Baby Products Contain Toxic Flame Retardant Chemicals

July 14, 2011 by admin  
Filed under News Stories

July 14th, 2011

Natural News

By: Sally Oaken

Potentially toxic flame retardants, many of them containing compounds known as penta brominated diphenyl ethers, are a common component of many household products containing polyurethane foam.

Originally intended to increase product safety by decreasing fire risk, these compounds have come under increasing scrutiny since the early 1990s due to growing evidence of their damaging health effects.

But even though these chemicals have been banned in 172 countries and 12 U.S. states, they continue to make their way into a wide variety of products found in U.S. households, including toys and upholstered furniture.

In an especially disconcerting study conducted by researchers at Duke University earlier this year, potentially toxic flame retardants were found in 80 percent of samples of polyurethane foam collected from baby products commonly and legally sold in the U.S.. Samples were taken from car seats, high chairs, strollers, nursing pillows and bassinet mattresses.

The results of the study were published in 2011 by the American Chemical Society journal Environmental Science and Technology, and suggest that additional research is warranted “to specifically measure infants exposure to these flame retardants from intimate contact with these products, and to determine if there are any associated health concerns.”

Penta brominated diphenyl ethers, also known PBDEs, are known to bio-accumulate in fatty tissue, breast milk and blood after being inhaled or ingested with food.

The highest and most dangerous concentrations of ingestible and inhalable PBDEs occur in plants that repair and recycle products containing these chemicals, and also in domestic environments, since they persistently show up in household products containing polyurethane foam.

Recent studies show that in the U.S., blood concentrations of PBDEs are much higher in children than in adults. These chemicals are known to have damaging effects on nervous system development and can also disrupt the function of estrogen and thyroid hormones.

When children are exposed to these chemicals early in life, either through inhalation or ingestion with breast milk, their damaging effects have been known to persist into adulthood and may include reduced performance on intelligence tests and behavioral changes like hyperactivity.

The Duke University study suggests that even though the manufacture and distribution of PBDEs is subject to increasing restrictions in the U.S. and Europe, these dangerous flame retardants are still finding their way into our homes and the body tissues of developing infants. It may be wise to check labels carefully and investigate PBDE levels before exposing infants to polyurethane foam products.

Click here for the full report from Natural News

Flame Retardants Found in Butter

February 28, 2011 by admin  
Filed under News Stories

February 28th, 2011

The New York Times

By: Julie Scelfo

For about a decade, scientists have known that most Americans have minute quantities of flame retardants called polybrominated diphenyl ethers, PBDEs, in their bodies, but they were not sure how they got there.

Now a study has found what the authors say is the first documented case of serious PBDE contamination of food in the United States. The authors of the study, in the February issue of the journal Environmental Health Perspectives, bought packages of 10 brands of butter at grocery stores in Dallas and shipped frozen samples to a laboratory in Germany. Sophisticated tests there found trace amounts of PBDEs in each sample, with one having 2,000 times more than the others.

“It’s very startling,” said Dr. Arnold Schecter, professor of environmental and occupational health sciences at the University of Texas School of Public Health at Dallas and an adviser to the Environmental Protection Agency. “It was so much higher than we had ever seen before, and this just stood out like a sore thumb.”

After further testing, the researchers, who include the director of the National Institute of Environmental Health Sciences of the National Institutes of Health, concluded the butter with the highest level of PBDEs was probably contaminated by chemicals in its wrapper.

The Environmental Protection Agency says PBDEs, which are widely used in furniture foam, consumer electronics and small appliances, accumulate in the body and may damage the liver and thyroid and cause neurodevelopmental problems. But Dr. Schecter and other scientists are quick to insist the findings should not cause anyone to stop eating butter. (According to two scientists who were not involved with the study, the average adult would have to consume more than 28 pounds of the highly contaminated butter each day before the quantity would reach levels the Environmental Protection Agency considers risky.)

The research is further evidence of why the Food and Drug Administration “should do a better job of studying how food is contaminated with PBDEs and other chemical pollutants,” Dr. Schecter said. “Just as lead and dioxins and PCBs have been lowered in the environment and in food, government action can reduce the amount of PBDEs in the environment.”

While the recently passed Food Safety Modernization Act gives the agency greater authority over the nation’s food supply, Douglas Karas, an F.D.A. spokesman, said there were no plans to require manufacturers to test specifically for PBDEs.

Click here for the full report from the New York Times

Infertility Can be Caused by Common Flame Retardant

February 3, 2010 by admin  
Filed under News Stories

February 2, 2010

Natural News

By S. L. Baker

So many US women have difficulty becoming pregnant that the fertility industry has become a huge business, raking in between three and five billion dollars a year. Now a new study published in the journal Environmental Health Perspectives raises the possibility that a lot of women who can’t have babies could have flame retardant chemicals to blame — specifically, polybrominated diphenyl ethers (PBDEs), which are commonly found in an alarming number of household consumer products.

In a study involving over 200 women, researchers at the University of California at Berkeley (UC Berkeley) discovered that women with higher blood concentrations of PBDEs took far longer to become pregnant than those with low amounts of the chemicals in their blood. In fact, for every ten-fold increase in blood levels of four PBDE chemicals tested, there was a 30 percent decrease in the odds a woman would conceive a child during a month.

“There have been numerous animal studies that have found a range of health effects from exposure to PBDEs, but very little research has been done in humans. This latest paper is the first to address the impact on human fertility, and the results are surprisingly strong. These findings need to be replicated, but they have important implications for regulators,” the study’s lead author, Kim Harley, said in a statement to the media. Harley is an adjunct assistant professor of maternal and child health and associate director of the Center for Children’s Environmental Health Research at UC Berkeley’s School of Public Health.

PBDEs are a class of organobromine compounds found in foam furniture, electronics, fabrics, carpets, plastics and other common household items. They were commonly added to these and other products as flame retardants after the 1970s when new fire safety standards were implemented in the US.

So how big is the problem of homes contaminated by PBDEs? Unfortunately, it appears to be huge. The chemicals are known to leach out into the environment and accumulate in human fat cells. Previous studies have suggested that 97 percent of U.S. residents have detectable levels of PBDEs in their blood and that the levels in Americans are 20 times higher than in their counterparts in Europe.

The most prevalent form of PBDEs found in the blood of women participating in the UC Berkeley study were from a specific formulation known as a pentaBDE mixture. Both this kind of PBDE and another type, octaBDE, have been banned for use in several states — but they are still widely found in products manufactured before 2004.

The U.S. Environmental Protection Agency (EPA) finally got around to addressing the danger of PBDEs at the end of 2009. Did the agency issue an urgent alarm about products containing the chemicals — even ban them outright to protect consumers? No. Instead, the EPA quietly announced an agreement with three major manufacturers of some forms of PBDEs to phase out production by 2013. Unfortunately, this is clearly too little too late to protect countless Americans from the potential danger of these contaminants.

“Although several types of PBDEs are being phased out in the United States, our exposure to the flame retardants is likely to continue for many years,” said the study’s principal investigator, Brenda Eskenazi, UC Berkeley professor of epidemiology and of maternal and child health at the School of Public Health. “PBDEs are present in many consumer products, and we know they leach out into our homes. In our research, we have found that low-income children in California are exposed to very high levels of PBDEs, and this has us concerned about the next generation of Californians.”

What’s more, the scientists pointed out in the press statement that there’s reason to be concerned about additional chemical contaminants in the immediate future. True, PBDEs are being phased out from consumer products — but they are being replaced with other potentially toxic compounds. “We know even less about the newer flame retardant chemicals that are coming out,” said Dr. Harley. “We just don’t have the human studies yet to show that they are safe.”

Click here for the full report.

Household Chemicals Linked to Reduced Fertility

January 27, 2010 by admin  
Filed under News Stories

January 27, 2010

LA Times

By Shari Roan

Flame-retardant chemicals found in many household consumer products may reduce fertility in women, researchers reported Tuesday. Their study joins several other papers published in the last two years suggesting that the chemicals, polybrominated diphenyl ethers, or PBDEs, affect human health.
PBDEs have been used as flame retardants for four decades and are found in foam furniture, electronics, fabrics, carpets and plastics. The chemicals are being phased out nationwide, and certain PBDEs have been banned for use in California. But they are still found in products made before 2004. Californians may have higher exposures compared with residents of other states because of the state’s strict flammability laws, according to the study authors, from UC Berkeley.
Most of the previous research on the chemicals has been in animals. But a 2008 study linked the chemicals to disrupted thyroid levels in men, and a study published this month tied PBDE exposure in pregnancy to neurodevelopmental delays in young children.
“These are association studies. You can’t show cause and effect,” said Dr. Hugh Taylor, an expert on endocrine-disrupting chemicals at Yale University who was not involved in the new study. “But we have cause-and-effect studies in animals, and we have association studies in humans. I think that is fairly convincing.”
In the study, published Tuesday in the journal Environmental Health Perspectives, researchers measured PBDE levels in blood samples from 223 pregnant women. The women, who were primarily Mexican immigrants living in an agricultural community, were asked to recall how long they had been trying to become pregnant, which was defined as being sexually active without the use of birth control.
Women with the highest concentrations of the chemicals experienced a longer delay before pregnancy. Each tenfold increase in blood concentration of PBDEs was linked to a 30% decrease in the likelihood of becoming pregnant each month.
“It’s a pretty strong effect,” said Kim Harley, the lead author of the study and associate director of the Center for Children’s Environmental Health Research at UC Berkeley’s School of Public Health. “They can all become pregnant, but they all had very different amounts of time it took them to become pregnant.”
Previous studies suggest that 97% of Americans have detectable levels of the substances in their blood. PBDEs are also found in some foods, particularly dairy products and higher-fat meat and fish, but household products are considered a major source of exposure.
“PBDEs have the ability to just leach out of these products into our environment,” Harley said. “We’re thinking the routes are probably ingestion or hand to mouth. But it seems that the larger route of exposure is house dust.”
How the chemicals might impair fertility is unclear, she said.
“One of the strongest associations of PBDEs is with thyroid hormone,” Harley said. “Thyroid hormone does seem to play an important role in fertility. Either too low or too high levels can impair fertility. PBDEs also seem to mimic estrogen. It could be through a hormonal mechanism. But we need more research on that.”
Fertility may be one of the first biological processes affected by chemical exposures, said Taylor, director of reproductive endocrinology and infertility at Yale.
“Fertility is easy to perturb,” he said. “Miscarriage is another thing that may be related to environmental exposures. We also have to ask: What are the effects on the next generation? We know these endocrine-disrupting chemicals can affect the next generation’s fertility. Is it due to the mother’s exposure?”
Last month, the Environmental Protection Agency and the two largest manufacturers of one type of PBDE agreed to phase out the chemical. However, the substances will be in the environment a long time, Harley said. And understanding their effects is important.
“The thing is, they are used in these durable goods that we have in homes,” she said. “Couches, chairs, TVs, carpet padding. These are things that will stay in our house for years to come.”

Click here for the full report.