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Tag: EDCs

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New Study Highlights Reproductive Risks from Fracking Chemicals

Could pollution from unconventional oil and gas drilling cause reproductive problems? Scientists at the University of Missouri are trying to answer this question. A study published yesterday in the journal Environmental Health Perspectives assessed the research so far on endocrine disrupting compounds (EDCs) in chemicals used for hydraulic fracturing. The study presented research linking fracking to EDCs, and the authors recommended an increased focus on these compounds in assessing health risks from fracking pollution.

Endocrine disrupting compounds are a class of chemicals that can alter the delicately balanced endocrine system of the human body, interfering with processes involved in development and reproduction. Some EDCs prevent the endocrine system from carrying out normal functions, while others can mimic hormones naturally found in the body and cause increased endocrine activity. As the study authors note, EDCs are of particular concern because they can have effects at very low concentrations, especially during the early stages of development. Small doses of EDCs can cause drastic health changes, some of which can persist across generations.

One section of the study looked at the endocrine disrupting properties of individual chemicals in fracking fluid. Unfortunately, the identities of many of the approximately 1000 chemicals used in the fracking process are kept under wraps by industry, limiting the extent to which scientists can test any of the health effects they present. Of the chemicals the researchers were able to test, many had endocrine-disrupting properties. When the scientists assessed water samples from areas where drilling-related spills had occurred, they also found elevated endocrine disrupting activity. Chemicals involved in fracking processes are associated with reproductive effects, adverse pregnancy outcomes, and cancer, and several epidemiological studies cited in the paper found elevated risks for these problems in drilling-dense areas.

The study also focused on identifying gaps in our knowledge of EDCs in fracking chemicals. While our understanding of the impacts of individual chemicals is growing, we need to develop better methods for predicting and assessing how these chemicals might interact as part of a complex mixture, where the presence of multiple compounds could result in a more potent disruptive effect than that of one chemical alone. By studying concentrations of EDCs and their byproducts in people’s systems, we can determine what chemicals people are actually exposed to, and gather better information on whether these exposures are related to long-term health issues.

Overall, the study concluded that fracking health studies should include a significant focus on endocrine disrupting compounds. Among the many risks presented by fracking, exposure to complex mixtures of EDCs in the environment may prove to have extraordinary longterm effects.

Learn more:  http://ehp.niehs.nih.gov/wp-content/uploads/advpub/2015/8/ehp.1409535.acco.pdf

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Chemical Exposures and Health Care Costs

A new economic analysis has concluded that exposure to endocrine-disrupting chemicals likely costs the European Union €157 billion ($209 billion U.S.) a year in actual health care expenses and lost earning potential, according to a new series of studies published in the Endocrine Society’s Journal of Clinical Endocrinology and Metabolism.

A total of four papers were published (overview, neurobehavioral, male reproduction and obesity & diabetes) that focused on specific health conditions that can partly be attributed to endocrine-disrupting chemical (EDC) exposure. These included infertility and male reproductive dysfunction, birth defects, obesity, diabetes, cardiovascular disease and neurobehavioural and learning disorders. A team of eighteen researchers from eight countries led by Leonardo Trasande, Associate Professor of Pediatrics, Environmental Medicine & Population Health at NYU Medical Center, were involved in this landmark initiative.

EDCs interfere with numerous hormone functions and are commonly found in thousands of household products including plastics made with vinyl, electronics, pesticides, and cosmetics.

The overview paper concluded that “EDC exposures in the EU are likely to contribute substantially to disease and dysfunction across the life course with costs in the hundreds of billions per year. These estimates represent only those EDCs with the highest probability of causation; a broader analysis would have produced greater estimates of burden of disease and costs.”

The papers were prepared in conjunction with an evaluation being done by the EU Commission of the economic impact to industry of regulating EDCs in Europe. According to the authors, “Our goal here is to estimate the health and economic benefit of regulating EDCs in Europe, based on current evidence.”

The expert panels put together for this analysis “achieved consensus for probable (20%) EDC causation for IQ loss and associated intellectual disability, autism, attention-deficit hyperactivity disorder, childhood obesity, adult obesity, adult diabetes, cryptorchidism, male infertility, and mortality associated with reduced T.”

“The analysis demonstrates just how staggering the cost of widespread endocrine-disrupting chemical exposure is to society,” said Leonardo Trasande, the lead author in a press statement released by the Endocrine Society. “This research crystalizes more than three decades of lab and population-based studies of endocrine-disrupting chemicals in the EU.”

The press release goes on to say:

“In the EU, researchers found the biggest cost driver was loss of IQ and intellectual disabilities caused by prenatal exposure to pesticides containing organophosphates. The study estimated the harm done to unborn children costs society between €46.8 billion and €195 billion a year. About 13 million lost IQ points and 59,300 additional cases of intellectual disability per year can be attributed to organophosphate exposure.

“Adult obesity linked to phthalate exposure generated the second-highest total, with estimated costs of €15.6 billion a year.

“Our findings show that limiting exposure to the most common and hazardous endocrine-disrupting chemicals is likely to yield significant economic benefits,” said one of the study’s authors, Philippe Grandjean, MD, PhD, Professor of Environmental Medicine at the University of Southern Denmark and Adjunct Professor at the Harvard T.H. Chan School of Public Health. “This approach has the potential to inform decision-making in the environmental health arena. We are hoping to bring the latest endocrine science to the attention of policymakers as they weigh how to regulate these toxic chemicals.”

The impact of this paper is staggering. It should be a “wake up call” said Linda Birnbaum, Director of the U.S. National Institute for Environmental Health Sciences when asked about the results. It also provides more evidence that low level exposure to chemicals found in everyday household products is affecting the health of many people not just in the Europe, but worldwide.