‘People who regularly drink from cans and plastic bottles may want to reconsider: A new study shows that a common chemical in the containers can seep into beverages and raise blood pressure within a few hours.
The research raises new concerns about the chemical bisphenol A, or BPA, which is widely found in plastic bottles, plastic packaging and the linings of food and beverage cans. Chronic exposure to BPA, as it is commonly known, has been associated with heart disease, cancer and other health problems. But the new study is among the first to show that a single exposure to the chemical can have a direct and fairly immediate impact on cardiovascular health.
The study found that when people drank soy milk from a can, the levels of BPA in their urine rose dramatically within two hours – and so did their blood pressure. But on days when they drank the same beverage from glass bottles, which don’t use BPA linings, there was no significant change in their BPA levels or blood pressure.’
‘The children of women who are exposed to higher levels of chemicals called phthalates during pregnancy may have lower IQ scores than those whose mothers are exposed to lower levels of those chemicals, according to a new study. Phthalates are common in products such as plastics and the fragrances used in shampoos, air fresheners and dryer sheets.
In the study, researchers followed 328 women in New York City who were either African-American or Dominican-American, as well as their children, who were born between 1998 and 2006. The researchers measured the levels of four types of phthalates in the women’s urine, and looked at the children’s IQ scores at age 7.
They found that the children of mothers with the highest urine levels of two chemicals — called di-n-butyl phthalate (DnBP) and di-isobutyl phthalate (DiBP) — had IQ scores that were about 6 to 8 points lower than those of the children whose mothers had the lowest levels of those chemicals in their urine.’
‘Scientists found intersex fish in three river basins in Pennsylvania, a sign that the water may be tainted with chemicals from human activity.
Male smallmouth bass with female characteristics — namely, immature egg cells in their testes — were discovered in the drainage areas of the Susquehanna, Delaware and Ohio rivers, according to a new study led by the U.S. Geological Survey (USGS).
Such abnormalities are linked to estrogen-mimicking chemicals, which likely got into rivers and streams from agricultural runoff and human waste, the researchers said.’
- Intersex Fish Linked to Human Activity
- Pesticide Turns Male Frogs into Females
- As more male bass switch sex, a strange fish story expands
- Intersex fish: Endocrine disruption in smallmouth bass
- Fish swimming in water tainted with Prozac exhibit ‘antisocial, aggressive and even homicidal behaviour’
- 12 Worst Hormone-Disrupting Chemicals & Their Health Effects
‘Common chemical additives found in sunscreens, food packaging, toothpaste and toys can harm sperm and may affect the fertility of some couples, scientists say.
Tests on 96 ubiquitous and supposedly non-toxic substances found that nearly one third disrupted the way sperm functioned, affecting their swimming and navigational skills, and their ability to fertilise an egg.
The findings – from an experiment conducted on sperm in dishes in the lab – are the first to demonstrate how the chemicals, which are so widespread they are detectable in people’s blood, can impact on sperm and potentially harm reproduction.’
- Sweden to sue EU Commission over delays to rules on chemicals
- BPA May Not Mess with Fertility
- French children exposed to dangerous cocktail of pesticides, campaigners say
- Endocrine disruptors: Harmful or not?
- Pollution ‘changes sex of fish’
- What Are Endocrine Disruptors?
- Endocrine Society Scientific Statement
- WHO: Endocrine Disrupting Chemicals (EDCs)
‘Acording to a study published on Marine Pollution Bulletin plastic ingestions affects around 94% of Cory’s shearwaters on the Catalan coast. Jacob González Solís, from the Department of Animal Biology and the Biodiversity Research Institute (IRBio) of the University of Barcelona (UB), heads the research group that carried out the study. In the case of Yelkouan shearwaters and Balearic shearwaters, conclusions state that 70% of studied birds were affected by plastic ingestion.’
Members of the Cell Biology in Environmental Toxicology group have found evidence that male fish in the estuaries in Basque Country are becoming “feminised” by chemical pollutants in the water. Endocrine disrupting chemicals (EDCs) acting as oestrogens – the primary female sex hormones – are seeping into the waters and causing reproductive and developmental disturbances, according to a report published in the Marine Environmental Research journal.
Immature eggs were found in the testicles of a number of male fish, the scientists from the University of the Basque Country said. The chemicals involved are found in everyday products such as pesticides, contraceptive pills and detergents. They are thought to enter the estuaries after getting through the cleaning systems in water treatment plants or as a result of industrial and farming activities.
Are Any Plastics Safe? Industry Tries to Hide Scary New Evidence on BPA-Free Containers: Interview with Mariah Blake
‘A new exposé by Mother Jones magazine may shock anyone who drinks out of plastic bottles, gives their children plastic sippy cups, eats out of plastic containers, or stores food with plastic wrap. For years, public campaigns have been waged against plastic containing bisphenol-A (BPA), a controversial plastic additive, due to concerns about adverse human health effects caused by the exposure to synthetic estrogen. But a new investigation by Mother Jones reporter Mariah Blake has revealed that chemicals used to replace BPA may be just as dangerous to your health, if not more. Plastic products being advertised as BPA-free — and sold by companies such as Evenflo, Nalgene and Tupperware — are still releasing synthetic estrogen. The Mother Jones piece also reveals how the plastics industry has used a “Big Tobacco-style campaign” to bury the disturbing scientific evidence about the products you use every day. Blake joins us to discuss her findings.’ (Democracy Now!)
Toxic chemicals may be triggering the recent increases in neurodevelopmental disabilities among children — such as autism, attention-deficit hyperactivity disorder, and dyslexia — according to a new study from Harvard School of Public Health (HSPH) and Icahn School of Medicine at Mount Sinai. The researchers say a new global prevention strategy to control the use of these substances is urgently needed. The report [was] published online February 15, 2014 in Lancet Neurology.
“The greatest concern is the large numbers of children who are affected by toxic damage to brain development in the absence of a formal diagnosis. They suffer reduced attention span, delayed development, and poor school performance. Industrial chemicals are now emerging as likely causes,” said Philippe Grandjean, adjunct professor of environmental health at HSPH.
The report follows up on a similar review conducted by the authors in 2006 that identified five industrial chemicals as “developmental neurotoxicants,” or chemicals that can cause brain deficits. The new study offers updated findings about those chemicals and adds information on six newly recognized ones, including manganese, fluoride, chlorpyrifos and DDT (pesticides), tetrachloroethylene (a solvent), and the polybrominated diphenyl ethers (flame retardants).
In a finding that surprised even the researchers conducting the study, it turns out that both rich and poor Americans are walking toxic waste dumps for chemicals like mercury, arsenic, lead, cadmium and bisphenol A, which could be a cause of infertility. And while a buildup of environmental toxins in the body afflicts rich and poor alike, the type of toxin varies by wealth.
EFSA’s scientific experts have provisionally concluded that for all population groups diet is the major source of exposure to bisphenol A (BPA) and exposure is lower than previously estimated by EFSA. BPA is a chemical compound used in food contact materials such as packaging as well as in other consumer products. This is the Authority’s first review of exposure to BPA since 2006 and the first to cover both dietary and non-dietary sources (including thermal paper and environmental sources such as air and dust). As part of a two-stage process of its full risk assessment, EFSA is now seeking feedback on this draft assessment of consumer exposure to BPA. During a later phase, EFSA will publicly consult on the second part of its draft opinion, focussing on its assessment of the potential human health risks of BPA.
New data resulting from an EFSA call for data led to a considerable refinement of exposure estimates compared to 2006. For infants and toddlers (aged 6 months-3 years) average exposure from the diet is estimated to amount to 375 nanograms per kilogram of body weightper day (ng/kg bw/day) whereas for the population above 18 years of age (including women of child-bearing age) the figure is up to 132 ng/kg bw/day. By comparison, these estimates are less than 1% of the current Tolerable Daily Intake (TDI) for BPA (0.05 milligrams/kg bw/day) established by EFSA in 2006.
For all population groups above three years of age thermal paper was the second most important source of BPA after the diet (potentially accounting for up to 15% of total exposure in some population groups).
Among other key findings, scientists found dietary exposure to BPA to be the highest among children aged three to ten (explainable by their higher food consumption on a body weight basis). Canned food and non-canned meat and meat products were identified as major contributors to dietary BPA exposure for all age groups.
BPA (Bisphenol-A) is a chemical used in almost every type of food packaging to extend shelf life, make the product more durable, and withstand extreme temperatures. But it’s also been linked to plenty of health concerns, the newest concerns for pregnant women in particular. In addition to the functionality of BPA, it is also linked to increase risks of cancer, heart disease, and reproductive abnormalities.
The Royal College of Obstetricians and Gynecologists (RCOG) released a paper this week advising pregnant women to avoid BPA when possible. “Pregnant women should reduce the use of foods and beverages in cans and plastic containers to minimize exposure to chemicals including BPA as part of a safety-first approach,” the RCOG said in statement.
by Steve Connor
‘Further evidence has emerged showing that a chemical used widely in plastic packaging and the lining of drinks cans may be harmful to health.
The latest study has shown that bisphenol A (BPA) can affect the way genes work in the brains of laboratory rats, although other scientists have questioned the relevance of the findings to humans.
Researchers found that feeding BPA to pregnant rats was associated with lasting alterations to the “epigenetic” structure of genes in the brain tissue of their offspring, causing possible changes to certain aspects of sex-specific behaviour, such as chasing, sniffing and aggression.
[…] The researchers concluded: “This study provides evidence that low-dose maternal BPA exposure induces long-lasting disruption to epigenetic pathways in the brain of offspring….Importantly, our findings indicate that these BPA-induced changes occur in a sex-specific, brain region-specific and dose-dependent manner.”’