Lead levels in foods prepared in aluminum pots from Cameroon exceed US guidelines for lead consumption
Lead levels in foods prepared in aluminum pots from Cameroon exceed U.S. guidelines for lead consumption according to a new study published this month. A typical serving contains almost 200 times more lead than California's Maximum Allowable Dose Level (MADL) of 0.5 micrograms per day.
Dr. Jeffrey Weidenhamer, professor of chemistry at Ashland University and an author of the study, discusses research results with Ashland University senior Peter Kobunski, a biochemistry major from Nashport, Ohio.
Credit: Ashland University EagleEye Photography
Researchers at Ashland University and Occupational Knowledge International tested 29 samples of aluminum cookware made in Cameroon and found almost all had considerable lead content. This cookware is common throughout Africa and Asia and is made from recycled scrap metal including auto and computer parts, cans, and other industrial debris.
The study, "Lead Exposure from Aluminum Cookware in Cameroon," was conducted in partnership with the Cameroonian NGO Research and Education Centre for Development (CREPD) and published in the August issue of the journal of Science of the Total Environment.
There are no regulatory standards for lead in cookware but the World Health Organization (WHO) and the U.S. Centers for Disease Control have determined that there is no safe level of exposure to lead.
"This previously unrecognized lead exposure source has the potential to be of much greater public health significance than lead paint or other well-known sources that are common around the world." said Perry Gottesfeld, Executive Director or Occupational Knowledge International.
Recently conducted surveys of lead exposure in Africa and Asia have suggested that blood lead levels have remained stubbornly elevated despite the ban on lead in gasoline in most of the world. "The presence of lead in food cooked in these pots may be one contributing factor to the ongoing lead poisoning epidemic." Gottesfeld said.
"Unlike some other sources of lead contamination, lead poisoning from cookware can impact entire families over a life-time. Even low-level lead exposures can result in reduced IQ and neurological deficits, and contribute to cardiovascular disease." according to Jeffrey Weidenhamer, Professor of Chemistry at Ashland University and an author of the study.
The investigation simulated cooking by boiling acidic solutions in the cookware for two hours and measuring the lead extracted in solution. The researchers also found significant levels of aluminum and cadmium leached from the cookware along with the lead.
According to Gilbert Kuepouo, Executive Director of CREPD and an author of the study, "These locally made aluminum pots are the most commonly used in Cameroon and throughout Africa, so the lead levels we found are alarming and a threat to public health."
In the past aluminum from cookware and other sources was cited as a possible cause of Alzheimer's disease but multiple studies have failed to identify a consistent link. Although the U.S. has set limits for lead leaching from ceramic ware, no regulations address lead exposures from aluminum or other cookware.
Lead exposure in children is linked to brain damage, mental retardation, lower educational performance, and a range of other health effects. Globally lead accounts for more than 674,000 deaths per year.
The article is available online at: http://authors.elsevier.com/a/1PSdhB8ccQ8ZC
About Occupation Knowledge International
OK International is a nonprofit organization based in San Francisco that works to build capacity in developing countries to identify, monitor, and mitigate environmental and occupational exposures to hazardous materials in order to protect public health and the environment. The organization seeks to address inequities in environmental standards between developed and developing countries by working in partnership with industry, government and non-governmental organizations (NGOs). For more information, visit http://www.okinternational.org.
About Ashland University
Ashland University, which has been ranked in the top 200 colleges and universities in U.S. News and World Report's National Universities category, is a mid-sized, private university conveniently located a short distance from Akron, Cleveland and Columbus, Ohio. Ashland University values the individual student and offers a unique educational experience that combines the challenge of strong, applied academic programs with a faculty and staff who build nurturing relationships with their students.
CREPD is a Cameroon based NGO that focuses on health and environmental issues in collaboration with government, industry, and non-governmental organizations. CREPD specializes in promoting sustainable development through the sound management of chemicals and hazardous waste, sustainable agriculture, and responsible mining. CREPD is one of the foremost organizations involved in international negotiations on chemical safety. For more information, visit http://www.crepdcameroon.org
Perry Gottesfeld | Eurek Alert!
One in 5 materials chemistry papers may be wrong, study suggests
15.12.2017 | Georgia Institute of Technology
Scientists channel graphene to understand filtration and ion transport into cells
11.12.2017 | National Institute of Standards and Technology (NIST)
DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.
Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
15.12.2017 | Power and Electrical Engineering
15.12.2017 | Materials Sciences
15.12.2017 | Life Sciences