[Stoves] Delhi air

[Nikhil Desai]

Why are we fussing over a little polluted day or week in Delhi or Beijing,
just when thousands of experts are gathered in Bonn right now to save some
20 billion people (7+ billion today plus ~13 billion more to be born in the
next 100 years) from premature mortality attributable to fossil CO2?

Let's keep priorities straight - earth before people.

Mama before babies. Logical, no?

Nikhil


On Thu, Nov 9, 2017 at 8:01 AM, Crispin Pemberton-Pigott <
crispinpigott at outlook.com> wrote:

> Dear Anil
>
> Many cities have better air quality than Beijing, and many have worse. I
> don't know why people talk so much about Beijing air. It is frequently very
> good. It happens that Beijing is a very good agricultural region with high
> humidity and fog. Newspapers have no problem taking photos of morning fog
> and claiming it is 'caused by coal smoke'.
>
> The burning of ag waste is a major issue in Hebei province which surrounds
> ‎Beiging. At this time of year crop waste burning on the cold, damp ground
> can drive the PM count in Beijing over 400 ug/m^3. The worst days I have
> experienced there are caused by biomass. It can be as bad as Singapore when
> they burn peat bogs in Indonesia to plant oil palms to make biodiesel for
> Europe.
>
> The maximum readings in northern cities and Ulaanbaatar in Mongolia can
> reach numbers ‎50 times that of Beijing. Vehicles and garbage burning (lack
> of services in poor areas) are major sources of PM2.5.
>
> The near-universal cause is bad combustion because nearly all small scale
> production of pollution is combustible fuel. Flyash is rarely caused by
> domestic sources because they don't have fans. Fuel composition can have an
> effect. The Kara Keche coal from central Kyrgyzstan has extremely fine ash
> and is a problem within the stove, if not outdoors. A high performance dung
> stove can make fine white ash. We are adapting the Model 2.5 to have an ash
> drawer to make handling it easier. We want all those minerals to go back to
> the land.
>
> The typical location is high altitude where ‎there is little wood.
>
> Regards
> Crispin
>
> ‎
>
> https://www.ndtv.com/delhi-news/gas-chamber-delhi-
> records-pollution-reading-10-times-that-of-beijing-1772983?
> pfrom=home-lateststories
> <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ndtv.com%2Fdelhi-news%2Fgas-chamber-delhi-records-pollution-reading-10-times-that-of-beijing-1772983%3Fpfrom%3Dhome-lateststories&data=02%7C01%7Ccrispinpigott%40outlook.com%7Ca44dbdabb6754b737bd308d5274f4e64%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636458143928706912&sdata=Ufb%2FsndI7nYeJWVLeuziC%2BAxZtQgjUbQKq9WAe%2F7Yac%3D&reserved=0>
>
> This has nothing to do with biomass stoves as some people in Clean Cooking
> forum suggested. It is mostly vehicular pollution together with
> agricultural residues burning.
>
> Cheers.
>
> Anil
>
> Nimbkar Agricultural Research Institute (NARI)
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