[Stoves] Kyrgyzstan stove pilot - update on air quality.

[Nikhil Desai]

Crispin: 

I hope the sample is large, all the confounding factors have been addressed, and the report has a very specific statement of avoided disability in duration by age, sex, ethnicity, level of education. 

Publication in The Lancet may require high fees and so may a long list of co-authors. Gates Foundation and GACC may help with some side arrangements - getting the right seals of approval for Goldman Sachs aDALY net of hand burns. 

What is the sulfur content and SO2 emission rate? I hear SO2 emissions might now earn an equivalent CO2 emission reduction credit. A Copper Standard Dome  had approached me to secure sulfur emission rights. 


Nikhil Desai
+91 909 995 2080
Skype: nikhildesai888


>>   Original Message  
>> From: Crispin Pemberton-Pigott
>> Sent: Wednesday, March 22, 2017 4:27 PM
>> To: 'Stoves (stoves at lists.bioenergylists.org)'
>> Reply To: Discussion of biomass cooking stoves
>> Subject: [Stoves] Kyrgyzstan stove pilot - update on air quality.
>> 
>> Dear Friends
>> 
>> Dr Talant, the Kyrgyzstan government's head cardiologist, is about to release his report on measured exposures to PM2.5 taken this winter in more than 50 rural homes. These measurements were made before, after and side by side with homes receiving an advanced combustion stove, either for wood, dung, cotton stalks, coal or a combination. There are 4 stove models involved.
>> 
>> His preliminary numbers are very encouraging. Today he told us that they recorded exposures as high as 7000 µg/m3 indoors prior to changing the stove. That is 35 times higher than a Red Alert day in Beijing.
>> 
>> The impact produced by the advanced combustion Model KG4.2 coal stove (a refuellable crossdraft gasifier) was to reduce the PM2.5 level to the range of 10-40 µg/m3, a reduction of 99%. He reports that elderly people have noticeably better health, fewer headaches (caused by high CO) and better lung function. Users report they simply 'feel better'. They are testing pulmonary function as part of the monitoring which will be expanded this year.
>> 
>> As the stoves do not cost more than conventional stoves of similar quality, it is expected that uptake by the market will be strong. Something unexpected was the very high level of CO in many homes. It is also highly variable, often rising above 100 ppm. With the new stoves, Dr Talan reports that there is a very low level that is steady. People exhale CO so we do expect that it is not reduced to zero.
>> 
>> The uprated Model 2.5's mentioned in the last update were delivered to Naryn on Monday and probably installed today. There are a total of 10. It is still snowing heavily and very cold up there. We will be getting repots in the coming weeks about how they are received in the villages. A complaint is that people no longer can see if there is someone 'home' because there is nothing visible coming from the chimney. One report said someone burned their hand by placing it on a stove thinking, arriving home 4 hours after loading it with dung, that because of the time they had been away and the lack of smoke, that the fire was out. Wrong assumption.
>> 
>> When the health impact report is available, I will post a link. It contains multiple, clear evidences that improving IAQ has specific, positive medical impact.
>> 
>> Regards
>> Crispin
>> 
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