Navigation Links
Ultrafine particles raise concerns about improved cookstoves
Date:3/27/2013

A new study raises concerns about possible health impacts of very small particles of soot released from the "improved cookstoves" that international aid agencies are promoting to replace open-fire cooking in developing countries. It appears in the ACS journal Environmental Science & Technology.

Brian Just and colleagues point out that 3 billion people worldwide still cook meals on stoves or open fires that burn wood, animal dung or other biomass fuel. These fires, which sometimes are indoors, release air pollutants linked to 3.5 million deaths annually. Soot, or so-called "black carbon" (BC), released in the smoke also is a factor in global warming. In an effort to remedy the situation, aid agencies plan the distribution of 100 million new, clean-burning cookstoves during the next 10 years. Concerns have arisen, however, about pollutants released by the stoves. Just's team focused on emissions of ultrafine soot particles linked to some of the most serious health problems.

They describe laboratory tests comparing two styles of improved cookstoves to a traditional three-stone open fire burning wood. Improved stoves did release much lower overall levels of soot. However, per quantity of fuel burned, they did not emit significantly smaller amounts of BC, and they produced three times the quantity of worrisome ultrafine particles that can penetrate deep into the lungs compared to the open fire. The tests included only a narrow range of operating conditions, but for these conditions, at least, it appears that new cookstoves are not automatic "fixes" to the health problems associated with cooking activities and that, "Given improved cookstoves' recent funding and attention, continued improvement in our understanding of emissions and end effects is important," they say.


'/>"/>
Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert

Page: 1

Related biology news :

1. Are silver nanoparticles harmful?
2. Nature: Video reveals wave character of particles
3. Hybrid copper-gold nanoparticles convert CO2
4. NIST/UMass study finds evidence nanoparticles may increase plant DNA damage
5. Canadian girl, 16, invents disease-fighting, anti-aging compound using tree particles
6. From pomegranate peel to nanoparticles
7. Palladium-gold nanoparticles clean TCE a billion times faster than iron filings
8. Paints and coatings containing bactericidal agent nanoparticles combat marine fouling
9. Ions, not particles, make silver toxic to bacteria
10. Oh, my stars and hexagons! DNA code shapes gold nanoparticles
11. Carnegie Mellon study shows skin-aging radicals age naturally formed particles in the air
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... Yale University researchers have identified a handful of bacterial ... as Crohn,s disease and ulcerative colitis, using patients, own ... are published Aug. 28 in the journal Cell ... intestinal microbiota, which plays a critical role in the ... only a small number of bacterial species affect a ...
(Date:8/28/2014)... FASEB MARC (Maximizing Access to Research Careers) Program has ... of Human Genetics from October 18 22, 2014 ... to promote the entry of students, post doctorates and ... basic science community and to encourage the participation of ... This year MARC conferred 16 awards totaling $29,600., ...
(Date:8/28/2014)... The support of peer groups and clinicians ... programs, according to recent University of Georgia research. ... the Athens-Clarke County area determined that role models ... of mothers of infants. , "Mothers who received ... at breastfeeding," said study co-author Alex Anderson, an ...
Breaking Biology News(10 mins):Yale study identifies possible bacterial drivers of IBD 2Breastfeeding study shows need for effective peer counseling programs 2
... is available in German . , ... species of the Galapagos archipelago, treks slowly and untiringly ... Institute for Ornithology in Radolfzell, together with the Charles ... acceleration measurements to find out that especially the dominant ...
... A study published in the current issue ... available on-line at http://www.ingentaconnect.com/content/cog/ct/ , has found ... (SM-MSCs) or adipose tissue (ADSCs) were injected into ... laboratory rats that had suffered a myocardial infarction, ...
... more than 200 million people every year mainly in ... the Plasmodium parasite, which is spread by infected ... but more than half a million people nevertheless die every ... during the past decade have reduced the distribution of the ...
Cached Biology News:Galapagos tortoises are a migrating species 2Galapagos tortoises are a migrating species 3Study suggests different organ-derived stem cell injections improve heart function 2New method for diagnosing malaria 2
(Date:8/29/2014)... August 29, 2014 Due to a misstatement ... week, the Adult Stem Cell Technology Center, LLC ( ASCTC ... stem cell therapy research that might benefit ALS patients. ... for new stem cell technologies and therapeutic applications, FRC listed ... Bucket Challenge donors who wish not to support research ...
(Date:8/28/2014)... City, Ca. (PRWEB) August 28, 2014 ... E3 rating for an alcohol-based hand sanitizer, asks food ... harvest by comparing the hand sanitizer they’re currently using ... Spray . Hand hygiene is critical to fighting cross-contamination ... environment. Best Sanitizers believes there are key criteria ...
(Date:8/28/2014)... PA (PRWEB) August 28, 2014 The ... create a culture that will allow individuals to perform ... becoming increasingly important for employers looking to compete in ... industries are embracing this trend, as the sector increasingly ... of a company, which will have real results on ...
(Date:8/28/2014)... Florida State University research team has led to a ... white light, and convert photon energy directly to mechanical ... , Biwu Ma, associate professor in the Department of ... Engineering, created the molecule in a lab about a ... creation has many other unique capabilities. , For example, ...
Breaking Biology Technology:The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 2The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 3Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 3Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 3Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices 2
... Exagen Diagnostics, Inc. , a specialty focused ... tests for rheumatologists and gastroenterologists, announced today the appointment ... Tornoe has more than 20 years of ... making him a key hire as Exagen broadens its ...
... LOS ANGELES, Aug. 10, 2011 Genesis Biopharma, ... cancer immunotherapies, today announced it has signed a ... National Cancer Institute (NCI).  Under the terms of ... Biopharma will work with Steven A. Rosenberg, M.D., ...
... DIEGO, Aug. 9, 2011 Verenium Corporation (Nasdaq: ... development and commercialization of high-performance enzymes, today reported a summary ... quarter and six months ended June 30, 2011. ... terms of product revenues and partnership negotiations in the first ...
Cached Biology Technology:Eric Tornoe Joins Exagen Diagnostics as President and COO 2Genesis Biopharma Signs Cooperative Research and Development Agreement With the National Cancer Institute to Develop Cancer Immunotherapies 2Genesis Biopharma Signs Cooperative Research and Development Agreement With the National Cancer Institute to Develop Cancer Immunotherapies 3Verenium Reports Financial Results for the Second Quarter and Six Months Ended June 30, 2011 2Verenium Reports Financial Results for the Second Quarter and Six Months Ended June 30, 2011 3Verenium Reports Financial Results for the Second Quarter and Six Months Ended June 30, 2011 4Verenium Reports Financial Results for the Second Quarter and Six Months Ended June 30, 2011 5Verenium Reports Financial Results for the Second Quarter and Six Months Ended June 30, 2011 6Verenium Reports Financial Results for the Second Quarter and Six Months Ended June 30, 2011 7Verenium Reports Financial Results for the Second Quarter and Six Months Ended June 30, 2011 8Verenium Reports Financial Results for the Second Quarter and Six Months Ended June 30, 2011 9
... performance for all vacuum requirements. A 3 ... to suit all applications. The large, sideview ... proper oil levels at a glance. The ... work with all Thermo Savant SpeedVac concentrating ...
... used to assess the effect of drugs on ... and rats using one unit in a safe ... are placed on textured drums to avoid slipping. ... platforms below, its test results are recorded. • ...
... 8-iso-13,14-dihydro-15-keto Prostaglandin F2α (8-iso-13,14-dihydro-15-keto PGF2α) ... 8-isoprostane (8-iso PGF2α), in rabbits, monkeys ... PG-like product of non-specific lipid peroxidation. ... infused 8-isoprostane is converted primarily to ...
... 3C protease from human rhinovirus (HRV 3C) ... brand line of restriction grade proteases. The ... 6XHis-fusion protein, which recognizes the same cleavage ... small, 22 KDa size of the protease, ...
Biology Products: