Showing posts with label BPA. Show all posts
Showing posts with label BPA. Show all posts

Wednesday, 1 May 2013

How Americans Became Exposed to Biohazards in the Greatest Uncontrolled Experiment Ever Launched

Truthout


A hidden epidemic is poisoning America. The toxins are in the air we breathe and the water we drink, in the walls of our homes and the furniture within them. We can’t escape it in our cars. It’s in cities and suburbs. It afflicts rich and poor, young and old. And there’s a reason why you’ve never read about it in the newspaper or seen a report on the nightly news: it has no name -- and no antidote. 

The culprit behind this silent killer is lead. And vinyl. And formaldehyde. And asbestos. And Bisphenol A. And polychlorinated biphenyls (PCBs). And thousands more innovations brought to us by the industries that once promised “better living through chemistry,” but instead produced a toxic stew that has made every American a guinea pig and has turned the United States into one grand unnatural experiment.

Today, we are all unwitting subjects in the largest set of drug trials ever. Without our knowledge or consent, we are testing thousands of suspected toxic chemicals and compounds, as well as new substances whose safety is largely unproven and whose effects on human beings are all but unknown. The Centers for Disease Control (CDC) itself has begun monitoring our bodies for 151 potentially dangerous chemicals, detailing the variety of pollutants we store in our bones, muscle, blood, and fat. None of the companies introducing these new chemicals has even bothered to tell us we’re part of their experiment. None of them has asked us to sign consent forms or explained that they have little idea what the long-term side effects of the chemicals they’ve put in our environment -- and so our bodies -- could be. Nor do they have any clue as to what the synergistic effects of combining so many novel chemicals inside a human body in unknown quantities might produce.

How Industrial Toxins Entered the American Home

The story of how Americans became unwitting test subjects began more than a century ago. The key figure was Alice Hamilton, the “mother” of American occupational medicine, who began documenting the way workers in lead paint pigment factories, battery plants, and lead mines were suffering terrible palsies, tremors, convulsions, and deaths after being exposed to lead dust that floated in the air, coating their workbenches and clothes.

Soon thereafter, children exposed to lead paint and lead dust in their homes were also identified as victims of this deadly neurotoxin. Many went into convulsions and comas after crawling on floors where lead dust from paint had settled, or from touching lead-painted toys, or teething on lead-painted cribs, windowsills, furniture, and woodwork.

Instead of leveling with the public, the lead industry through its trade group, the Lead Industries Association, began a six-decade-long campaign to cover-up its product’s dire effects. It challenged doctors who reported lead-poisoned children to health departments, distracted the public through advertisements that claimed lead was “safe” to use, and fought regulation of the industry by local government, all in the service of profiting from putting a poison in paint, gasoline, plumbing fixtures, and even toys, baseballs, and fishing gear. 

As Joe Camel would be for tobacco, so the little Dutch Boy of the National Lead Company became an iconic marketing tool for Dutch Boy Lead Paint, priming Americans to invite a dangerous product into their children’s playrooms, nurseries, and lives. The company also launched a huge advertising campaign that linked lead to health, rather than danger. It even produced coloring books for children, encouraging them to paint their rooms and furniture using lead-based paint.

Only after thousands of children were poisoned and, in the 1960s, activist groups like the Young Lords and the Black Panthers began to use lead poisoning as a symbol of racial and class oppression did public health professionals and the federal government begin to rein in companies like the Sherwin-Williams paint company and the Ethyl Corporation, which produced tetraethyl lead, the lead-additive in gasoline. In 1971, Congress passed the Lead Paint Poisoning Prevention Act that limited lead in paint used for public housing. In 1978, the Consumer Products Safety Commission finally banned lead in all paints sold for consumer use. During the 1980s, the Environmental Protection Agency issued rules that led to the elimination of leaded gasoline by 1995 (though it still remains in aviation fuel).

The CDC estimates that in at least 4 million households in the U.S. today children are still exposed to dangerous amounts of lead from old paint that produces dust every time a nail is driven into a wall to hang a picture, a new electric socket is installed, or a family renovates its kitchen. It estimates that more than 500,000 children ages one to five have “elevated” levels of lead in their blood. (No level is considered safe for children.) Studies have linked lost IQ points, attention deficit disorders, behavioral problems, dyslexia, and even possibly high incarceration rates to tiny amounts of lead in children’s bodies.

Unfortunately, when it came to the creation of America’s chemical soup, the lead industry was hardly alone. Asbestos is another classic example of an industrial toxin that found its way into people’s homes and bodies. For decades, insulation workers, brake mechanics, construction workers, and a host of others in hundreds of trades fell victim to the disabling and deadly lung diseases of asbestosis or to lung cancer and the fatal cancer called mesothelioma when they breathed in dust produced during the installation of boilers, the insulation of pipes, the fixing of cars that used asbestos brake linings, or the spraying of asbestos on girders. Once again, the industry knew its product’s dangers early and worked assiduously to cover them up.

Despite growing medical knowledge about its effects (and increasing industry attempts to downplay or suppress that knowledge), asbestos was soon introduced to the American home and incorporated into products ranging from insulation for boilers and piping in basements to floor tiles and joint compounds. It was used to make sheetrock walls, roof shingles, ironing boards, oven gloves, and hot plates. Soon an occupational hazard was transformed into a threat to all consumers.

Today, however, these devastating industrial-turned-domestic toxins, which destroyed the health and sometimes took the lives of hundreds of thousands, seem almost quaint when compared to the brew of potential or actual toxins we’re regularly ingesting in the air we breathe, the water we drink, and the food we eat. 

Of special concern are a variety of chlorinated hydrocarbons, including DDT and other pesticides that were once spread freely nationwide, and despite being banned decades ago, have accumulated in the bones, brains, and fatty tissue of virtually all of us. Their close chemical carcinogenic cousins, polychlorinated biphenyls (PCBs), were found in innumerable household and consumer products -- like carbonless copy paper, adhesives, paints, and electrical equipment – from the 1950s through the 1970s. We’re still paying the price for that industrial binge today, as these odorless, tasteless compounds have become permanent pollutants in the natural environment and, as a result, in all of us.

The Largest Uncontrolled Experiment in History

While old houses with lead paint and asbestos shingles pose risks, potentially more frightening chemicals are lurking in new construction going on in the latest mini-housing boom across America. Our homes are now increasingly made out of lightweight fibers and reinforced synthetic materials whose effects on human health have never been adequately studied individually, let alone in the combinations we’re all subjected to today. 

Formaldehyde, a colorless chemical used in mortuaries as a preservative, can also be found as a fungicide, germicide, and disinfectant in, for example, plywood, particle board, hardwood paneling, and the “medium density fiberboard” commonly used for the fronts of drawers and cabinets or the tops of furniture. As the material ages, it evaporates into the home as a known cancer-producing vapor, which slowly accumulates in our bodies. The National Cancer Institute at the National Institutes of Health suggests that homeowners “purchasing pressed-wood products, including building material, cabinetry, and furniture... should ask about the formaldehyde content of these products.”

What’s inside your new walls might be even more dangerous. While the flame retardants commonly used in sofas, chairs, carpets, love seats, curtains, baby products, and even TVs, sounded like a good idea when widely introduced in the 1970s, they turn out to pose hidden dangers that we’re only now beginning to grasp. Researchers have, for instance, linked one of the most common flame retardants, polybrominated diphenyl ethers, to a wide variety of potentially undesirable health effects including thyroid disruption, memory and learning problems, delayed mental and physical development, lower IQ, and the early onset of puberty.

Other flame retardants like Tris (1,3-dichloro-2-propyl) phosphate have been linked to cancer. As the CDC has documented in an ongoing study of the accumulation of hazardous materials in our bodies, flame retardants can now be found in the blood of “nearly all” of us. 

Nor are these particular chemicals anomalies. Lurking in the cabinet under the kitchen sink, for instance, are window cleaners and spot removers that contain known or suspected cancer-causing agents. The same can be said of cosmetics in your makeup case or of your plastic water bottle or microwavable food containers. Most recently, Bisphenol A (BPA), the synthetic chemical used in a variety of plastic consumer products, including some baby bottles, epoxy cements, the lining of tuna fish cans, and even credit card receipts, has been singled out as another everyday toxin increasingly found inside all of us. 

Recent studies indicate that its effects are as varied as they are distressing. As Sarah Vogel of the Environmental Defense Fund has written, “New research on very-low-dose exposure to BPA suggests an association with adverse health effects, including breast and prostate cancer, obesity, neurobehavioral problems, and reproductive abnormalities.” 

Teflon, or perfluorooctanoic acid, the heat-resistant, non-stick coating that has been sold to us as indispensable for pots and pans, is yet another in the list of substances that may be poisoning us, almost unnoticed. In addition to allowing fried eggs to slide right onto our plates, Teflon is in all of us, according to the Science Advisory Board of the Environmental Protection Agency, and “likely to be carcinogenic in humans.”

These synthetic materials are just a few of the thousands now firmly embedded in our lives and our bodies. Most have been deployed in our world and put in our air, water, homes, and fields without being studied at all for potential health risks, nor has much attention been given to how they interact in the environments in which we live, let alone our bodies. The groups that produce these miracle substances -- like the petrochemical, plastics, and rubber industries, including major companies like Exxon, Dow, and Monsanto -- argue that, until we can definitively prove the chemical products slowly leaching into our bodies are dangerous, we have no “right,” and they have no obligation, to remove them from our homes and workplaces. The idea that they should prove their products safe before exposing the entire population to them seems to be a foreign concept.

In the 1920s, the oil industry made the same argument about lead as an additive in gasoline, even though it was already known that it was a dangerous toxin for workers. Spokesman for companies like General Motors insisted that it was a “gift of God,” irreplaceable and essential for industrial progress and modern living, just as the lead industry argued for decades that lead was “essential” to produce good paint that would protect our homes.

Like the oil, lead, and tobacco industries of the twentieth century, the chemical industry, through the American Chemistry Council and public relations firms like Hill & Knowlton, is fighting tooth and nail to stop regulation and inhibit legislation that would force it to test chemicals before putting them in the environment. In the meantime, Americans remain the human guinea pigs in advanced trials of hundreds if not thousands of commonly used, largely untested chemicals. There can be no doubt that this is the largest uncontrolled experiment in history. 

To begin to bring it under control would undoubtedly involve major grassroots efforts to push back against the offending corporations, courageous politicians, billions of dollars, and top-flight researchers. But before any serious steps are likely to be taken, before we even name this epidemic, we need to wake up to its existence. 

A toxic dump used to be a superfund site or a nuclear waste disposal site. Increasingly, however, we -- each and every one of us -- are toxic dumps and for us there’s no superfund around, no disposal plan in sight. In the meantime, we’re walking, talking biohazards and we don’t even know it.To stay on top of important articles like these, sign up to receive the latest updates from TomDispatch.com here

Saturday, 5 May 2012

How chemicals affect us

By Nicholas D. Kristof
The New York Times

Scientists are observing with increasing alarm that some very common hormone-mimicking chemicals can have grotesque effects. 

A widely used herbicide acts as a female hormone and feminizes male animals in the wild. Thus male frogs can have female organs, and some male fish actually produce eggs. In a Florida lake contaminated by these chemicals, male alligators have tiny penises.

These days there is also growing evidence linking this class of chemicals to problems in humans. These include breast cancer, infertility, low sperm counts, genital deformities, early menstruation and even diabetes and obesity.

Philip Landrigan, a professor of pediatrics at Mount Sinai School of Medicine, says that a congenital defect called hypospadias — a misplacement of the urethra — is now twice as common among newborn boys as it used to be. He suspects endocrine disruptors, so called because they can wreak havoc with the endocrine system that governs hormones.

Endocrine disruptors are everywhere. They’re in thermal receipts that come out of gas pumps and A.T.M.’s. They’re in canned foods, cosmetics, plastics and food packaging. Test your blood or urine, and you’ll surely find them there, as well as in human breast milk and in cord blood of newborn babies.

In this campaign year, we are bound to hear endless complaints about excessive government regulation. But here’s an area where scientists are increasingly critical of our government for its failure to tackle Big Chem and regulate endocrine disruptors adequately.

Last month, the Endocrine Society, the leading association of hormone experts, scolded the Food and Drug Administration for its failure to ban bisphenol-A, a common endocrine disruptor known as BPA, from food packaging. Last year, eight medical organizations representing genetics, gynecology, urology and other fields made a joint call in Science magazine for tighter regulation of endocrine disruptors.

Shouldn’t our government be as vigilant about threats in our grocery stores as in the mountains of Afghanistan?

Researchers warn that endocrine disruptors can trigger hormonal changes in the body that may not show up for decades. One called DES, a synthetic form of estrogen, was once routinely given to pregnant women to prevent miscarriage or morning sickness, and it did little harm to the women themselves. But it turned out to cause vaginal cancer and breast cancer decades later in their daughters, so it is now banned.

Scientists have long known the tiniest variations in hormone levels influence fetal development. For example, a female twin is very slightly masculinized if the other twin is a male, because she is exposed to some of his hormones. Studies have found that these female twins, on average, end up slightly more aggressive and sensation-seeking as adults but have lower rates of eating disorders.

Now experts worry that endocrine disruptors have similar effects, acting as hormones and swamping the delicate balance for fetuses in particular. The latest initiative by scholars is a landmark 78-page analysis to be published next month in Endocrine Reviews, the leading publication in the field.

“Fundamental changes in chemical testing and safety determination are needed to protect human health,” the analysis declares. Linda S. Birnbaum, the nation’s chief environmental scientist and toxicologist, endorsed the findings.

The article was written by a 12-member panel that spent three years reviewing the evidence. It concluded that the nation’s safety system for endocrine disruptors is broken.

“For several well-studied endocrine disruptors, I think it is fair to say that we have enough data to conclude that these chemicals are not safe for human populations,” said Laura Vandenberg, a Tufts University developmental biologist who was the lead writer for the panel.

Worrying new research on the long-term effects of these chemicals is constantly being published. One study found that pregnant women who have higher levels of a common endocrine disruptor, PFOA, are three times as likely to have daughters who grow up to be overweight. Yet PFOA is unavoidable. It is in everything from microwave popcorn bags to carpet-cleaning solutions.

Big Chem says all this is sensationalist science. So far, it has blocked strict regulation in the United States, even as Europe and Canada have adopted tighter controls on endocrine disruptors.

Yes, there are uncertainties. But the scientists who know endocrine disruptors best overwhelmingly are already taking steps to protect their families. John Peterson Myers, chief scientist at Environmental Health Sciences and a co-author of the new analysis, said that his family had stopped buying canned food.

“We don’t microwave in plastic,” he added. “We don’t use pesticides in our house. I refuse receipts whenever I can. My default request at the A.T.M., known to my bank, is ‘no receipt.’ I never ask for a receipt from a gas station.”

I’m taking my cue from the experts, and I wish the Obama administration would as well.


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Wednesday, 21 December 2011

Secret sources of BPA

So you've thrown away the can opener, stopped eating foods that come in plastic packages, and use only BPA-free containers at home. 

Believe it or not, you could STILL have super-high levels of this endocrine-disrupting chemical -- because it's in positively everything, up to and including the newspaper you read this morning. 

One more reason to go online for your news! 

New tests find that common paper products contain up to 1 MILLION times the BPA of food containers -- with the highest levels found in newspapers and paper tickets. 

You might think this isn't worth worrying about since you don't eat paper -- but BPA can actually enter the body through your skin. One study last year found that 30 percent of the BPA from paper receipts remains on the skin two hours after exposure -- and you can't even wash it off. 

Because those same BPA-laced receipts are then tossed in with the recycling, this chemical is now found in just about every product made from recycled paper: business cards, napkins, paper food wrappers and toilet paper. 

Throw in all the sources you already know about -- especially plastic food containers and canned goods -- and you could be exposed at every waking moment... from your morning newspaper to the can of beer at the end of the day.

Stop waiting for the government to act on this one -- if all these industries insist on using BPA, insist on buying other products instead. Hit 'em in the wallet hard enough, and eventually they'll get the message... or they'll be out of business. 

Either outcome is acceptable to me. 

Showing my "can-don't" attitude, 

William Campbell Douglass II, M.D.

Wednesday, 27 April 2011

How to get rid of BPA for good

By WC Douglass, M.D.

Wish you could just flush all the BPA right out of your body?

Too bad -- this hormone-like chemical is in you, right now, and there's not much you can do about it: A new study finds you can completely cut out all foods from BPA-laced containers and STILL have plenty of this junk left over days later.

Thank your local chemicals industry lobbyist for that.

Researchers recruited five families from the San Francisco Bay Area that regularly ate and drank processed and canned foods, frozen dinners, and meals microwaved in plastic containers -- all top sources of BPA exposure.

Each family had two adults (male and female -- an important distinction in the Bay Area) and two children between the ages of 3 and 11.

Then, researchers took urine samples for two days as the families went about their normal business... and for three more days as the families switched to prepared organic meals made from fresh ingredients and stored in glass and BPA-free stainless steel.

By the end of those three days, BPA levels in urine fell by an average of 60 percent, according to the study in Environmental Health Perspectives.

Now, the researchers say this shows how "easy" it is to get rid of BPA -- just switch to fresh food, and your levels will plummet.

But I'm not going to celebrate the fact that 40 percent of this stuff was still floating around in the body days later -- not to mention however much of this stuff remains locked in the body's fat and isn't released in urine anyway.

And once that BPA is inside you, it's free to go to town on your endocrine system, where it tricks your body into thinking you've been given an estrogen boost.

BPA exposure has been linked to diabetes, heart disease, and sex problems -- including sperm so slow and lazy that it's a wonder we manage to make babies anymore.

As the new study shows, getting this stuff out of your body isn't easy -- but if you care about your health even a little bit, get started on your own fresh-food diet now.

Just plan on sticking to it for good instead of three days... or don't even bother at all.

Thursday, 18 November 2010

Teenagers carry 30% more BPA in their bodies than the rest of the population

"Teenagers may carry the highest levels of bisphenol A – about 30 per cent more than the rest of the population, according to the first national survey about the compound conducted by Statistics Canada, but exposure to the estrogen-mimicking chemical is widespread, with detectible levels in 91 per cent of Canadians." Read the full article here.


It has also been detected in the umbilical cord blood of 90% of newborn babies who were tested!

BPA, a product of the petro-chemical industry, can be found in plastics, baby products, CD-s, in the lining of tin cans, in the lining of the paper they print your receipt on and a whole lot of other products such as flame retardants or white dental fillings!  

It is a well known endocrine disruptor, mimicking estrogen therefore can contribute to hormone related cancers such as breast cancer, prostate cancer and testicular cancer; can damage sperm and therefore can contribute to infertility, it may also be one of the causes of early onset of puberty in girls and can have an effect on early brain and neurological development.

Canada is the first country to ban BPA in baby bottles.

The biggest producers of BPA are Bayer, Dow, GE Plastics, Shell and Mitsubishi, Mitsui (Japan), and Wuxi Resin in China, Kesar in India.

I have known about how harmful plastics are for a long time, but from now on, I will stop using plastic bottles to carry my drinking water around and also will stop buying canned food including fish, sauces, vegetables, etc. 

See also:
Watch the documentary, "The Disappearing Male":