[Stoves] News 24 Jan 2017: Joint Research on air pollution of Mongolia

[Crispin Pemberton-Pigott]

Nikhil you are on the right page and path.

The source apportionment ‎done by Prof Lodoysamba is in the AMHIB report (WB).

Windblown dust from the Gobi Desert is important, as is ash from the ponds next to the power stations. The latter can be managed.

Vehicle dust and construction is large and major. Many cars are very old and polluting. Fortunately all the coal is very low sulphur. 0.2% mostly. They are lucky.

Cooling tower steam, the favourite photo of climate alarm, is the most important GHG (which is sort of fair if they call it 'pollution') can be seen around all the power plants. But the PM in the city is not impacted severely at all by the CHP plants.

Lodoysamba said stoves and home boilers are now 45% of the city air pollution. Most of the rest is vehicles. Of that 45% a great proportion is the unmodified low pressure boilers. I hope to influence that within a few months. There is no reason not to adopt better designs and carry on.

Adapt and adopt.

Regards
Crispin


Crispin:

We are not in disagreement at all. You and I just have different time frames in mind. (I went to UB in 1998 summer, before the CHP was rehabilitated and new units added.

BTW, it is not that some units emit "nothing".  They do emit steam - the most important GHG! - and small amounts of acidic gases and fine particulates.

A source apportionment study was done for UB by Sarath Guttikunda,maybe 10 or more  years ago?

Dust and auto emissions are probably more serious sources now, if ger emissions are coming under control. I looked into small boilers and aimak CHPs/diesels around ten years ago, but didn't go there.

Nikhil

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Message: 14
Date: Fri, 27 Jan 2017 08:24:42 +0000
From: Crispin Pemberton-Pigott <crispinpigott at outlook.com<mailto:crispinpigott at outlook.com>>
To: Discussion of biomass cooking stoves
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Subject: Re: [Stoves] News 24 Jan 2017: Joint Research on air
        pollution of Mongolia
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Dear Everyone

>True, "Air pollution represents a major threat to public health in Ulaanbaatar, and reductions in home heating emissions should be the primary focus of future air pollution control efforts". But that is because the central heat and power plant's emissions have been reduced dramatically.

I beg to differ. The combined heat and power (CHP) plants are 4 in number. Station 1 closed long ago.
Station 2 was converted to a coal semi-coking plant several years ago.
Station 3 is 156 MW and is not a major source of PM emissions in the city.
Station 4 is 540 MW and has a 250m tall chimney which emits into the air stream passing over the city?s inversion layer. There is virtually nothing from No.4 reaching the city?s air.
Station 5 has just been approved and emits nothing.

During peak demand in summer for air conditioning and so on, the PM2.5 level in the city is 12-15 microgrammes per cubic metre proving that once space heating is removed, there is nothing from the power stations.

There are several majors sources:
Vehicles
Fugitive dust from the Gobi and
Power station ash dumps,
Street dust
Low pressure boilers
High pressure boilers such as apartment buildings
Domestic stoves

Domestic stoves were the largest contributor. They have dropped in importance.  Now it is low pressure boilers. I hear that two new models designed by the Stove Development Centre (actual product development!) will be introduced to the market this year. The SDC is attached to the SEET Lab and headed by the Mongolian University of Science and Technology and the Energy Research Centre (Min of Energy).

Regards
Crispin
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