RE: Benzo(a)pyrene emissions from MI area sources

["Jon Dettling" <dettling@glc.org>]

Dennis,

These are good questions. Regarding the data upload, I suggest we hang onto
these until we have a final set of updates and then make the modifications
to the repository all at once. I think this will simplify keeping track of
what changes are made and which have been uploaded and which haven't. Let's
make a folder on the FTP site for the import files.

Regarding records with zero emissions: this is probably something worth
discussion with the group on our next call. For the current purposes, as
long as you can let us know that this is the reason for the missing records,
I think that's adequate. However, for future inventories, we may want to ask
people to include zeros. This would save us some effort when looking at the
data and trying to identify who is or isn't reporting certain sources.

For human crematoria, I also show that Illinois reported emissions for both
31502101 and 31502102. Their emissions for 2102 were nearly 100lb, which
falls into the range of being significant. Their and your estimates for 2102
were less than thousandths of pounds. If there is an issue with the emission
factor, perhaps we should remove these emissions. If not, perhaps the other
states should include them. Does anyone have a summary of what the "issue"
is with the current emission factor?

For woodstoves, I think the way you've reported them is fine. It's important
to include fireplaces as well. I believe the NEI guidance has separate
emission factors for 80001, 80002 and 80003. Ontario, Pennsylvania and
Wisconsin also did not report fireplaces. I know Orlando is still waiting
for some clarification on the use of emission factors for fireplaces without
inserts.


______________________
Jon Dettling
Great Lakes Commission
734-971-9135
dettling@glc.org

-----Original Message-----
From: Dennis McGeen [mailto:MCGEENDD@michigan.gov] 
Sent: Thursday, August 10, 2006 1:30 PM
To: Cabrera-Rivera, Orlando
Cc: Buzz Asselmeier; dettling@glc.org
Subject: Benzo(a)pyrene emissions from MI area sources

I have created the RAPIDS import files for B(a)P for area source fuel
combustion.  To whom should I send these?

I've created files for some of the area fuel combustion categories
where activity data was zero, or point source deductions were larger
than total estimated activity (residential and industrial combustion of
distillate/residual oil).  Should I remove these files, or send them to
document that no activity data was identified?

A couple of other questions:

Human crematoriums:  I presume I should refrain from estimating this
category since none of the other states did, and since there may be
problems with the emission factor.

For 2104008051, noncatalytic woodstoves: Michigan used 2104008001 and
2104008010 for reporting pollutants for residential woodburning.  B(a)P
was reported under 2104008010 so I think that if I reported B(a)P under
8051 it would duplicate what's under 8010.  However, I could estimate
B(a)P for 2104008001 using the factor 2.48e-03 lb/ton (borrowed from the
SCC 2104008010), I believe that is the appropriate factor to use.

Dennis




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