Wednesday, May 27, 2015

Bad air causes rise in allergies, study shows

Allergies and asthma are on the rise - and researchers
blame pollution, second-hand smoke and other factors.
Pollution among the factors causing more allergies among children - and figures are set to rise

Three-quarters of parents with at least one child under the age of three report that the child has allergies, a study shows - and researchers warn the figure will grow.

Some 58 per cent of the youngsters had eczema or a skin allergy, 32 per cent had rhinitis or hay fever and 25 per cent airway allergies such as asthma.

Some of the children suffered more than one type of allergy.

The findings of the survey by the Allergy Association, commissioned by the University of Hong Kong, were based on interviews with 511 parents.

Only 30 per cent of the children were believed to have inherited the condition from their parents - meaning the rest might be down to factors such as pollution, exposure to second-hand smoke, Cesarean delivery or not being breastfed exclusively in their first six months.

"We have seen many more allergy cases in this generation than the last," said Dr Marco Ho Hok-kung, chairman of the association.

"I believe the number is only going to rise in the future, in keeping with the global trend. It is vital to understand the risk of allergies and take preventive measures."

Allergies could affect the long-term growth of infants, said Ho. Some research suggests that infants who develop an allergy before the age of two have a 24 per cent increased risk of developing emotional problems later in life.

Families with children suffering from allergies often have to devote a lot of effort to preventing exposure to allergens such as peanuts, milk or seafood in meals and dust mites at home.

According to the World Health Organisation, 40 to 50 per cent of children across the globe are bothered by one or more types of allergy.

Ho said if either parent had an allergy, there was a 30 per cent chance of their child inheriting it. This increased to 50 per cent if both parents were sufferers. And in general, every child has 5 to 15 per cent chance of developing an allergy even if neither parent has the condition.

Paediatrician Dr Alfred Tam Yat-cheung said risks could be attributed to environmental factors such as pollution and exposure to second-hand smoke. They could be reduced by giving birth naturally and feeding the babies only breast milk in their first six months, he said.

Source: South China Morning Post

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Wednesday, May 20, 2015

Women use more than 160 chemicals each day, group warns

Authorities should review five chemicals commonly used in
personal care products, two senators say.
American women put an average of 168 chemicals on their bodies each day, according to a nonprofit group, but two senators say federal regulations on personal care products have barely changed since the 1930s.

Senators Dianne Feinstein, D-California, and Susan Collins, R-Maine, introduced an amendment to the federal Food, Drug and Cosmetic Act that would give the Food and Drug Administration more power and oversight to regulate the chemicals men and women slather on their bodies every day.

They're calling it the Personal Care Products Safety Act.

"From shampoo to lotion, the use of personal care products is widespread, however, there are very few protections in place to ensure their safety," Feinstein said in a statement.

The 98-page bill includes a system of registering personal care companies, their products and their ingredients, and it would require the FDA to review five chemicals that appear generally in personal care products each year to evaluate their safety.

The first set of chemicals will likely be diazolidinyl urea, lead acetate, methylene glycol/formaldehyde, propyl paraben, quaternium-15, according to Feinstein’s office.

The senators worked with the Environmental Working Group, a nonprofit consumer health advocacy group that started the Skin Deep database about a decade ago.

Personal care products are not
regulated to ensure safety: Experts
The Skin Deep database allows consumers to look up personal care products to learn what chemicals they contain, and whether those chemicals are associated with any health risks.

"These are basic tools that should have been granted to the FDA decades ago, but are only now being provided in the Feinstein-Collins bill," said Scott Faber, Environmental Working Group's vice president of government affairs.

"Cosmetics are sort of the last unregulated area of consumer products law. I can't overstate how little law is now on the books. The FDA virtually has no power to regulate the products we use everyday."

According to the Environmental Working Group, women use an average of 12 products a day, containing 168 different chemicals.

Men use fewer products, but still put 85 chemicals on their bodies. Teens on average use 17 personal care products a day, according to the group, which tested 20 teens' blood and urine seven years ago to find out which chemicals from these products were ending up in their bodies.

They said they found 16 hormone-altering chemicals, including parabens and phthalates.

"Many if not most of these chemicals are probably safe," Faber said. "We can't know for sure because they haven't been subject to any kind of review by a third party."

Faber said attempts to give the FDA more authority over cosmetics date back to the Eisenhower administration, but they were unsuccessful.

This time, industry leaders including Johnson and Johnson, Revlon and Personal Care Products Council, the industry trade group, have come out to say they support the bill.

"While we believe our products are the safest category that FDA regulates, we also believe well-crafted, science-based reforms will enhance industry's ability to innovate and further strengthen consumer confidence in the products they trust and use every day," the Personal Care Products Council said in a statement.

"The current patchwork regulatory approach with varying state bills does not achieve this goal."

The FDA said it cannot comment on proposed legislation.

Source: ABC News

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Monday, May 04, 2015

Common solvents disrupt hormone systems, scientists warn

Benzene, xylene and other solvents contaminate the home

Low-level, everyday exposures to dangerous
chemicals are linked to many health issues,
scientists say.
Four chemicals present both inside and outside homes might disrupt our endocrine systems at levels considered safe by the U.S. Environmental Protection Agency, according to an analysis.

The chemicals – benzene, toluene, ethylbenzene and xylene – are ubiquitous: in the air outside and in many products inside homes and businesses. They have been linked to reproductive, respiratory and heart problems, as well as smaller babies.

Now researchers from The Endocrine Disruption Exchange (TEDX) and the University of Colorado, Boulder, say that such health impacts may be due to the chemicals’ ability to interfere with people’s hormones at low exposure levels.

“There’s evidence of connection between the low level, everyday exposures and things like asthma, reduced fetal growth,” said Ashley Bolden, a research associate at TEDX and lead author of the study.

“And for a lot of the health effects found, we think it’s disrupted endocrine-signaling pathways involved in these outcomes.”

Bolden and colleagues – including scientist, activist, author and TEDX founder Theo Colborn who passed away last December – pored over more than 40 studies on the health impacts of low exposure to the chemicals.

They looked at exposures lower than the U.S. Environmental Protection Agency’s reference concentrations for the chemicals, which is the agency’s estimated inhalation exposure level that is not likely to cause health impacts during a person’s lifetime.

Many of the health problems – asthma, low birth weights, cardiovascular, disease, preterm births, abnormal sperm – can be rooted in early disruptions to the developing endocrine system, Bolden said.

The analysis doesn’t prove that exposure to low levels of the chemicals disrupt hormones. However, any potential problems with developing hormone systems are cause for concern.

“Hormones are how the body communicates with itself to get work done. Interrupt that, you can expect all sorts of negative health outcomes,” said Susan Nagel an associate professor at the University of Missouri-Columbia Obstetrics, Gynecology and Women's Health School of Medicine who was not involved in the study.

Cathy Milbourn, a spokesperson for the EPA, said in an emailed response that the agency will "review the study and incorporate the findings into our work as appropriate."

The "EPA is screening thousands of chemicals for potential risk of endocrine disruption," she said. "As potential risk of endocrine disruption is identified, these chemicals are assessed further."

Chemicals found in many consumer products

The four chemicals are retrieved from the wellheads during crude oil and natural gas extraction and, after refining, are used as gasoline additives and in a wide variety of consumer products such as adhesives, detergents, degreasers, dyes, pesticides, polishes and solvents.

Ethylbenzene is one of the top ten chemicals used in children’s products such as toys and playground equipment, according to a 2013 EPA report.

Toluene is in the top ten chemicals used in consumer products such as fuels and paints, the report found.

All four get into indoor and outdoor air via fossil fuel burning, vehicle emissions and by volatizing from products. Bolden said studies that measure the air in and around homes and businesses find the chemicals 90 to 95 percent of the time.

Katie Brown, spokeswoman for Energy in Depth, a program of the Independent Petroleum Association of America, said in an email that the study suggests “products deemed safe by the U.S. Consumer Product Safety Commission are more dangerous than oil and gas development.

“Contrary to their intentions, what this report actually shows is that people should be no more afraid of oil and gas development than products in their home,” she said.

The Consumer Specialty Products Association, a trade group that represents companies that manufacturer consumer goods including cleaning products, pesticides, polishes, would not comment on the study but a spokesperson said that member groups typically don’t use the chemicals mentioned.

In several of the monitoring studies Bolden and colleagues examined, levels of the chemicals were higher in indoor air than in outdoor air, suggesting that people might be exposed within their homes.

“A lot of time indoor air is poorly circulated,” Bolden said.

Nagel cited a “huge need” to look at the impact of exposure to ambient levels of these chemicals. The study highlights “a whole lot we don’t know” about how these compounds may impact humans, she said.

Using human tissue cells, Nagel’s lab has previously shown that the chemicals can disrupt the androgen and estrogen hormones.

The authors said regulators should give air contaminants the same attention they’ve given greenhouse gas emissions recently.

“Tremendous efforts have led to the development of successful regulations focused on controlling greenhouse gases in an attempt to reduce global temperatures,” the authors wrote in the study published in Environmental Science and Technology journal.

“Similar efforts need to be directed toward compounds that cause poor air quality both indoors and outdoors.”

Source: Environmental Health News

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