person. A family of three would need to earn less than $35,632 a year.
For people above those thresholds, the Covered California marketplace offers various health plans, often with federal and state subsidies, yielding premiums as low as $10 a month. The hope is to create what advocates call a “mirror marketplace” on the Covered California website so that immigrants regardless of status can be offered the same health plans that would be subsidized only by the state.
Despite a Democratic supermajority in the legislature, the bill might struggle to pass, with the state facing a projected budget deficit for next year of anywhere from $38 billion to $73 billion. Gov. Gavin Newsom and legislative leaders announced a $17 billion package to start reducing the gap, but significant spending cuts appear inevitable.
It's not clear how much it would cost to extend Covered California to all immigrants, according to Assembly member Joaquin Arambula, the Fresno Democrat who introduced the bill.
The immigrant policy center estimates that setting up the marketplace would cost at least $15 million. If the bill passes, sponsors would then need to secure funding for the subsidies, which could run into the billions of dollars annually.
“It is a tough time to be asking for new expenditures,” Dar said. “The mirror marketplace startup cost is a relatively very low number. So we're hopeful that it's still within the realm of possibility.”
Arambula said he's optimistic the state will continue to lead in improving access to health care for immigrants who lack legal residency.
“I believe we will continue to stand up, as we are working to make this a California for all,” he said.
The bill passed the Assembly last July on a 64-9 vote and now awaits action by the Senate Appropriations Committee, Arambula's office said.
An estimated 520,000 people in California would qualify for a Covered California plan if not for their lack of legal status, according to the labor research center at the University of California-Berkeley. Pantoja Toribio, who emigrated alone from Mexico after leaving an abusive relationship, said she was lucky. She learned about alternative health care options when she made her weekly visit to a food pantry at Hijas del Campo, a Contra Costa County farmworker advocacy organization, where they told her she might qualify for a plan for low-income people through Kaiser Permanente.
Pantoja Toribio applied just before open enrollment closed at the end of January. Through the plan, she learned that the lump in her breast was not cancerous.
“God heard me,” she said. “Thank God.”
This article was produced by KFF Health News, which publishes California Healthline, an editorially independent service of the California Health Care Foundation.Â
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By: Jasmine Aguilera, El TÃmpano
Title: California Floats Extending Health Insurance Subsidies to All Adult Immigrants
Sourced From: kffhealthnews.org/news/article/california-legislation-medicaid-subsidies-all-adult-immigrants/
Published Date: Fri, 03 May 2024 09:00:00 +0000
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