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:5/16/2017)... 2017   Bridge Patient Portal , an ... MD EMR Systems , an electronic medical record ... have established a partnership to build an interface ... GE Centricity™ products, including Centricity Practice Solution (CPS), ... These new integrations will allow healthcare delivery networks ...
(Date:4/24/2017)... 24, 2017 Janice Kephart , ... Identity Strategy Partners, LLP (IdSP) , today issues ... President Trump,s March 6, 2017 Executive Order: ... vetting can be instilled with greater confidence, enabling ... all refugee applications are suspended by until at ...
(Date:4/18/2017)... -- Socionext Inc., a global expert in SoC-based imaging and computing solutions, ... which features the company,s hybrid codec technology. A demonstration utilizing TeraFaces ... will be showcased during the upcoming Medtec Japan at Tokyo Big ... Las Vegas Convention Center April 24-27. ... Click here for an image of ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... (PRWEB) , ... October 11, 2017 , ... Disappearing forests ... the lives of over 5.5 million people each year. Especially those living in larger ... startup Treepex - based in one of the most pollution-affected countries globally - decided ...
(Date:10/10/2017)... CALIF. (PRWEB) , ... October 10, 2017 , ... San ... part of its corporate rebranding initiative announced today. The bold new look is ... reach, as the company moves into a significant growth period. , It will also ...
(Date:10/10/2017)... ... ... Dr. Bob Harman, founder and CEO of VetStem Biopharma, Inc. ... event entitled “Stem Cells and Their Regenerative Powers,” was held on August 31st, ... was joined by two human doctors: Peter B. Hanson, M.D., Chief of Orthopedic Surgery, ...
(Date:10/10/2017)... ... October 10, 2017 , ... USDM ... firm for the life sciences and healthcare industries, announces a presentation by Subbu ... , The presentation, “Automating GxP Validation for Agile Cloud Platforms,” will present a ...
Breaking Biology Technology: