Feature Channels: Environmental Health

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By determining the three-dimensional structure of proteins at the atomic level, researchers at the National Institutes of Health have discovered how some commonly used flame retardants, called brominated flame retardants (BFRs), can mimic estrogen hormones and possibly disrupt the body’s endocrine system. BFRs are chemicals added or applied to materials to slow or prevent the start or growth of fire.

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Employees who work long hours with high job demands are more likely to develop depression, suggests a study in the August Journal of Occupational and Environmental Medicine, official publication of the American College of Occupational and Environmental Medicine (ACOEM).

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With blue-green algae contaminating lakes nationwide, a Kansas State University toxicologist warns pet owners to understand the bacteria's dangers for their pets and for themselves.

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Exposure to perfluorinated chemicals is linked to changes in thyroid function and may raise the risk of mild hypothyroidism in women, according to a recent study accepted for publication in The Endocrine Society’s Journal of Clinical Endocrinology & Metabolism (JCEM).

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A special section in the Journal of Environmental Quality details the challenges China faces today in managing nutrient losses from crop and livestock production, and how the country must shift from a sole focus on food security to a triple emphasis on food security, efficient use of resources, and environmental protection.

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New research conducted by Texas Tech University scientists has found that low doses of arsenic and estrogen – even at levels low enough to be considered “safe” for humans if they were on their own – can cause cancer in prostate cells.

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A mother's prolonged use of antibacterial soaps containing the chemical triclocarban may harm nursing babies, according to a recent study from the University of Tennessee, Knoxville.

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Montefiore expert provides tips to avoid common summertime maladies.

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A research team led by UCSF scientists has found that exposure in infancy to nitrogen dioxide (NO2), a component of motor vehicle air pollution, is strongly linked with later development of childhood asthma among African Americans and Latinos.

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Ubiquitous plasticizers may have long-term health effects.

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A new study links fetal exposure to a common chemical pollutant, bisphenol A (BPA), to defects of a testicular hormone in newborn boys with undescended testicles. The results, which were presented Monday at The Endocrine Society’s 95th Annual Meeting in San Francisco, suggest yet another potential harmful effect of BPA, which is widely used in many plastics, liners of food cans and dental sealants.

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New research suggests that fetal exposure to the common environmental chemical bisphenol A, or BPA, causes increased inflammation in fat tissues after birth, which can lead to obesity and metabolic syndrome. Results of the animal study were presented Monday at The Endocrine Society’s 95th Annual Meeting in San Francisco.

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A mother’s exposure to triclocarban, a common antibacterial chemical, while nursing her babies shortens the life of her female offspring, a new study in rats finds. The results were presented Monday at The Endocrine Society’s 95th Annual Meeting in San Francisco.

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A study led by researchers at the Johns Hopkins Bloomberg School of Public Health has for the first time found that a mother’s higher exposure to some common environmental contaminants was associated with more frequent and vigorous fetal motor activity. Some chemicals were also associated with fewer changes in fetal heart rate, which normally parallel fetal movements.

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Analyzing soil lead in an urban garden plot is important and sampling approaches may involve tradeoffs between finding ‘hotspots’ versus looking at the average amount of lead when checking for safe levels.

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New technology that creates a personal, portable, and wearable air pollution sensor, developed under the My Air, My Health Challenge, was announced today at the Health Datapalooza in Washington, D.C. The grand prize of $100,000 was awarded to Conscious Clothing.

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In 2012, Nicholas Fisher a distinguished professor in the School of Marine and Atmospheric Sciences (SoMAS) at Stony Brook University and postdoctoral scholar Zosia Baumann, working with a colleague at Stanford University’s Hopkins Marine Station, reported that they had detected radioactivity in Pacific bluefin tuna swimming off the California coast. The source of the radioactivity was Japan’s Fukushima Dai-ichi powerplants, which were damaged by the strong earthquake and subsequent tsunami on 11 March 2011 and released large quantities of radioactivity into the Pacific Ocean. The news prompted widespread media interest and speculation as to the possible risks to seafood consumers posed by the levels of radioactivity found in the tuna.

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A large analysis of more than 100 studies from around the world shows that exposure to pesticides, or bug and weed killers, and solvents is likely associated with a higher risk of developing Parkinson’s disease. The research appears in the May 28, 2013, print issue of Neurology®, the medical journal of the American Academy of Neurology.

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Plastic additives known as phthalates (pronounced THAL-ates) are odorless, colorless and just about everywhere: They turn up in flooring, plastic cups, beach balls, plastic wrap, intravenous tubing and—according to the Centers for Disease Control and Prevention—the bodies of most Americans. Once perceived as harmless, phthalates have come under increasing scrutiny. A growing collection of evidence suggests dietary exposure to phthalates (which can leech from packaging and mix with food) may cause significant metabolic and hormonal abnormalities, especially during early development.

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Air pollutants from traffic are associated with increased asthma severity levels in pregnant asthmatic women, according to a new study.

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Both fine-particle air pollution and noise pollution may increase a person’s risk of developing cardiovascular disease, according to German researchers who have conducted a large population study, in which both factors were considered simultaneously.

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Living near a major roadway during the prenatal period is associated with an increased risk of respiratory infection developing in children by the age of 3, according to a new study from researchers in Boston.

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Academic researchers have found that breathing motor vehicle emissions triggers a change in high-density lipoprotein (HDL) cholesterol, altering its cardiovascular protective qualities so that it actually contributes to clogged arteries. The finding, shown in mice, reveals how car emissions activate the early cell and tissue damage called oxidation that causes inflammation leading to hardening of the arteries and HDL cholesterol may play a key role.

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Global warming trends have a significant influence on the spread of West Nile Virus to new regions in Europe and neighboring countries, where the disease wasn’t present before, according to a new study by the University of Haifa. The study was commissioned by the European Centre for Disease Prevention and Control (ECDC) in Stockholm, which belongs to the European Union. The study found that rising temperatures have a more considerable contribution than humidity, to the spread of the disease, while the effect of rain was inconclusive.

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People with higher levels of cadmium in their urine — evidence of chronic exposure to the heavy metal found in industrial emissions and tobacco smoke — appear to be nearly 3.5 times more likely to die of liver disease than those with lower levels, according to a study by Johns Hopkins scientists.

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Mount Sinai researcher estimates that lead exposure could cause mental retardation in 6 in 1,000 children living near the sites.

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Toxic waste sites with elevated levels of lead and chromium cause a high number of “healthy years of life lost” in individuals living near 373 sites located in India, Philippines and Indonesia, according to a study by a Mount Sinai researcher published online today in Environmental Health Perspectives. The study leader, Kevin Chatham-Stephens, MD, Pediatric Environmental Health Fellow at the Icahn School of Medicine at Mount Sinai, presented the findings today at the Pediatric Academic Societies (PAS) annual meeting in Washington, DC.

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Harsh Bais and Janine Sherrier of the University of Delaware’s Department of Plant and Soil Sciences are studying whether a naturally occurring soil bacterium, referred to as UD1023 because it was first characterized at the University, can create an iron barrier in rice roots that reduces arsenic uptake.

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More than a quarter of a century after the Chernobyl nuclear disaster, many children and teenagers who developed thyroid cancer due to radiation are in complete or near remission, according to a recent study accepted for publication in The Endocrine Society’s Journal of Clinical Endocrinology & Metabolism (JCEM).

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Long-term exposure to air pollution may be linked to heart attacks and strokes by speeding up atherosclerosis, or "hardening of the arteries," according to a University of Michigan public health researcher and colleagues from across the U.S.

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The New York City Police Department and the U.S. Department of Energy's Brookhaven National Laboratory are scheduled to conduct this July the largest urban airflow study ever to better understand the risks posed by airborne contaminants, including chemical, biological and radiological (CBR) weapons as they are dispersed in the atmosphere and in the City's subway system. The NYPD will use the data collected during the three days of research to optimize emergency response following an intentional or accidental release of hazardous materials.

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Today, a group of influential scientists called for swift action by the UN system to prevent harm from a wide variety of synthetic chemicals in consumer products and pesticides that play a role in increased incidences of reproductive diseases, cancer, obesity, and type-2 diabetes worldwide.

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Increase in gold nanoparticles can accelerate aging and wrinkling, slow wound healing, cause onset of diabetes.

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The chances of developing lung cancer associated with asbestos exposure, asbestosis and smoking are dramatically increased when these three risk factors are combined, and quitting smoking significantly reduces the risk of developing lung cancer after long-term asbestos exposure, according to a new study.

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• Exposure during pregnancy was associated with an increased incidence of three cancers. • The highest increases were found for retinoblastoma and germ cell tumors. • Findings require replication in other large studies.

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A new study found that higher levels of mercury exposure in young adults increased their risks for type 2 diabetes later in life by 65 percent. The Indiana U. study is the first to show a link between mercury and diabetes in humans.

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As Earth Day approaches, public health experts are sounding the alarm about endocrine-disrupting chemicals found in the environment. These chemicals have been linked to health conditions such as cancer, infertility and obesity.

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Almost 4 million people die annually from household air pollution (HAP) caused by exposure to the combustion of biomass fuels, kerosene, or coal. A new article explains the need for studies into biomarkers of HAP exposure and predictors of respiratory disease.

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The mystery of how arsenic levels in beer sold in Germany could be higher than in the water or other ingredients used to brew the beer has been solved, scientists announced here today at the 245th National Meeting & Exposition of the American Chemical Society, the world’s largest scientific society. The meeting, which features almost 12,000 reports and other presentations, continues through Thursday.

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Rice imported from certain countries contains high levels of lead that could pose health risks, particularly for infants and children, who are especially sensitive to lead’s effects, and adults of Asian heritage who consume large amounts of rice, scientists said here today. Their research, which found some of the highest lead levels in baby food, was among almost 12,000 reports scheduled for the 245th National Meeting & Exposition of the American Chemical Society, the world’s largest scientific society, which continues through Thursday.

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Earlier efforts to determine the health and environmental effects of the nanoparticles that are finding use in hundreds of consumer products may have produced misleading results by embracing traditional toxicology tests that do not take into account the unique properties of bits of material so small that 100,000 could fit in the period at the end of this sentence.

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Climate drives a large part of diarrheal disease in Sub-Saharan Africa and makes communities vulnerable to climate change.

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Pit latrines are one of the most common human excreta disposal systems globally, and their use is on the rise as countries aim to meet the sanitation-related target of the Millennium Development Goals (MDGs). Strong evidence supports the use of these basic toilets as a way to improve human health. However, improperly designed pit latrines can actually allow disease-causing microbes or other contaminants to leach into the groundwater. The contaminated water puts people, and especially children, at risk of developing potentially life-threatening diarrheal diseases.

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A common test used to determine mercury exposure from dental amalgam fillings may significantly overestimate the amount of the toxic metal released from fillings, according to University of Michigan researchers.

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A Mayo Clinic study has concluded that patients with implanted cardiac devices such as pacemakers and defibrillators can safely drive or ride in an electric car without risk of electromagnetic interference (EMI).

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A team of scientists led by the Wildlife Conservation Society (WCS) and the National University of Singapore (NUS), revealed in a new study, for the first time, the presence of the pathogenic chytrid fungus (Batrachochytrium dendrobatidis) in amphibians sampled in Singapore. And the American bullfrog may be a central player in the spread of the disease.