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:3/27/2017)... ROCKVILLE CENTRE, N.Y. , March 27, 2017 ... by Healthcare Information and Management Systems Society (HIMSS) ... Analytics Outpatient EMR Adoption Model sm . In ... top 12% of U.S. hospitals using an electronic ... recognized CHS for its high level of EMR ...
(Date:3/24/2017)... -- Research and Markets has announced the addition of ... - Industry Forecast to 2025" report to their offering. ... The Global Biometric Vehicle ... around 15.1% over the next decade to reach approximately $1,580 million ... estimates and forecasts for all the given segments on global as ...
(Date:3/23/2017)... Research and Markets has announced the addition of the ... to 2025" report to their offering. ... The Global Vehicle Anti-Theft System Market ... the next decade to reach approximately $14.21 billion by 2025. ... for all the given segments on global as well as regional ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... ... October 10, 2017 , ... ... program has won a US2020 STEM Mentoring Award. Representatives of the FirstHand program ... in Volunteer Experience from US2020. , US2020’s mission is to change the trajectory ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... 13 prestigious awards honoring scientists who have made outstanding contributions ... scheduled symposium during Pittcon 2018, the world’s leading conference and exposition for laboratory ...
(Date:10/9/2017)... , ... October 09, 2017 ... ... on October 5, 2017, in the medical journal, Epilepsia, Brain Sentinel’s SPEAC® ... gold standard, video EEG, in detecting generalized tonic-clonic seizures (GTCS) using surface ...
(Date:10/6/2017)... ... October 06, 2017 , ... On Tuesday, October 24th, ... INSIGhT, the first-ever adaptive clinical trial for glioblastoma (GBM). The featured speaker will ... free and open to the public, but registration is required. , WHAT: ...
Breaking Biology Technology: