HOME >> BIOLOGY >> NEWS
A spread of a different kind

al exposure to contaminants," said Ruth Alcock, a researcher at Lancaster University who worked on the study.

Butter has been used previously to measure human dietary exposure to chemicals, she noted, but never before to monitor air pollutant levels. Consumption of the trace amounts of pollutants found in butter has shown no effect on human health, Jones said.

The study, a collaboration between Greenpeace Research Laboratories (who collected the samples) and the University of Lancaster (who conducted the measurements), evaluated butter samples from 23 countries. The researchers found that European and North American butter had the highest PCB levels. Lower contaminant levels were found in samples from the Southern Hemisphere, including Australian and New Zealand butters. PCB levels ranged from 110 to 3,330 picograms per gram of butter. A picogram is a trillionth of a gram, far smaller than the microgram levels that might cause a person harm, Jones noted.

Persistent organic pollutants, or POPs, are chemical substances that linger in the environment, bioaccumulate through the food chain, and pose a risk to human health and the environment, according to the United Nations Environment Programme, an international organization created to control the pollutants. The U.N. group calls for the reduction and eventual elimination of POP emissions.

In December, the U.N. officials announced that 122 countries, including the U.S., have negotiated a treaty to eliminate 12 specific persistent organic pollutants. Eight pesticides (aldrin, chlordane, DDT, dieldrin, endrin, heptachlor, mirex and toxaphene) are on the list, in addition to PCBs, dioxins, furans and hexachlorobenzene - an industrial chemical used to make synthetic rubber, ammunition and fireworks.

"With suitable controls, safeguards and further research," the researchers conclude, "we think that butter could be used to monitor the regional and global distribution of [POPs] and the
'"/>

Contact: Beverly Hassell
b_hassell@acs.org
202-872-4065
American Chemical Society
13-Mar-2001


Page: 1 2 3

Related biology news :

1. Viral suspect for amphibian decline traced to human spread through bait
2. Scientists discover proteins involved in spread of HIV-1 infection
3. Rutgers-Newark biologist links presence of protein to spread of cancerous cells
4. Physics gravity model applicable to disease spread
5. New discovery could provide tool to detect whether a cancer will develop and spread
6. Scientists identify molecular link driving spread of skin cancer
7. Secret behind hard exoskeletons, spreading wings revealed
8. Study suggests first molecular target to halt spread of HPV
9. UNC researchers identify virus gene involved in tumor cell growth, spread
10. Chestnut trees to spread across landscape again, says Purdue scientist
11. Despite confinement, crop genes can spread fast to wild

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: spread different kind

(Date:8/28/2014)... America (ESA) is pleased to announce the selection of ... Society. Honorary Membership acknowledges those who have served ESA ... the affairs of the Society that has reached an ... the ESA Governing Board and then voted on by ... the Awards Ceremony at Entomology 2014, ESA,s Annual Meeting ...
(Date:8/28/2014)... than traditional cigarettes, but still release toxins into ... USC. , Scientists studying secondhand smoke from e-cigarettes ... harmful particles, with close-to-zero exposure to organic carcinogens. ... in second-hand e-cigarette smoke were found to be ... levels of polycyclic aromatic hydrocarbons cancer-causing organic ...
(Date:8/28/2014)... MARC (Maximizing Access to Research Careers) Program has ... Society of America,s 27th Annual Mouse Molecular Genetics ... in Pacific Grove, California. These awards are ... doctorates and scientists from underrepresented groups into the ... encourage the participation of young scientists at the ...
Breaking Biology News(10 mins):Fred Baxendale selected as Honorary Member of the Entomological Society of America 2Second-hand e-cig smoke compared to regular cigarette smoke 2
(Date:8/28/2014)... Kent, WA (PRWEB) August 28, 2014 ... Synder Filtration’s polymeric membranes to its stable of ... of available molecular weight cut-offs and include membrane filters ... a steady increase in customer demand for our membrane ... a greater variety of flat sheet membranes,” explains Sterlitech ...
(Date:8/28/2014)... new work by a Florida State University research team ... take your temperature, emit white light, and convert photon ... looks like a butterfly. , Biwu Ma, associate professor ... the FAMU-FSU College of Engineering, created the molecule in ... to discover that his creation has many other unique ...
(Date:8/28/2014)... 28, 2014 A new market ... world is available from Strategic Consulting, Inc., the ... Industrial Microbiology Market Review, Fourth Edition: Global Review ... (IMMR—4) tracks and compares microbiology test volumes, market ... Europe and Asia, and forecasts future volumes and ...
(Date:8/28/2014)... 28, 2014 PrimeSource Building Products, ... selected SoundConnect to support their communication ... audio and web conferencing platform GlobalMeet powered by ... employees’ needs. SoundConnect delivers award winning “results ... Building Products will be utilizing GlobalMeet powered ...
Breaking Biology Technology:Sterlitech Corporation Enhances Its Selection of Flat Sheet Membrane Filters 2Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices 22 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 22 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 3PrimeSource Chooses SoundConnect as Collaboration Provider 2
Cached News: