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:3/15/2016)... York , March 15, 2016 ... market report published by Transparency Market Research "Digital Door Lock ... and Forecast 2015 - 2023," the global digital door lock ... 731.9 Mn in 2014 and is forecast to grow at ... Growth of micro, small and medium enterprises (MSMEs) across the ...
(Date:3/11/2016)... http://www.apimages.com ) - --> http://www.apimages.com ) - ... ( http://www.apimages.com ) - Germany . The ... refugee identity cards. DERMALOG will be unveiling this device, and a ... next week.   --> Germany . ... new refugee identity cards. DERMALOG will be unveiling this device, and ...
(Date:3/9/2016)... YORK , March 9, 2016 This ... and future states of the RNA Sequencing (RNA Seq) ... segments such as instruments, tools and reagents, data analysis, ... Analyze various segments of the RNA-Sequencing market such as ... services Identify the main factors affecting each segment and ...
Breaking Biology News(10 mins):
(Date:5/26/2016)... , May 26, 2016  Agriculture nutrients are ... Des Moines, Iowa is running their nitrate ... Lake Erie and coastal regions nationwide ... to preventing this widespread issue. NECi Superior ... Upper Peninsula, developed a new, easy to use ...
(Date:5/26/2016)... (PRWEB) , ... May 26, 2016 , ... ... manufacturing company, today announced several positive developments that position the Company for the ... result of the transaction, Craig F. Kinghorn has been appointed Chairman of the ...
(Date:5/25/2016)... ... 2016 , ... Founder of the Fitzmaurice Hand Institute in ... of the hand by the National Board of Physicians and Surgeons, as of ... in his pursuit of providing the most comprehensive, effective treatment for his patients, ...
(Date:5/25/2016)... ... May 25, 2016 , ... Biohaven Pharmaceutical Holding Company Ltd. ... the company’s orphan drug designation request covering BHV-4157 for the treatment of Spinocerebellar ... FDA. , Spinocerebellar ataxia is a rare, debilitating neurodegenerative disorder that is ...
Breaking Biology Technology: