[Stoves] EPA rule changes of interest to Stovers

[Crispin Pemberton-Pigott]

Dear Friends

 

>From http://www.epa.gov/lawsregs/documents/regagendabook-spring10.pdf 

 

Some changes to consider:

 

588 SAN No. 5155 Measurement of PM2.5 and PM10 Emissions by Dilution
Sampling 2060-AO50

"Small Entities Affected: No"

 

Really? Well at least we are on the right track. Condensing particles out of
the stack gas is an important part of assessing the emissions from poor
combustion. 

 

 

589 SAN No. 5237 Revisions to Test Method for Determining Stack Gas Velocity
Taking Into Account Velocity Decay Near the Stack Walls 2060-AP-08

 

This relates to including non-round chimneys and calculating the volume of
gases passing through. Combustion analysers have long done this so nothing
to see here.

 

EPA Test Method 5 (used to condensing aerosol particles) is being updated
with a math correction. (see p.43/178 of above link).

 

H2S (the main issue with domestic stoves) still does not get any mention as
everyone concentrates on SO2. There is in my experience a consistent belief
that if a stove does not emit SO2, the S somehow disappears. Tip of the hat
to Prof Annegarn (U of Johannesburg) Geography post-grads for highlighting
the importance of domestic fire coal-sourced H2S (the 'stink' of coal) which
is the alternative. Stoves with poor combustion definitely emit lower SO2,
but obviously it has to be something else if it is not SO2, and the answer
is H2S which is really toxic.

 

Hydrogen Fluoride (HF) can be emitted by burning coal on any scale. Glad to
see it mentioned on p. 79/178.

 

There is no mention of domestic coal combustion this year.

 

Regards

Crispin

 

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