(Press-News.org) The discovery of potential environmental and human health effects from disposal of millions of rechargeable lithium-ion batteries each year has led scientists to recommend stronger government policies to encourage recovery, recycling and reuse of lithium-ion (Li-ion) battery materials. That's the conclusion of a new paper in the ACS journal Environmental Science & Technology.
Oladele A. Ogunseitan and colleagues point out that Li-ion batteries have become mainstays for powering everything from smart phones to components in new jetliners, with global sales approaching $8 billion annually. They realized that the short life span (2-4 years) of Li-ion batteries in portable electronic devices would make a huge contribution to the electronic waste problem, which already is the fastest growing form of solid waste. So they decided to see whether potentially toxic materials leach out and become a health and environmental threat after disposal.
Using standardized leaching tests, hazard assessment models and other methods for evaluating hazardous waste, the scientists showed that Li-ion batteries from cell phones would meet federal government definitions of hazardous waste because of lead content. California standards would classify them as hazardous due to cobalt, copper and nickel content. "These findings support the need for stronger government policy at the local, national, and international levels to encourage recovery, recycling, and reuse of lithium battery materials," their report states.
###
The scientists acknowledge funding from the National Science Foundation's Biocomplexity in the Environment, Materials Use: Science, Engineering, and Society Program; the University of California Systemwide Research and Education in Green Materials; and the National Center for Advancing Translational Sciences, National Institutes of Health.
The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 163,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.
To automatically receive news releases from the American Chemical Society, contact newsroom@acs.org.
Follow us: Twitter Facebook
More emphasis needed on recycling and reuse of Li-ion batteries
2013-05-23
ELSE PRESS RELEASES FROM THIS DATE:
Overcoming resistance to anti-cancer drugs by targeting cell 'powerhouses'
2013-05-23
Re-routing anti-cancer drugs to the "power plants" that make energy to keep cells alive is a promising but long-neglected approach to preventing emergence of the drug-resistant forms of cancer — source of a serious medical problem, scientists are reporting. That's the conclusion of a new study published in the journal ACS Chemical Biology.
Shana Kelley and colleagues explain that doxorubicin and other common forms of chemotherapy work by damaging the genes inside the nucleus of cancer cells. Cancer cells divide and multiply faster than surrounding normal cells, making ...
Children of married parents less likely to be obese
2013-05-23
Children living in households where the parents are married are less likely to be obese, according to new research from Rice University and the University of Houston.
"Childhood obesity is a significant public health issue in our country, with nearly one-third of all U.S. children ages 2-17 overweight or obese," said Rachel Kimbro, study co-author, associate professor of sociology at Rice and director of Rice's Kinder Institute Urban Health Program. "Despite this, very little research has been conducted to explore the impact of family structure on this epidemic."
In ...
NLST: CT detects twice as many lung cancers as X-ray at initial screening exam
2013-05-23
National Lung Screening Trial (NLST) investigators also conclude that the 20 percent reduction in lung cancer mortality with low-dose computed tomography (LDCT) versus chest X-ray (CXR) screening previously reported in the NLST primary paper is achievable at experienced screening centers in the United States.
Philadelphia, PA—Physicians have more information to share with their patients about the benefits and risks of LDCT lung cancer screening following today's publication in the New England Journal of Medicine of the results of the first (of three planned) annual screening ...
Mosquito behavior may be immune response, not parasite manipulation
2013-05-23
Malaria-carrying mosquitos appear to be manipulated by the parasites they carry, but this manipulation may simply be part of the mosquitos' immune response, according to Penn State entomologists.
"Normally, after a female mosquito ingests a blood meal, she matures her eggs and does not take another one until the meal is digested," said Lauren J. Cator, postdoctoral fellow in entomology and a member of the Center for Infectious Disease Dynamics, Penn State. "If infected, however, mosquitos will wait to eat until the parasites developing within the gut mature and migrate ...
Alleviating hunger in the US -- researcher says, it's a SNAP
2013-05-23
URBANA - A University of Illinois researcher says that the cornerstone of our efforts to alleviate food insecurity should be to encourage more people to participate in the Supplemental Nutrition Assistance Program (SNAP) "because it works."
According to Craig Gundersen, SNAP, formerly known as the Food Stamp Program, is a great social safety net program and with some additional improvements could be even more successful at reducing the number of food-insecure households. Gundersen is a U of I professor of agricultural and consumer economics and executive director of the ...
Survey points out deficiencies in addictions training for medical residents
2013-05-23
A 2012 survey of internal medicine residents at Massachusetts General Hospital (MGH) – one of the nation's leading teaching hospitals – found that more than half rated the training they had received in addiction and other substance use disorders as fair or poor. Significant numbers felt unprepared to diagnose or treat such disorders, results similar to surveys of practicing physicians. In response to the findings, recently published online in the journal Substance Abuse, the MGH has increased residents' training in addiction medicine.
"Our residents estimated that one ...
Innovation could bring flexible solar cells, transistors, displays
2013-05-23
WEST LAFAYETTE, Ind. – Researchers have created a new type of transparent electrode that might find uses in solar cells, flexible displays for computers and consumer electronics and future "optoelectronic" circuits for sensors and information processing.
The electrode is made of silver nanowires covered with a material called graphene, an extremely thin layer of carbon. The hybrid material shows promise as a possible replacement for indium tin oxide, or ITO, used in transparent electrodes for touch-screen monitors, cell-phone displays and flat-screen televisions. Industry ...
Good marriage can buffer effects of dad's depression on young children
2013-05-23
URBANA – What effect does a father's depression have on his young son or daughter? When fathers report a high level of emotional intimacy in their marriage, their children benefit, said a University of Illinois study.
"When a parent is interacting with their child, they need to be able to attend to the child's emotional state, be cued in to his developmental stage and abilities, and notice whether he is getting frustrated or needs help. Depressed parents have more difficulty doing that," said Nancy McElwain, a U of I professor of human development.
But if a depressed ...
Calcium supplements linked to longer lifespans in women
2013-05-23
Taking a calcium supplement of up to 1,000 mg per day can help women live longer, according to a study whose lead author was Lisa Langsetmo, a Ph.D. Research Associate at McGill University, and whose senior author was Prof. David Goltzman, Division of Endocrinology and Metabolism in the Department of Medicine of the Faculty of Medicine and researcher in the Musculoskeletal Disorders axis at the Research Institute of the McGill University Health Centre (RI-MUHC).Their findings are published in the Journal of Clinical Endocrinology & Metabolism (JCEM).
Calcium, an essential ...
Hospitals profit when patients develop bloodstream infections
2013-05-23
Johns Hopkins researchers report that hospitals may be reaping enormous income for patients whose hospital stays are complicated by preventable bloodstream infections contracted in their intensive care units.
In a small, new study, reported online in the American Journal of Medical Quality, the researchers found that an ICU patient who develops an avoidable central line-associated bloodstream infection (CLABSI) costs nearly three times more to care for than a similar infection-free patient. Moreover, hospitals earn nearly nine times more for treating infected patients, ...